Archive for February, 2017

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The big F3  field gets away on the first lap of of the 1967 ‘Coupes de Vitesse’ on 2 April. Pau such a spectacular race locale…

The race was won by Jean-Pierre Jaussaud from Roby Weber both in works Matra MS6 Ford Cosworth’s, Peter Gethin was third in a Brabham BT21 Cosworth. The field had plenty of talent including Derek Bell, Patrick Depailler and Tico Martini. Amongst the non-qualifiers were Patrick Depailler and Jean-Pierre Jabouille. Their speed would improve!

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The shot above shows green helmeted Henri Pescarolo in another works Matra MS6 having a territorial dispute with Mauro Bianchi in a works Alpine A310 Renault. Henri won the French F3 Championship that season from Jaussaud.

Credits…

Jean Tesseyre

Tailpiece: Frantic Pau…

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Weber from Jausaud, Gethin, Chris Williams and the nose of Pescarolo. Matra MS6 x 2, Brabham BT21 x 2 and Matra MS6 (Tesseyre)

 

 

58 british

(Allan Fearnley)

Mike Hawthorn and Peter Collins looking confident with the speed of their Ferrari Dinos prior to the Silverstone start…

Into 1958 the relationship between Enzo Ferrari and Peter Collins had soured a bit as the chief felt the Brit was not as competitive as he had been, he was dropped to the F2 team at the French GP. Mike Hawthorn’s intervention and Luigi Musso’s death at Reims made his position more secure. Nevertheless he was feeling plenty of pressure at the time…

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Peter Collins takes his last win, Silverstone 1958, Ferrari Dino 246 (unattributed)

Collins started the British GP from 6th on the grid, with Moss’ Vanwall on pole, but Collins blasted through from the second row to lead Moss, Hawthorn, Schell’s BRM P25, Brooks Vanwall VW57 and Salvadori, Cooper T45 Climax.

Collins increased the lead steadily with Moss and Hawthorn comprising the lead group. Stirling’s engine blew on lap 26 leaving Peter leading from Hawthorn. Stuart Lewis-Evans was 3rd but was soon passed by Salvadori. Collins won from Hawthorn, Salvadori and Lewis-Evans’ Vanwall VW57, four Brits!

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Peter Collins being congratulated aboard his Dino after the event. Its July 19, he was dead 3 weeks later, Nurburgring on 3 August (Hutton)

Credit…

Allan Fearnley, Hutton Deutsch

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(Popperfoto)

Engineers building a production run of these very successful T20/23 series of cars which were important in helping launch the careers of Mike Hawthorn and Jack Brabham amongst others. And positioning Cooper as just not builders of 500’s…

The photos were taken in Cooper’s Surbiton workhop in early 1953, the cars are the CB Mk2 or T23.

The essential difference (there were other improvements as well) between the T20/23 is that the latter used a spaceframe chassis, clear in shot, the earlier car a more traditional box section frame. Note the stack of frames, not yet stove-enamelled on the lower right of the shot.

I wrote an article about the T20 a while back so I won’t repeat myself, click here to read it;

https://primotipo.com/2015/02/10/stirling-moss-cumberland-park-speedway-sydney-cooper-t20-wm-holden-1956/

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Australian Gold Star Champion 1959, Len Lukey’s Cooper T23 Bristol (chassis CBR/2/9/53)  pictured at Mt Druitt, a circuit west of Sydney on 25 May 1958, the car did a 13.53 seconds standing quarter to take FTD. Shot shows the handsome lines of these cars to rather good effect as the gent looking on would attest. Later fitted with a Holden 6 cylinder engine, restored, for a time part of the Donington Collection and still extant (John Ellacott)

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The workshop shots are great, the unclothed cars show the Bristol engine, the chassis and the suspension mix of wishbones and transverse leaf springs front and rear.

Cooper were somewhat maligned over the years about their ‘curvy spaceframes’ by engineering purists but in comparison with other cars of this period, the Cooper is a paragon of modernity if not a perfect example of triangulation!

Doug Nye credits Dante Giacosa’s design of the 1946 Cisitalia D46 for Piero Dusio, as the first modern customer spaceframe car ‘the production racing car trendsetter for an entire generation of designers’.

