Posts Tagged ‘Jim Clark’

(Getty)

HRH Prince Phillip during a ‘cooks tour’ of Coventry Climax Ltd, Widdrington Road, Coventry on 21 June 1966…

I tripped over these photographs searching for shots of the FWMV four-valve heads- that 1.5 litre V8 was the engine Jim Clark used to win his 1963 and 1965 F1 titles in the rear of Lotus 25 and 33 chassis, the second of his cups was won using the four-valver.

Unsuccessful as i was in my search for an image of one of the final iterations of this lauded engine, i did find this beauty of a ‘normal’ two valver with HRH alongside- who are the technicians exchanging cam timing details with the chief i wonder?

(Getty)

The one below of the Prince wandering towards the 1.5 litre, still-born, FWMW Flat-16 made me chuckle as it reminded me of a DC Nye anecdote which goes along the lines of the Climax hierachy showing off the ultimate expression of their design and precision engineering capabilities- which was singing its supreme song on the test bed, but conversation was impossible, so Climax Managing Director Leonard Lee instructed revs to be cut back- a fatal mistake as 5000rpm or more was needed, below that critical number savage torsional vibration caused the quill shaft to break with plentiful mechanical mayhem following shortly thereafter- which it did. Whilst not an engineer the royal understood that something was amiss, making soothing sounds of sympathy, he wandered further along the corridors.

Check out the engines below- FWMV show engine, FWMW 16 in the right foreground, an outboard to the left of Lee, but what is the Amal fed four in front of the Prince?

Coventry Climax MD, Leonard Lee, HRH, Wally Hassan with hands in suit pockets behind and others- any clue folks? (Getty)

 

Prince Phillip sussing a CC dyno before sixteen cylinder carnage sets in (Getty)

None of the four FWMW engines laid down ever found their way into the cars designed for them- oil drainage, pumping and windage losses and time pressures ensured that- the 1.5 litre formula ended and Climax decided not to continue in racing so the Lotus 39, Brabham BT19 and Cooper T80 never raced with the sixteen cylinder engine for which they were designed but with a 2.5 Climax FPF four, 3 litre Repco Brabham 620 V8 and 3 litre Maserati V12 instead.

Theoretical advantages of higher revs, greater piston area and better breathing of the sixteen were never realised, but that FWMV four valve V8 delivered the goods even if its advantage over its more conventional sibling was marginal, mind you, in 1.5 litres 5 bhp makes a difference particularly if Clark J was behind the wheel of the car to which said engine was fitted.

(MotorSport)

What a jewel of a thing and what might have been had the 1.5 litre formula lasted another year? FWMW 16 on the test bed in 1965.

The antecedent engine of the Flat-Sixteen conceived by Climax Technical Director Wally Hassan and Chief Designer Peter Windsor-Smith was the 38hp ‘Featherweight’ 1020cc, SOHC four- from little things do big things grow. The two men set about design and construction of a 1.5 litre, twin-cam, two-valve, fuel injected sixteen cylinder engine with central power take off with projected power of circa 240-250bhp @ 12,000rpm after extrapolating the power of the best of the FWMV’s to the greater piston area of their proposed new engine.

Whilst twelve and sixteen cylinder engines were considered, the sixteen modelled best using the bore/stroke ratio of the successful Mk3 FWMV of 0.76:1- this provided for a bore and stroke of 54.1mm by 40.64mm giving a piston area of 23cm. Using the previously achieved 4.5bhp per square inch of piston area gave the 250bhp projection.

Lets not forget competitive pressures were the cause of this exciting engine’s birth- both Ferrari and Honda were racing twelves which showed promise, but 1964 ended up a battle of V8’s- Ferrari, BRM and Coventry Climax of course, with John Surtees’ Ferrari 158 taking the titles by the narrowest of margins.

The design influence of the Ferrari Flat-12 engine showed in that Climax contemplated the motor being used as a stressed member so chassis mounting points for the combined crankcase and cylinder block were provided on the crankcase and heads, of which there were four- four sets of four cylinders.

The crankshaft had central take off to minimise the torsional vibrations of such a long piece of exotic metal- the crank was laid out as two, four-throw single plane-units running in five main bearings but turned through 90 degrees to each other with their inner ends shrunk onto a central spur-gear. The spur gear passed power to an output shaft running below the crank at 80% of engine speed to suit the gearing of the ZF and Hewland transmissions used contemporarily.

1954 ad for the Coventry Climax Featherweight powered firepump unit. In 1951 the prototype 1020cc OHC, two valve, single carb, inline four produced 36bhp @ 3500rpm and delivered twice as much water as an existing unit which weighed double the weight of the Climax FW

 

Vic Berris cutaway showing the elegant simplicity…of the Climax FWMW Sixteen- oh what mighta been! Specifications as per text

The heads, as described above, used two valves and a single plug- the included angle between the valves was 48 degrees with inlet tracts designed for the port type Lucas fuel injection with which the designers were well familiar- Lucas also provided the transistorised ignition system.

Trains of spur gears running off the central power takeoff drove oil pressure and scavenge pumps down below and and the twin overhead camshafts and auxiliaries above the takeoff. Auxiliaries were located outta the way atop the crankcase comprised twin fuel injection pumps, the distributors and alternator- whilst the motor sounds huge it was small- only one inch longer than the FWMV at 30.9 inches and 22.6 inches wide.

Design commenced in 1963 with the first run on the dyno in late 1964- the major problem, as Prince Phillip will attest, was severe torsional vibration at low revs. A stronger replacement took too long and also failed- the best seen on test was 209bhp, none of the problems were insurmountable but the 1965 season was underway with developments of the good ole FWMV good enough to do the job.

Richie Ginther’s Honda RA272 V12 win at Mexico City in the very last Grand Prix of the marvellous 1.5 litre Formula in late October 1965 was perhaps a portent of what may have been an amazing battle between the Ferrari and Honda twelves and Climax sixteen in 1966 had the Formula run one more year, ignoring the small matter of Climax’ withdrawal from racing of course…

Etcetera…

(M Hewitt)

Further research- not exactly the shot of the heads I was after but a great view of the four-valver’s camshafts, plugs and gear driven cams which were characteristic of this Mk6 engine used by Clark and the Mk7 allocated to the Brabham Racing Organisation- the two only 1.5 litre FWMV four valve engines.