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Cisitalia factory drawing of the D46 voiturette and its lovely, stiff spaceframe chassis, Fiat 1100cc 62bhp OHV engine. Suspension F/R lower arms/live axle with transverse semi-elliptic springs front and rear, hydraulic drum brakes. Drivers of the cars included the elite, Tazio Nuvolari and down

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Robert Manzon’s 14th placed Cisitalia D46 during the 330Km GP du Comminges, St Gaudens 0n 10 August 1947. Race won by Louis Chiron’s Talbot Lago ’39. The caption with this shot simply says ‘1947 French GP’, which it is not. I have arrived at the above driver/car/event by elimination, some French readers will be familiar with the background, the other hint is the ‘team badge’ on the cars side, let me know if i am wrong or right for that matter! (GP Library)

As stated above the Cooper Bristol Mk1 (T20) used a simple fabricated box-section single plane-ladder frame with tacked on body supports and was very successful.

John Cooper and Owen Maddock’s (Cooper designer/engineer/draughtsman) 1953 Mk2/T23 used a multi-tubular frame which took advantage of the entire cross-sectional area available inside the body ‘and looked more like what would become known as a ‘spaceframe’ design though still sparsely triangulated…this new welded-up chassis frame employed all the same sized round section tube, and it was effectively the forerunner of many more British GP cars ‘spaceframes’ to follow’ Nye said.

So, if the car isn’t the trendsetter Giacosa’s was the Cooper lads were certainly spaceframe ‘early adopters’, very successfully so.

Note the beautiful light alloy Cooper wheels, rudimentary independent rear suspension set up of lower wishbones and top transverse leaf spring which would serve Cooper well till the end of the decade. Double wishbones and coil springs at the front appeared a bit earlier but the transverse top leaf is in use here.

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New Cooper T23 on what is perhaps its first test at Goodwood in late ’52 or early 1953, triple Solex fed 1971cc circa 155bhp spec engine as per text. Frame, neat throttle linkage and beautiful hand formed aluminium body also clear in shot (Popperfoto)

The Bristol/BMW engine develops around 155bhp from its 1971cc in BS4A spec, the engine is worth a paragraph or two. What follows is a summary in relation to the engines race application, not a chronology of the many variants fitted to road cars.

As demand for aircraft and engines eased towards the end of WW2 the Bristol Aeroplane Company decided to diversify into cars. The history of this great company is interesting, click here to read about it; http://www.bristolaero.org/bristol-built/

One of its directors, HJ Aldington, had impeccable BMW connections, another of his companies, AFN Ltd were both the constructors of Frazer Nash cars and the pre-War importers of BMW. The 2 litre engine the subject of this article, was fitted to BMW’s superb 328 sports car, famously the winner of the 1940 Mille Miglia in Huschke von Hanstein’s hands..

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BMW 328 on Avus’ North Curve, Germany on 19 May 1938, driver and event unrecorded (Ullstein Bild)

In the post-war German mess, der Deutschlanders were keener for their technology to be shared with the ‘goodies rather than the baddies’ (the Ruskies), Aldington did a deal via the War Reparation Board which gave the engine technology to Bristol. The Brits fitted the engine to a 326 chassis and dressed the lot in an aerodynamic body similar to the 327 ‘Autenreith’ Coupe.

The first Bristol built engine was fired up on their dyno on 22 May 1946 and was soon fitted to its prototype ‘400’ car.

The engine was tall, slim and short despite its long stroke. The bores were cleverly siamesed within the cast iron block to allow the use of 4, rather than the 7 main bearings considered normal for a straight-six. The head had hemispherical combustion chambers with valves inclined at an included angle of 80 degrees with downdraught inlet ports between them.

Rather than twin overhead camshafts the valves were operated by 18! inclined cross-pushrods. For its success it demanded great engineering precision in its build, something Bristol had in spades. A steel crank ran in Vandervell ‘ThinWall’ lead indium bearings. Dry cylinder liners were of Brivadium alloy-steel so hard that for racing Bristol didn’t consider them run in until the engine had done 8000 miles!

After fitment of three downdraught SU carbs the ’85A’ engine developed 80bhp. The ’85C’ was fitted with three Solexes.

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Bristols; Type 171 Sycamore helicopter and 401 Coupe in 1950 (Hutton Archive)

In 1948/9 Aldington asked Bristol to develop a high performance variant for Frazer Nash, this ‘FNS’ (Frazer Nash Specification) unit with 0.15 larger inlet ports, improved crank counter weights, Delco-Remy distributor rather than the Lucas unit developed 126bhp @ 5500rpm. In the FN Le Mans Rep the engines were very successful.

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The 8th placed Bristol engined Frazer Nash Le Mans Replica of Dickie Stoop and Peter Wilson about to be swallowed by the winning Aston Martin DB3S with Reg Parnell at the wheel, he shared with Eric Thompson, during the Goodwood 9 Hours 22 August 1953 (GP Library)

Encouraged by the Frazer Nash success, Bristol built a new ‘Bristol Sport’ (BS) engine based on the ‘403’ Type 100 spec engine. These had blocks cast in chrome alloy steel. With a 66mm bore and 96mm stroke they displaced 1971cc.

The head was aluminium alloy with inlet valves made of chrome-nickel steel, exhaust valves of austentic-chrome steel. All of the valve gear was very light and polished. The crank was in aviation spec nitriding steel still running in 4 main bearings. A short duplex chain drove from the cranks nose to the high camshaft which ran in four bearings and carried a skew gear driving the distributor and oil pump shafts. High pressure lubrication was used but a wet sump retained. On ‘BS Series’ engines the head was ‘ported and polished’.

These engines, the Mark 2 version used by Mike Hawthorn’s Lavant Cup winning Cooper T20 at the Goodwood Easter 1952 meeting developed 149.8bhp@5550rpm on the Filton dyno before Leslie Hawthorn deployed his secret ‘witches brew’ of nitro-methane to produce more power still.

The ‘BS4A Mk1’ engines  developed 155bhp@6000rpm and 148lb/ft of torque at 5000rpm.

Ultimate versions of the German/British engines were Cooper Bristol driver/engineer Bob Gerard’s de-siamesed port 2.2 litre variants running nitro-methane which developed 180bhp@7000rpm. Bristol’s own de-siamesed engine which ran at Le Mans in its Coupes developed a reliable 160bhp. By that time the 2 litre F2 racing for which these engines were developed was over.

The Cooper Bristols were important cars in the rise of the Surbiton marque and formidable weapons in the right hands if not Ferrari Tipo 500 beaters…

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Cooper T23 Bristol being unloaded from its trailer on a bleak, winter Goodwood day in late 1952 or early 1953. 85km trip from Cooper’s Surbiton ‘shop to Goodwood. These shots (of the mechanics fettling the engine above and the two below) are undated other than 1 January 1953 which will be an approximation, there are no details of the mechanics or driver. My guess is that its a Cooper instigated press shoot, as are the workshop ones above, probably of the cars first test, the ‘stub exhausts’, these engines not usually raced as such, indicative of a ‘quick fix’ overnight to run the car for the first time. If any of you have the details please provide them and i will update the text (Popperfoto)

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Bibliography…

Doug Nye ‘History of The GP Car’, Automobile Year, John Blanden ‘Historic Racing Cars in Australia

Photo Credits…

Popperfoto, John Ellacott, GP Library

Tailpiece: John Cooper, but its just a guess…

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Bob Wollek with no time for the fun park during the Le Mans classic, 17 June 1984…

The aluminium monocoque car was powered by a Ferrari 308C V8 and finished in 8th place, his co-driver Sandro Nannini, the best placed of the Lancias 34 laps behind the winning Porsche 956B of Klaus Ludwig and Henri Pescarolo. The  dominance of the 956/962 extended into the early 1990’s.  

After the 1955 grand prix season Lancia couldn’t afford its motor racing program, in fact Gianni Lancia lost control of the family company as a result of his profligacy! He and Vittorio Jano built some of the most fabulous racing racers ever built, he just couldn’t afford to do so! Lancia competed with great success in rallying with its Fulvia and later fabulous Stratos’ in the 1960 and 1970’s.

Lancia re-entered road racing with the 1982 Group C LC1, a spyder bodied car powered by a 1.4 litre turbo-charged 4 cylinder engine, it was eligible under the equivalence rules for the 2 litre class, which it won at World Championship level in 1979-81

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For 1982 Lancia decided to contest the outright class getting Gianpaulo Dallara to design a ground-effect, aluminium monocoque racer powered by a race variant of Ferrari’s 308QV engine, the 4 valve V8 fitted to its Dino road car.

Fitted with 2 KKK turbo’s and Marelli fuel injection the Abarth developed 84X68mm, 3014cc V8 developed circa 800bhp @ 8800rpm. Suspension was conventional wishbones, coil spring/dampers and adjustable roll bar front and rear. Brakes were cast iron discs, the gearbox a Hewland 5 speed.

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Wollek’s Lancia LC2-84 chassis ‘005’ during 1984 Le Mans scrutineering (Harmeyer)

Porsche developed a stranglehold on Group C with a combination of the speed of its works 956/962’s and a vast array of customers, Porsche masters of the ‘customer racing car art’ won with the 956 from ’82-85, with the 962 in 1986/7 and then with the Dauer 962 in 1994. Quite a run of success.

Lancia’s best chance at Le Mans during the three years they raced the cars was in 1984; Porsche was having a spat with the ACO over fuel regulations and boycotted the race but 7 private 956’ were in front of the Lancias at the finish… Wollek set the fastest race lap but he and Nannini had gearbox troubles during the race which slowed them significantly.