The mechanic (who is it folks?) got the Lotus 33 back together in time for Jim to win the Dutch Grand Prix the following July 1965 day from Jackie Stewart’s BRM P261 and Dan Gurney’s Brabham BT11 Climax.

(MotorSport)

Denis Jenkinson eliciting information on the specification of the three Lotus 33’s at Spa in June 1965.

The #17 machine is Jim’s race car fitted with the four-valve engine- note the low level exhausts fitted to his two cars whereas the #18 Mike Spence 33 has a much earlier spec Climax fitted with two-plane crank and crossover exhaust.

Jim won come raceday from Stewart and McLaren’s Cooper T77 Climax with Mike seventh on a circuit where the extra 10bhp or so would have made a hellluva difference.

(unattributed)

Still in the Spa paddock, note the distinctive ribbing on the cam covers of the four valve engine compared with the two valve motor shown in the drawing below. Low level exhausts, Lucas fuel injection- output of this FWMV Mk6 was quoted as 212bhp @ 10,300rpm and 119 lb/ft of torque at 8,900rpm.

ZF five speed transaxle, rubber donuts at the driveshaft inner ends, outboard non-ventilated disc brakes and rear suspension comprising single top link, inverted lower wishbone, two radius rods, coil spring/damper unit and magnesium upright- period typical and oh-so-effective, the rear end bite, traction of the 25/33’s was said to be one of the performance differentiators compared with the BRM P261.

Lotus 25 and early FWMV Weber carbed Mk1 or 2 V8 drawn (unattributed)

Credits…

Getty Images, Doug Nye, M Hewitt, MotorSport, Vic Berris, Coventry Climax, ‘1 1/2 Litre Grand Prix Racing: Low Power, High Tech’ Mark Whitelock

Tailpiece…

(Getty)

A capable pilot, Prince Phillip about to leave Coventry, no doubt he had promised the Queen he would be back in London before afternoon tea- Westland Wessex ‘chopper?

Finito…

(HAGP)

Stewart, Hill, Clark, yellow nosed black bodied Gardner, Palmer looking like Clark, Martin in red and Geoghegan white- BRM P261 by two, Lotus 39, yellow nose Brabham BT11A, Lotus 32B of Palmer, red Brabham BT11A of Martin (all but the BRM’s Coventry Climax FPF powered) and Leo’s white Lotus 32 Ford. AGP- the off 20 February 1966 and what a marvellous vista Lakeside is…

The front row of the grid pretty much summed up the 1966 Tasman Cup, the two BRM P261’s driven by Hill and Stewart, two of the finest racers of their time were the class of the field powered by 1.9 litre versions of the ‘P56’ V8’s which won so many races during the 1961-1965 1.5 litre F1, they were quickest cars on the circuit throughout the weekend right from the first session on Friday having recorded laps of 55.5 and 55.8 for the Brit and Scot repectively.

Much of the pre-race press interest centred on the strong BRM presence which included three chassis ‘Graham Hill driving the same car with which he won the 1965 Monaco and US Grand Prix’ and a team of three mechanics, Rivers Fletcher doing public relations all led by Team Manager Tim Parnell- lets come back to BRM’s Australasian representation in a little bit.

Lakeside razzmatazz included girls dressed in chequered flag bikinis, a bagpipes group and a brass band in addition to the on-circuit attractions which included international drivers Clark, Hill, Stewart and Gardner.

David Harding, secretary of the Queensland Motor Sporting Club, quoted the total value of the cars at $A300,000…

Stewart had a huge points lead going into the Lakeside meeting with much expected of Clark after his first win of the series at Warwick Farm the week before.

In New Zealand Graham Hill showed BRM’s form early, winning the opening round, the NZ Grand Prix at Pukekohe on 8 January by 1.5 seconds from Stewart, in P261 ‘2616’ before returning home to the UK to continue tyre and other testing duties. He travelled back south arriving at Mascot for the first of the Australian races, the ‘Warwick Farm 100’, on 13 February.

Richard Attwood won at Levin the following weekend after Stewart had gearbox selector problems having completed 9 laps- Jim Clark was second and Spencer Martin third, Jackie Stewart continued the Bourne boys great form and won the Lady Wigram Trophy at the Wigram RNZAF base the following weekend of 22 January.

Stewart completed a clean sweep of the first four races for the P261 before crossing ‘The Ditch’- the Tasman Sea for Australia- Jackie won the Teretonga International from Frank Gardner and Jim Palmer- the latter had a great season of speed and reliability in the Lotus 32B chassis aboard which Clark took the Tasman Cup twelve months before.

Teretonga wasn’t such a great race for Dick Attwood, as his car ‘2617’, was tagged from behind in the first corner ‘The Loop’ into soft earth whereupon the it rolled trapping the hapless Brit underneath- Spencer Martin and local driver Ian Dawson, also involved in the melee, jumped from their Brabhams and helped marshalls right the car and release the driver.

In fact a ‘switcheroo’ in the cars of Jackie and Richard took place at Wigram. Attwood had his ‘2614’ going like a missile in practice thanks to some judicious testing of bars, tyre pressures and ride-heights with Alan Challis, at which point, Jackie, getting the hang of this Number One Driver caper in Hill’s absence said ‘I’ll have a crack in that’- and so he did winning The Lady Wigram Trophy’ in ‘2614’ the following day.

He kept the same car at Teretonga so the machine, the front bulkhead of which was badly bent, was off for a rebuild to Bourne. It was the car Jackie had raced throughout the 1965 F1 season- ‘2617’ the strength of which would save his life at Spa in mid-1966. We will come back to the individual chassis’ later in the article.

Whilst the drivers flew to Sydney on the Monday after Teretonga Tim Parnell supervised the shipping of ‘2614’ and ‘2616’ to Sydney whilst ‘2617’ headed back to Liverpool, and thence Bourne into the tender hands of the boys in the build shop.

Gardner at left, Attwood, Stewart- Brabham BT11A and two BRM P261s- the off at Wigram 1966. Stewart won from Attwood and Jim Palmer with Frank a DNF after an accident on lap 4 when his brakes failed and he cannoned into Jim Clark, taking them both out of the race (Wigram)

 

Under the Tote building, Pukekohe. JYS’ P261 chassis ‘2617’, in all of its elegant glory, 1966. Which of the BRM mechanics is it folks? The car is fitted with a P56 type 1930cc engine- inlets between the Vee and exhausts exiting thru the ‘letterbox’ orifice in the side of the monocoque, in BRM speak. Note the colour of the car, red nose band, big BRM badge and air relief ducts atop the nose and tail section leaning up against the wall (CAN)

At Warwick Farm Jim ran away and won by 21 seconds from Hill, Gardner, Stewart, Martin and Palmer, click here for a piece on that meeting; https://primotipo.com/2018/07/03/1966-warwick-farm-100/

Clark had carburetion problems with his 2.5 litre Coventry Climax FPF engine throughout the Lakeside weekend but still managed to pop the car onto row two of practice on the two by two car grid together with Frank Gardner’s similarly powered Brabham BT11A. The Lotus 39 was another mighty car from the Lotus 25/33 continuum but the good ole FPF was struggling a bit from 1966 given the entry into Tasman racing of the BRM and Repco V8’s.

Spencer Martin in the Scuderia Veloce BT11A, and Leo Geoghegan going like a jet in his Lotus 32 was the first of the ANF1.5 twin-cams, a mighty impressive performance on this power-fast-100mph lap average circuit.

Jim Palmer and Greg Cusack shared the next row and the rest- Bartlett, McDonald, Harvey, Andy Buchanan Denis Marwood, Mel McEwin and local boy Glynn Scott rounded out a small field after ‘CAMS cut the grid from 20 to 15 cars’ in the interests of safety.

Graham Hill alights his BRM whilst Spencer Martin’s Brabham BT11A Climax enters the paddock- Glynn Scott, Lotus 27 Ford twin-cam 1.5 approaches in the distance. This is the damp Saturday afternoon session (K Drage)

 

Clark in the very sweet Lotus 39 Climax on Saturday afternoon in the wet- exiting The Karussel (K Drage)

 

Lakeside 20 February 1966. Dunlop’s Vic Barlow at left, Hill suiting up and ‘Dobbin’ Challis beside Graham’s ‘2616’ whilst Jimmy Collins and Stan Collier look after Jackie’s ‘2614’ behind (BRM 3)

Sunday dawned cloudy and hot, the crowd got a magnificent days motor racing on this, the first occasion Lakeside held an AGP, for their four-dollar entry fee!

In addition to the feature race there were two 10 lap heats for the Tasman cars both won by BRM- Hill won the first from Gardner and Martin and Stewart took the second from the Clark and Geoghegan Lotuses.

Stewart and Hill settled into their front row grid slots and howled away from the off- Stewart, Hill, Clark and Gardner led the high speed train, then Martin, Palmer and Geoghegan.

Cusack got by Geoghegan on lap 5 with ‘Hill tied to Stewart as if by string’, Stewart set a scorching pace from the start, thrilling the crowd, despite this Hill was close behind and always within striking distance.

The race developed into three tough fights between Stewart and Hill up front, then Clark just ahead of Gardner and then a flying wedge of Palmer, Cusack and Geoghegan.

’The race pitch at this point had the crowd running from vantage point to vantage point, a rare thing in open-wheel competition, and to really set the seal on the excitement, the tail closed up and made a magnificent show as Marwood, Harvey, Buchanan, McDonald and Scott raced wheel to wheel’ Des White wrote in his HAGP race report.

Stewart’s gearbox cried enough on lap 28- it was this element of the BRM P261 which became its weak link at 1.9 litres and even much more so at the 2.1 litre capacity the Bourne team raced these cars in the 1967 and 1968 Tasmans.

’Stewart was very hard on gearboxes…Hill suffered persistent clutch slip in the last two races, but otherwise the BRM’s were very reliable. So they should have been too, with the massive Owen group effort which included a public relations man’ wrote Bill Tuckey. Bill is a bit hard on Jackie, the ‘box was the problem not JYS lack of mechanical sympathy.

Then Cusack clipped Palmer in the Eastern Loop when Jim braked a little early and Leo kissed Greg causing Cusack to spin and Geoghegan to re-enter the circuit 100 metres down the road- both retired with bent or busted suspension components shortly thereafter.

Frank Gardner in one of two Brabham BT11A’s Alec Mildren Racing raced that summer, Climax engined, the other was Maserati 2.5 V12 powered and ran in Warwick Farm and Sandown practice- pre-race hype promoted the Brabham Maserati at Lakeside but the car did not make the trip from Sydney (unattributed)

 

Jim Clark from Frank Gardner with Spencer Martin’s Brabham BT11A just back a bit- third, second and DNF clutch (autopics.com)

Frank Gardner was still pushing Jim Clark hard- he had a great summer in Mildren’s BT11A with better FPF reliability than some- but FG was mighty quick too, i’m not implying his results were solely due to reliability. Then Jim’s Climax took a turn for the worst- losing its edge further so Frank was through to second from Hill up front- Hill won at an average speed of 94.9mph from Gardner, Clark and Palmer.

Hill and Stewart both did equal fastest laps of 55.9 seconds- one second adrift of Clark’s 54.9 second lap record set in the Lotus 32B the year before. Kevin Bartlett’s Alec Mildren Racing Brabham BT2 Ford was the first of the ANF1.5s home in another drive which convinced Mildren KB was ready for the step up into the more demanding 2.5s- something he did with great aplomb later in the year.

Clark’s carburetion problems persisted throughout the series and were solved by John Sheppard when the car passed into his care after Leo Geoghegan acquired it by the simple expedient of solid carburettor mounts.

Jackie fires up the now ‘Central exhaust’ P68 powered ‘2614’ before heading out of the Lakeside paddock. Jimmy Collins, Vic Barlow and Tim Parnell watched by a group of local enthusiasts (BRM 3)

 

(HAGP)

Graham Hill nose up at Lakeside in a car that was so kind to him- the BRM P261, a machine with which he was synonymous, not the BRM he used to win his 1962 World Title but one he raced from 1963 all the way into 1966 with the H16 BRM P83 duly recognised.