The LC2, 9 of which were built, warrant a feature article, for now this is a quickie, in 3 years of competition the team won 3 races of championship status.

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Wollek/ Nannini LC2 during the race, aero treatment and lines of the car in contrast to the Porsche 956/962 (Martin Lee)

Etcetera: LC2-84 ‘005’ in scrutineering and during its race to 8th place, behind seven 956’s of varying spec…

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Credits…

silhouet.com, Rainer Schlegelmilch, Bob Harmeyer, Martin Lee, Dale Kistemaker

Tailpiece: Wollek rockets his Lancia away from pole, behind is teammate Paolo Barilla, speed of these cars seldom in question, longevity a different thing…

le mans start

 

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Jack Brabham willingly takes his go-faster pill from the lovely Goodyear fräulein…

It’s just before the 1966 German Grand Prix, Jack won the race in his Brabham BT19 Repco on 7 August from John Surtees and Jochen Rindt aboard Cooper T81 Masers.

Jack was right in the middle of the mid-season purple patch which gave him the title; from 3 July to 7 August he won the French, British, Dutch and German GP’s on the trot.

Goodyear were a very important part of Brabham Repco’s win that year. Jack was in F1 with them from their start in F1, 1965, and was still winning races with them in 1971.

Brabham’s last race win was aboard a Goodyear RR12 shod Bowin P4X Formula Ford ‘Race of Champions’ victory at Calder, Australia…

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Bob Jane was always a clever promoter, the champion racer/entrepreneur and Calder circuit owner decided upon a ‘Race of Champions’ amongst the Australian aces of the day to get a few more bums on seats at his 15 August 1971, cold and chilly winter meeting. Look at the crowd!

The just retired, for a while anyway, Jack Brabham was happy to accept the invitation to compete. It just so happened his Ford Dealership in Sydney sponsored Bob Beasley in a Bowin P4 in that years ‘TAA Driver to Europe Series’, the national Formula Ford championship.

The field included Kevin Bartlett, Alan Hamilton, Allan Moffat. Pictured here is Bib Stillwell in the car in which Larry Perkins won the 1971 Driver to Europe title, then Jack and Frank Matich in Elfin 600, Bowin P4X and Aztec FF respectively.

Whether or not Jack did a few laps in the Bowin at Warwick Farm in Sydney before the car was popped onto the trailer for Melbourne is unclear, ditto Bib, the owner of the Perkins Elfin 600! It was a fun race but their were plenty of guys keen to win, Jack prevailed in the short scrap, Goodyear shod of course…

Credits…

ullstein Bild, Classic FF FB page

Ps: ‘Drink it Freddy!’…

Was the catchy slogan or tagline of a popular sweet drink called ‘Quik’, the notion being that the additive made cows milk more drinkable at a time such milk was a good thing. I think it still is, but who knows? Anyway, the line was stuck in the back of my head, which is full of useless shite and popped out when i saw Jack and his Goodyear friend…

Pps: Love the neato Repco Brabham sticker on the cockpit screen of Jack’s car!

 

 

 

 

 

 

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George Eaton, BRM P153 in gorgeous pre-Yardley, traditional livery. Monaco 1970 (GP Library)

George Eaton navigates the tricky Monaco circuit in an unsuccessful attempt to qualify his new BRM P153 at the principality in 1970…

Tony Southgate’s new design was a very competitive machine, after the teams disastrous 1969.  Pedro Rodriguez won a classic Spa duel in the P153 with Chris Amon in 1970 but Eaton, the Canadian racer struggled to get the best from it in his only fullish F1 year.

Looking objectively at his results in Grand Prix racing, the wealthy young heir to the Eatons Department Stores empire didn’t appear to have what it takes at the absolute elite level, but comparing his and Pedro’s performances in the Can Am BRM P154 Chev later in 1970 perhaps puts things in a slightly different perspective.

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Eaton’s BRM P153 DNF oil tank, buzzes past the works McLaren M14D Alfa and M14A Ford of Andrea de Adamich DNQ and Peter Gethin DNF prang, respectively in the Zandvoort pitlane, 1970 (Schlegelmilch)

Eaton started racing in a Shelby Cobra in 1966. He raced a Chev Camaro at Daytona in 1967 and soon bought a McLaren Elva Mk3 Chev Can Am car in which he contested the USRRC and the Can Am Series in 1967. In 1968 he bought a McLaren M1C Chev, his best result was a 3rd place at Laguna Seca, in the wet, in 1968.