 

BRM and The Antipodes 1966…

The Owen Organisation had extensive business interests in Australasia (it would be interesting to create a list of the British transnational’s subsidiaries in this part of the world at the companies height) and had of course raced here before- Ken Wharton thrilled Kiwi crowds in a P15 V16 in 1954 at Ardmore and Wigram and Ron Flockhart did all of the NZ Internationals in a front-engined P25 in 1959 whereas the 1961 campaign was a full works representation of two P48 mid-engined 2.5 litre F1 cars- these were raced by Graham Hill and Dan Gurney and on this occasion the visitors came to Australia as well as New Zealand. See here; https://primotipo.com/2019/11/18/ken-wharton-and-brms-grand-turismo-south-in-1954/ and here; https://primotipo.com/2018/03/16/bourne-to-ballarat-brm-p48-part-2/

The local promoters led by Ron Frost (NZ) and Geoff Sykes (Oz) had been doing their job in trying to seduce BRM back here and had a ‘red-hot go’ for 1965 given by that stage BRM had an 1880cc ‘P60’ version of their P56 V8, it was thought the P261 so powered would have been competitive with the 2.5 litre (mainly) Coventry Climax engined ‘Tasman Special’ Brabhams and Lotuses.

In essence Tasman races were 100 miles and had no minium weight limit whereas GP’s were 200 miles in duration and the cars had minimum weight limits so Ron Tauranac’s ‘Intercontinental’ Brabhams, for example, were designed and built to the Tasman formula or rules. Tony Rudd, backed by Graham Hill, felt the P261 at 1880cc would not be a competitive Tasman Cup mount in that the cars would be too heavy and not powerful enough- underlying their opposition (in a document reproduced by Doug Nye in BRM 3) was the (correct) belief that the Tasman program would detract from their 1965 F1 program in the same way Sir Alfred Owen’s BRM-Rover turbine Le Mans racer grabbed scarce resources in 1963 and 1964- it too was foisted upon Rudd and ORO (Owen Racing Organisation) at short notice.

However, in late 1965 Sir Alfred was resolute, the broader commercial needs of the Owen Group (the establishment of an Austin-Morris production facility in NZ, with Owens to provide the necessary components) were met by having ORO’s presence in the 1966 Tasman Cup and as a consequence the team had to ‘make it work’ despite being up to their armpits in the new for 1966, immensely complex, BRM P83’s H16 engine.

Ron Flockhart, BRM P25 during the 10 January 1959 NZ GP on the Ardmore airfield circuit- DNF oil leak, the race won by Stirling Moss’ Cooper T45 Climax FPF 2 litre (Ardmore)

 

Dan Gurney on the way to the BRM P48’s only International win, the Victorian Trophy at Ballarat Airfield, Victoria 12 February 1961 (unattributed)

Geoff Johnson and his engine design team squeezed the P56 V8 up again from 1880cc to 1916cc and then 1930cc- the latter became the definitive 1966 Tasman spec engine used throughout that summer.

These motors gave between 260 and 270 bhp, which despite the weight of the P261 chassis, was more than enough to trump the circa 240bhp ‘Tasman Specials’. These motors and P61 Mark 2 chassis ‘2616’ Graham’s regular 1965 F1 car first raced to a win by him upon its debut at Watkins Glen in 1964, Jackie in his normal ‘2517’, the last P61 built during the winter of 1964-5 for JYS debut season, and old ‘2614’, first raced by Graham in the 1964 Aintree 200 and used as the team spare throughout 1965 were sent to New Zealand on the SS Tasmania Star which left Liverpool on 29 November and arrived in Auckland on 23 December.

Of interest is that ‘2616’ lives as does ‘2614’ whereas ‘2617’ whilst destroyed and scrapped after Jackie’s death defying 1966 Spa crash was recreated for Richard Attwood as ‘2617R’ in the late nineties- a lovely bit of symmetry given Richard rolled it at Teretonga in 1966 when he was part of others ‘moment’. Finally, for the record, a total of one P61 Mk 1 was built, chassis ‘611’ and six P61 Mk 2’s- chassis ‘2612’ to ‘2617’. The P61 Mk1 ‘611’ was scrapped in 1963 but all of the P61 Mk2’s live, thank goodness.

Despite broken ring problems in testing at Bourne, with a very careful running regime when a motor was first used which involved abnormally large amounts of engine oil in the fuel- the motors proved very reliable throughout that summer- a bonus for Team Manager Tim Parnell and the mechanics- Allan Challis, Jimmy Collins and Stan Collier, the later seconded by Parnell.

One of the compromises made to meet the needs of preparation for the new 3 litre F1 as well as being competitive in Australasia was the appointment of Tim Parnell as Team Manager and secondment of Stan Collier into the ORO group for the trip rather than Tony Rudd and another BRM mechanic make the trip.

Son of Reg- Tim was a racer to the core who had stepped very ably from the cockpit to running his fathers F1 race team upon Reg’ sudden death in January 1964 and was well known to BRM as a customer using BRM V8’s and cars for some years.

And so the scene- cars, engines, drivers, technicians and team management were put in place for an immensely successful summer in competition and commercial terms- seven of eight championship rounds and nine of ten races won with the Tasman Cup secured by Jackie Stewart bolstering even further BRM’s ‘cub’ drivers confidence who had already won his first GP in his first F1 season of 1965 at Monza no less.

‘Technical Tim- plug changing on Graham’s ‘2616’. Very popular, avuncular Tim had spent his entire life in racing and farming- thanks to his father- former BRM V16 driver and pig-breeder Reg Parnell. Tim had been a racing driver before his father’s untimely death in 1964, whereupon he had taken over full-time management of Parnell Racing’ wrote Doug Nye (BRM 3)

 

(B Betti)

BRM V8 Engine Types/Designations…

I wrote an article about the ‘Stackpipe’ BRM P57/578 in which Bourne and Graham Hill won their 1962 titles and covers the P56 engine in a bit of detail which still stacks up ok, see here; https://primotipo.com/2016/02/05/motori-porno-stackpipe-brm-v8/

It is a bit wanting in terms of the ‘P56’ engine derivatives though, so, having picked over ‘BRM 3’ Doug Nye’s treasure trove of all things Bourne here is a summary of the motors if for no other reason than to provide myself a simple list to refer to the next time i tangentially cover this amazingly, long lived series of race engines.

‘P56’ 1.5 litre V8

Initial design as per the link above- 68.5mm bore and 50.8mm stroke for 1497.7cc. DOHC gear driven two-valve Lucas injected with ‘conventional’ cross flow disposition of inlet and exhaust valves

The engines first drawings of 300 in total were issued in January 1961, the first batch of components received in April 1961, assembly of the engine commenced that June with the first one fired up on 12 July 1961

170bhp was produced by the end of August with the engine first tested against the competition at Monza over that tragic September weekend. Racing began in 1962 with the ‘Stackpipe’ exhausts fitted- 185bhp

Ongoing development gave rise to the 195bhp ‘Monza’ spec which won the 1962 championship

For 1963 a single plane crank version was developed, this allowed the use of a coupled exhaust system which gave the engine a broader power band- with development this produced 205bhp

‘P60’ 1.9 litre V8 1964

1880cc engine developed at Richie Ginther’s suggestion for the 2 litre sportscar class in the US, in original form it produced 240bhp

P56 1.5 litre V8 ‘Stackpipe’ nestled in one of Graham Hill’s P57/578 chassis during 1962

 

P68 1.5 V8 in the 1964 Monza paddock

‘P68’ 1.5 litre V8 late 1964

Between the Vee exhaust layout- exhaust ports in the Vee, inlets located between the cam-boxes. The space around the engine was unobstructed by exhaust pipes which allowed a stiffer tub to be built and an extra 5 gallons of fuel to be carried

First appearance Monza 1964- first win at Watkins Glen- work over the winter of 1964-5 led to engines giving 215bhp

By the end of the 1.5 litre Formula the best of the engines gave 220bhp and weighed 264pounds

2 litre V8

1916cc and the ‘definitive’ 1966 Tasman engine of 1930cc in capacity

T56 variant gave 260bhp and T68 version 270bhp- both types were used in ORO’s successful 1966 Tasman campaign as close scrutiny of some of the photographs demonstrates

1998cc sportscar version for Matra in 1956 was P56 type with the taller P123 blocks. Fitted to MS620 coupes- these engines with alternators etc designated P100

One of the P261’s in the Warwick Farm paddock in February 1966- P68 1930cc (B Wells- The Roaring Season)

 

One of the BRM mechanics persuades the P56 2 litre V8 fitted to Peter Arundell’s works Lotus 33 to start during the 1966 US GP weekend at Watkins Glen. He was sixth in the race won by Jim Clark’s Lotus 43 BRM H16- famously that wonderful, complex, mad engine’s only win

P111: 2.1 litre V8

1967 Tasman and beyond specifications

Two engines built initially of 2070cc and gave 287bhp and 292bhp- used the taller P123 blocks

Six engines were converted by the time of the 1967 Tasman – 2 P56 type and 4 P68 exhaust within the Vee type. Engines very reliable, the weakness of the package was the magnesium cased lightweight  P72 six-speed gearboxes which were never designed with the power and torque- and tyre grip by then being produced

Type 80: 1.5 litre Straight-four cylinder Formula 2 engine

’Half’ of one of the 2 litre V8’s – soon gave in excess of 130bhp.

P80 1 litre, four cylinder F2 engine the size of which is ‘overwhelmed’ by the bulk of the P72 transmission

 

Etcetera…

 

(M Bisset)

JYS was ‘top of the pops’- on the cover of ‘Australian Racing Annual’ for 1966- these annuals are much treasured and were a useful pot-pourri of the season just gone, they were published by the ‘Sports Car World’ magazine people.

Shots show Stewart on the way to victory at Longford on the entry to The Viaduct, and wearing one of the many garlands popped around his neck that summer. The shot below is Jack in BT19 complete with brand-new Repco-Brabham 620 2.5 litre V8 also at Longford.

(autopics.com)

Graham Hill on the outside of Kiwi Dennis Marwood’s Cooper T66 Climax during the Sunday morning warm-up at Lakeside- DNF oil pressure in the feature race.

(unattributed)

Stewart and Clark off the front row of the grid during the second of the Sunday morning heats.

BRM P261 ‘2614’ and Lotus 39 Climax ‘R12’- they had some titanic dices during their Australasian summer but plenty of fun off-track and shared accommodation throughout, parsimonious Scots as they were.

(autopics.com)

Like a rat up an aqueduct- ‘2614’ from ‘2616’…

GH has his nose shoved right up JYS gearbox which is not helpful as that unit was the weakest link of an otherwise bullet-proof remarkably fast racing car into 1969 generally- and into 1968 specifically when the one P261 which was sent to Australasia- as a support or back-up car to the new P126 2.5 litre V12 was a very popular machine particularly with Pedro Rodriguez who took any excuse he could to pop his bum into the ‘old darlin’ rather than its much younger sister.

(D Cooper)

Pedro Rodriguez in good ‘ole ‘2614’ on the very last weekend a P261 was entered by the factory.

Rodriguez was second in the very soggy ‘South Pacific Trophy’ Longford Tasman round on 4 March 1968, won in fine style by Piers Courage in an F2 McLaren M4A Ford FVA 1.6.

A view is that the only thing between Graham Hill and another world title or so at the time was Jim Clark and the Lotus 25 and Lotus 33- lets make that the only thing between Hill and another title or so was Jim Clark’s God-given other-worldly skills- the gifts that only one driver seems blessed with every decade or so.

The Lotus 25 deserves every accolade accorded it as the first ‘modern monocoque’- the car to which every F1 machine which followed is related. The BRM P61 Mk1 and P61 Mk2 aka ‘P261’ followed the ‘original’ but in almost every respect, other, perhaps than in traction, putting its limited power to the road the BRM was the equal of the 25 and 33- and the BRM ‘P56 Family’ of engines the equal of, if not superior motor however many valves Coventry Climax deployed in its FWMV V8! Tony Rudd, biased as he undoubtedly was, makes this case on pages 232 and 233 of ‘BRM 3’.

Whatever the case, feast your eyes on all of the mechanical gubbins which comprise the whole of a very well rounded package. The car shown is Graham’s F1 P261 during the Mexican GP weekend in 1964- its powered by a P68 1.5 litre V8.

The chassis is an aluminium ‘full monocoque’ made of 18swg ‘half-hard’ duralumin with extension horns supporting engine/gearbox and rear suspension assemblies . Note the period typical inboard front suspension- lower wishbone and rocker actuating a coil spring/damper unit, brakes are solid 9 inch discs outboard- these are light cars remember, brake lines are rubber, we are still a couple of years away from the use of braided steel lines in Europe.

Distinctive BRM steering wheel- who supplied them? Gear lever at left. The engine we have done to death but note the slide Lucas fuel injection, beautiful expressions of the exhaust pipe benders art- you can just see a heat shield beside the radiator cap to keep the hot gasses away from the fuel metering unit which is right behind the roll-over bar.

The rear suspension is again period typical and in contrast to the front is fully ‘outboard’- magnesium uprights, inverted lower wishbone, single top link, twin radius rods to look after fore and aft forces, coil spring/dampers and adjustable roll bars both front and rear. Plumbing for the needs of lubricants is ‘bitsy’ rather than ‘cohesive’ and the lack of shine to the nickel (?) plating doubtless reflects a long hard season- this was the last championship meeting of the year after all. Note the beautifully made splined driveshafts, solid brake rotor and caliper.

I’ve always thought BRM’s gearboxes- i’m not sure if this is a six-speed Type 62 or 72 look a bit butch compared with Mike Hewland’s products of the time but that may not be the case upon having details of said products dimensions and weight. Whilst the boxes’ were the weak link in P261s powered by 1.9 litre V8’s and above that was not the case when 1.5 litre V8s were used which was of course the engine around which the gearboxes were designed at the outset.

Beautifully concepted, designed and built, robust, prodigiously fast cars the performance of which could be accessed by ‘newbees’ and exploited by ‘the gods’ alike.

 

(S Dalton Collection)

 

(S Dalton Collection)

Stephen Dalton contributed these pages from the February 1966 Queensland Motor Sports Club newsletter which gives the organisers perspective- note the attention to O,H & S as Stephen points out!

Photo Credits…

‘HAGP’- ‘History of The Australian Grand Prix’ Graham Howard and Others, Kevin Drage, ‘Ardmore’, autopics.com, M Bisset Collection, Getty Images- Bernard Cahier, Alvis Upitis, ‘CAN’ Classic Auto News, BRM 3, Dennis Cooper Collection

Bibliography…

‘Australian Motor Racing Annual 1966’, ‘BRM 3’- ‘BRM: The Saga of British Racing Motors Volume 3’ Doug Nye, various articles by Ken Blair in ‘The Canberra Times’ on 8, 15 and 21 February 1966, Bruce Sergent’s race reports on sergent.com, ‘History of The Australian Grand Prix’ Graham Howard and Others, 1966 Tasman Cup review by Allan Brown in oldracingcars.com

Tailpiece: Clark, Lotus 39 Climax, Lakeside 1966…

(unattributed)

Jim gulps a big dose of Queensland air as he snicks a Lakeside high-speed apex.

Finito…

 

(D Cooper)

Antipodian enthusiasts can argue the toss but I think the 1968 Tasman was about as good as it ever got…

Here Clark, Amon and Hill- Lotus 49 Ford DFW, Ferrari Dino 246T and 49. Two Cosworth V8’s and a Maranello V6. There were a swag of Repco V8’s of different configurations, BRM V8’s and V12’s- Len Terry’s new P126 was blooded in the Tasman in advance of the F1 season, Alec Mildren’s Brabham BT23D Alfa Romeo using a 2.5 litre variant of the Tipo 33 sports prototype V8, plus cars using the good ole Coventry Climax four cylinder FPF.

As good as it gets in terms of variety of cars and drivers- in addition to the fellas on the front row of the dry, preliminary, Saturday race we had Jack Brabham, Denny Hulme, Bruce McLaren (in NZ), Frank Gardner, Pedro Rodriguez, Piers Courage, Richard Attwood…apart from the local hotshots.

Clark and Hill raced 49’s ‘R2’ and ‘R1’ during their 1968 tour down south.

Hill had mainly raced ‘R1’ since the 49’s race debut at Zandvoort on 4 June 1967. He joined Team Lotus in Australia whereas Jim did the full eight weeks and had almost exclusively raced ‘R2’ from his first up win in the chassis amongst the Dutch dunes. Motors fitted for the Tasman were Cosworth’s 2.5 litre variant of the 3 litre Ford DFV dubbed ‘DFW’.

(D Cooper)

Jimmy has a tyre issue he is sorting with the Firestone man.

The fag packet Gold Leaf Players livery is new- the cars were green and gold at Pukekohe and Levin and red, white and gold at Wigram only a month or so before Longford, as shown in the Wigram front row photograph below. That’s Denny’s F2 Brabham BT23 Ford FVA behind Jim in the Longford pitlane.

(B Wilson)

Clark has won his last championship GP by this stage, the South African at Kyalami on New Years Day, 1 January 1968, he won at Sandown the week before Longford on 25 February taking the Australian Grand Prix, his last, from Chris in a ‘thriller-driller’ of a race which could have gone either way right to the finish line.

Racing’s tectonic plates shifted with his Lotus 48 Ford FVA F2 death in Hockenheim only months hence.

(D Cooper)

In a tour de force of leadership Graham Hill picked up Team Lotus lock, stock and barrel and drove the team forward as Colin Chapman regained his composure and focus after the death of his great colleague and friend.

No seatbelt in Graham’s car above, there would be by seasons end.

No wings either, there would be by mid-season, 1968 was a year of change in so many ways.

Wings here; https://primotipo.com/2015/07/12/wings-clipped-lotus-49-monaco-grand-prix-1969/, and in more detail, here; https://primotipo.com/2016/08/19/angle-on-the-dangle/

Chris loads up in the Longford paddock. That’s Denny’s Brabham BT23 Ford FVA F2 atop the Alec Mildren Racing transporter behind (D Cooper)

The Scuderia Ferrari presence, or more precisely Chris Amon’s single Ferrari 246T raced under his own banner raised enormous interest, the great Kiwi did not disappoint either- and of course came back the following year with a two car squad and won.

In Australia we got a double 1968 whammy in that David McKay acquired one of the P4/Can-Am 350 Group 7 cars for Chris to drive in the sports car support races.

Frank Matich served it up to him big-time in one of his Matich SR3 Repco 4.4 litre V8’s, disappointingly Matich did not cross Bass Straight for this meeting so Chris set the fastest ever lap of Longford despite not being pushed by the oh-so-fast Sydneysider.

(D Cooper)

The gleaming Ferrari Can-Am 350 Scuderia Veloce raced all too briefly throughout Australia in 1968 by Chris Amon, and Bill Brown upon the Kiwis departure back to Italy and all points beyond.

(D Cooper)

Auto-erotica.

With the 1967 Manufacturers Championship over Ferrari modified two of the P4’s, this car, chassis ‘0858’ and ‘0860’ to better compete in the Can-Am Championship and naming them ‘350 Can-Am’ to contest the prestigious series in their most important market.

The cars were lightened considerably becoming curvaceous Spiders instead of even more curvaceous Coupes! Weight was reduced from 792Kg wet to 700Kg wet, engine capacity was increased to 4176cc raising the engines power to 480bhp @ 8500rpm.

It wasn’t enough to compete with the McLaren M6A Chevs of Bruce and Denny, that story is told in this article about the Ferrari P4/Can-Am 350 and ‘0858’ specifically; https://primotipo.com/2015/04/02/ferrari-p4canam-350-0858/

Credits…

Dennis Cooper, Historic Racing Car Club of Tasmania, Bruce Wilson

Tailpiece: Look at the crowd…

(D Cooper)

Talk about missing out…

Finito…

(R Dalwood)

Frank Matich, Brabham BT7A Climax leads Jim Clark’s works Lotus 32B Climax into Pub Corner at Longford in March 1965. A ‘take your breath away shot’, composition and execution by Reg Dalwood is something special…

I suspect this is lap 2 with the leading trio of McLaren, Brabham and Hill further up the road. Behind Jim are Bib Stillwell and Frank Gardner in Brabham BT11A’s, Jim Palmer in a BT7A and then at the rear of the group Phil Hill, Cooper T70 Climax.

Bruce McLaren won this race, the Australian Grand Prix in his Cooper T79 Climax from Jack Brabham’s and Phil Hill in the other Bruce McLaren Motor Racing entry- the updated T70 Cooper driven by Bruce and the late Tim Mayer in 1964.

(HAGP)

Bruce wheels his Cooper T79 around Longford in 1965 hiking his inside right wheel.

These Cooper T70/79 cars are acknowledged now as the ‘first McLarens’ designed and built as they were at Coopers by Bruce and mechanic/technician Wally Willmott. The story of them is here; https://primotipo.com/2016/11/18/tim-mayer-what-might-have-been/

Ron McKinnon gives McLaren and Clark a ride in the sponsors Spitty at the end of the race (B Short)

 

Hill at left, white car McLaren with Jack and Jim in the next row of two (B Short)

McLaren started the race from pole with Brabham, Graham Hill, Clark, Gardner and Matich behind.

Very sadly, this was the race in which Rocky Tresise died after losing control of the Ecurie Australie Cooper T62 Climax. As most of you know this was a double disaster for the Davison family as Lex died of a heart attack at Sandown whilst practicing his Brabham BT4 the weekend prior. The Rocky Tresise story is here; https://primotipo.com/2016/05/20/bruce-lex-and-rockys-cooper-t62-climax/

I’ve a feature brewing on this race so won’t go into all the detail just now, but rather make use of some of the many images of this AGP floating around on the internet- too many for one article.

In some ways Longford 1965 marked ‘the end of the beginning’ of the Tasman Series in that 1965 was the last year of the dominance of the long-lived Coventry Climax FPF engine.

The world championship winning engines of 1959-60 had pretty much ruled supreme in Australia from 1959 through to the end of Formula Libre in December 1963 and to the commencement of the Tasman 2.5 Formula from 1 January 1964.

In 1966 the BRM V8’s made their successful Tasman debut and at the end of the series- Sandown and Longford the first of the Repco ‘RB620’ 2.5 V8’s took their bow in Jack’s BT19.

(B Short)

Two nut brown Aussie summer kids and the equally well-tanned Oz Lotus works mechanic Ray Parsons push Jim Clark’s Lotus 32B Climax through the Longford paddock.

The Clark/Lotus combo were the class of 1965- Jim’s four of seven Tasman round victories was a precursor to a season which included an Indianapolis 500 win aboard a Lotus 38 Ford and his second World Title in Chapman’s Lotus 33 Climax. Not a bad year really!

Click here for an article on the 1965 Tasman Series; https://primotipo.com/2017/11/02/levin-international-new-zealand-1965/

(K Drage)

Kevin Drage’s shot of the front row of the Longford grid- McLaren, Cooper T79 Climax, Brabham and Hill both in Brabham BT11A Climax’.

He has an amusing anecdote about Bib Stillwell, Matich’s big rival and his reaction to FM’s speed that weekend.

‘One story I remember from this meeting is Bib’s frustration in not being able to match Frank Matich’s lap times during practice. I was helping Gerry Brown to pit crew for Bib at this meeting and Bib was even wondering if Frank had slotted in the 2.7 engine from his (Cooper Monaco) sportscar into the Brabham just for practice to give everyone a bit of a stir up. He even asked me to see if I could “manage” to go over to the Matich pits to checkout the engine number.’

(unattributed)

Matich during the parade lap at Warwick Farm before the 1965 Tasman round.

FM started the ‘Warwick Farm 100’ from pole- in front of Hill, Clark, Brabham, McLaren and Gardner which rather puts the Sydneysiders pace into context. He led most of the first lap, ultimately finishing third behind Clark and Brabham.

(oldracephotos.com.au)

Brabham in the Longford paddock getting his BT11A race ready.

Ron and Jack’s Intercontinental Brabhams were supreme racing cars in conception, design and execution. Drivers of the BT4, BT7A and BT11A of varying ability won plenty of motor races in these cars right through towards the end of the sixties. Click here for a piece on these cars; https://primotipo.com/2018/07/20/matich-stillwell-brabhams-warwick-farm-sydney-december-1963/

Clark in the Longford paddock, Lotus 32B Climax

Credits…

Reg Dalwood on the Historic Racing Car Club of Tasmania website, oldracingcars.com.au, Kevin Drage, Ben Short, HAGP- ‘History of The Australian Grand Prix’ Graham Howard and others, Stephen Dalton Collection, Perry Drury, Ian Smith Collection

Etcetera…

(oldracephotos.com/JEllis)

Brabham, Hill and Clark enter the circuit, the crowd big enough for raceday. Looking back down the road 500 metres or so are the distinctive big pine trees of Mountford Corner. Brabham BT11A by two and Lotus 32B.

(oldracephotos.com.au)

It may not have been the latest bit of kit, but, continuously modified by Matich and his team his year old car was well and truly as quick as the latest BT11A or anything else on the grid.

Small crowd above suggests ‘IC-1-63’ is being pushed onto the track for practice or the preliminary on Saturday. Graham Matich is steering, it’s Geoff Smedley with his head down at left, who is the other fella I wonder?

(B Short)

The Touring Car grid ready to start- Le Mans style with the ignition key handed from mechanic to driver- can anybody help with car/driver ID.

Check out the crowd above the pits, access bridge and all the fun of the fair.

(I Smith Collection)

The intense concentration is there but otherwise Jack looks relaxed in the cockpit- key to feel what the BT11A is doing of course.

Shot is taken from atop The Viaduct- a classic shot from this locale, this one has been executed beautifully and shows both Brabham’s ‘form’ as well as the lines and simple, period typical suspension of this oh-so-successful series of ‘Intercontinental’ Brabhams.

All of the shots of this car in the article are a different hue of green, i wonder which is closest to the real McCoy?

Tailpiece…

It’s a butt shot isn’t it.

From the left is the beautifully formed derrière of the lady, such a shame to miss out on the rest of her with a thoughtless crop. Then there is the rear of the FC Holden Wagon and the old bloke standing behind it.

The racer is Jack’s Brabham BT11A Climax ‘IC-5-64’ resting in the paddock after it’s hard won second place.

And finally the rear of an EJ Holden Panel Van.

Atmospheric isn’t it?

(P Drury)

Same scene, same time, same place- whilst Perry Drury was taking this shot Ben Short was standing opposite him taking the one above. Jack’s Brabham and Jim’s Lotus and the EJ Wagon…

Finito…

Jim Clark’s Lotus 49 Ford DFW 2.5 on the downhill plunge towards The Viaduct…

Its not the sharpest of images but an interesting one given the ‘different angle’ and Stephen Dalton’s narrative which goes with it.

‘Its Monday March 4 1968, Longford- playing in the rain on his 32nd birthday. After a few laps of mucky weather he is possibly wishing he could whip through the Mountford property gates and have a nice warm cuppa and some birthday cake’ with Ron MacKinnon, the President of the Longford Motor Racing Association.

‘The photo is coming down the hill from the Water Tower to The Viaduct- they are literally the gates to Ron MacKinnon’s Mountford (pastoral) property’ Stephen adds.

I wrote a feature about this race weekend a while back, the highlights of which were perhaps Chris Amon’s exploits in David McKay’s ex-works Scuderia Veloce Ferrari P4/350 Can-Am machine and Piers Courage’s win in the South Pacific Trophy, the very last motor race ever held at Longford in a European F2 McLaren M4A Ford FVA. Click here to read it;

https://primotipo.com/2015/10/20/longford-tasman-south-pacific-trophy-4-march-1968-and-piers-courage/

Credit…

Stephen Dalton

Tailpiece: The start…

Finito…

John Surtees, the reigning World F1 Champ, aboard his Cooper T75 BRM P80 during the ‘London Trophy’ weeekend at Crystal Palace in June 1965…

He was a busy boy that year, fitting in F2 races around his primary programs for Ferrari in F1 and Endurance events.

Ken Tyrrell entered two Coopers that weekend, the other for Jackie Stewart, above, very much on his career ascent- he scored his first GP win with BRM that season at Monza in September aboard a P261 after a great dice with his teammate Graham Hill.

Surtees, Cooper T75 BRM

The London Trophy comprised two heats of 25 laps, the top four in each race were the same, Jim Clark, Lotus 35 Cosworth SCA, Graham Hill, Brabham BT16 BRM, Richard Attwood, Lola T60 SCA and Jochen Rindt, Brabham BT16 SCA.

(Getty)

The off, Heat 1.

Stewart at left and Clark right, Brabham on the inside of row 2.

Clark won both heats, the Tyrrell Coopers had problems in this heat which were fatal for their chances of a start in the second race- Stewart had half-shaft failure after completing 16 laps and a rod let go in the BRM engine after 21 of the 25 laps in Surtees case.

There was plenty of depth on the grid, other starters included Mike Spence, Trevor Taylor, Chris Amon, Denny Hulme, Jack Brabham and Peter Revson with the DNQ list including Jo Siffert, David Hobbs and Chris Irwin.

Credits

Getty Images

Tailpiece: Jim Clark, Lotus 35…

Jim Clark aboard his Lotus 35 SCA, final chat to his mechanic who has a tyre pressure gauge at the ready. I’m not sure this is Crystal Palace, if it is, the car behind is Bill Bradley’s Brabham BT10 SCA.

Finito…

image

Jack Brabham looking very comfy in his Brabham BT20 Repco with ‘lightweight’ head-cam attached during practice at Watkins Glen in 1966…

When looking at this shot it’s amazing to reflect on such equipment, every man and his dog have ‘GoPros’ to capture their sporting triumphs these days whatever they might be.

What Jack was up to is interesting, and not covered in the MotorSport report of the race. ‘Grand Prix’ was released on 21 December 1966, the date of this footage is the Watkins Glen weekend of October 1/2 that year.

Given James Garner’s presence is this some late footage for the classic which would have been in the final production stages or some other sort of promotional activity?

I’m interested to know from you ‘Grand Prix’ anoraks or any of you who were there.

image

image

Brabham, Bandini and Surtees at the start. Brabham BT20 Repco, Ferrari 312 and Cooper T81 Maserati respectively (Upitis)

Jacks car is not his regular 1966 mount, the one-off 1965 BT19 chassis but rather a BT20, the 1966 F1 design raced by Denny throughout the year.

Brabham put the Repco V8 engined car on pole, a good effort as he was experimenting with both Lucas and Bosch ignition systems during practice which hampered him putting sequences of quick laps together.

He led the race convincingly until a cam follower broke, jamming the camshaft and breaking its drive chain. Jim Clark lead from that point, lap 55 in the Lotus 43 BRM. The engine of Jim’s car, BRM’s spare, was still being fitted and finessed right up to the start of the race.

It was a famous win, the H16’s only victory and ironic that the complex, heavy, powerful lump was in the back of a Lotus rather than the BRM chassis the Bourne boys had laboured so long and hard to perfect. Tony Rudd’s mob deserved the win more than Chapman’s but that’s motor racing! Cooper Maserati were second and third, Rindt in front of Surtees after the 1964 World Champs T81 tangled with Peter Arundell’s Lotus 33 Climax early in the race.

Click here for an article on the Lotus 43; https://primotipo.com/2015/02/17/jim-clark-taking-a-deep-breath-lotus-43-brm/

Clark heads to the dummy grid whilst Richie Ginther walks behin- #5 is the nose of Jack’s car

Credits…

Alvis Upitis

Tailpiece: Jack being plumbed for the camera before the off, the new World Champ has everything to smile about…

image

Finito…