In 1969 he took a big step up contesting both the Can Am with a McLaren M12 Chev and the US Formula A, nee F5000 Championship in a McLaren M10A Chev, the ‘ducks guts’ chassis to have that year.

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Eaton, McLaren M10A Chev, Mosport 1969, DNF transmission in the race won  by John Cannon’s Eagle Mk5 Chev (ORC)

His best Can Am races in the M12 were a 2nd at Texas and 3rd at Edmonton but he was quick, consistently qualifying in the top six all year. In FA, in fields of some depth he raced in most of the US rounds, 6th at the Shaefer GP his best. He contested only four of the Canadian rounds taking a good win at Mont Tremblant in May.

Off the back of these results he was offered drives in the F1 BRM P138, a ‘roughy’ of a car, in the US and Mexican GP’s in late 1969, retiring from both after qualifying last in both. Hardly the basis upon which to extend a contract for the following season, but that’s exactly what Lou Stanley offered George for 1970- a drive alongside the quick, unlucky Jackie Oliver and the blindingly fast Pedro Rodriguez.

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Dutch GP, BRM P153, Q18, DNF. Rindt won in a Lotus 72 Ford (Schlegelmilch)

Eaton had a terrible F1 season, Pedro made the P153 sing. Oliver was quick but seemed to have all the engine unreliability, whilst George, probably not getting the best of equipment, was slow on the circuits which were unfamiliar to him and the car unreliable.

He qualified best in his home, Mosport event, 9th, outpacing Oliver and finished 10th. He qualified 14th at Watkins Glen and again retired but otherwise didn’t qualify higher than 14th with DNQ’s in Spain and Monaco.

His speed in the Can Am series was a bit different though…

1970 BRM P154 Can Am Season…

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George Eaton with the BRM P154 Chev, 11 June 1970 (Dick Darrell)

Eaton’s pace was put into better perspective when compared with Pedro Rodriguez, his team leader and undoubtedly one of the fastest five blokes on the planet at the time, in Can Am cars.

Rodriguez contested the Donnybrooke, Laguna Seca and Riverside events, the last three of the series races from late September to 1 November. The ‘head to head’ comparison in identical P154 chassis on circuits upon which both had competed before is as follows;

Donnybrooke; Pedro Q7 P9 George Q5, DNF rocker

Laguna Seca; Pedro Q9 P5 George Q8 crash on lap 11

Riverside; Pedro Q7 P3 George Q 1.5 secs quicker than Pedro in practice but boofed the car and DNS

So, George appears to have had Pedro’s speed if not consistency in Can Am cars noting there was a veritable gulf between the pair in F1. Nobody ever suggested these 700bhp Can Am roller-skates were easy-peasey to drive, interesting innit?! Maybe Eaton should be given a little more credit for outright pace than he is usually accorded. He was not just a rich pretty-boy.

Before Pedro arrived to drive the other P154 chassis Eaton started the season at Mosport with Q7 and DNF with oil leak and transmission problems.

At St Jovite he was 3rd having  qualified 9th. To Watkins Glen Q13 and brake failure, Edmonton Q6 with a wheel bearing failure. The car had little pre-season testing some of these problems are indicative of that. At Mid Ohio he had fuel pressure problems which outed him, the dramas resulted in Q25. His results for the last three races are listed above in the comparison with Pedro.

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Eaton P154 Laguna Seca 1970, Q8 and crashed (The Enthusiast Network)

Further perspective on Eaton’s performance is provided by Pedro’s opinion of the car, the Mexican had been ‘around the block’ in terms of experience of big cars since his ‘teens and driven some horrid ones, the Ferrari’s he raced in 1968 and the BRM’s in 1969 prime examples.

Pedro visited Tony Southgate after racing the P154, Southgate recorded in his book ‘Pedro raced the car later in the season and afterwards came to see me in my office at Bourne to talk about the experience and told me in its present form the car was horrible to drive.

I had great admiration for Pedro, so I knew it must be really bad. I was very embarrassed and immediately set about re-engineering it and fixing all the problems. The revised car, the P167 went on to be very good in 1971 but it was still a low budget operation’.

The BRM Can Am program was minimal in 1971, two events plus Interserie races for Pedro at Zolder and wins for Brian Redman at Imola and Hockemheim, after Pedro’s death at the Norisring in a Herbert Muller owned Ferrari 512M.

In terrible irony Pedro took the Muller ride only after a testing engine failure in the P167 meant he could not race the BRM and therefore took the Ferrari drive.

Brian Redman raced the P167 at Laguna to 4th, and Howden Ganley the same chassis at Riverside to 3rd, proof positive that progress had been made.

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George Eaton in the BRM P154 Chev, Q6 DNF wheel bearing in front of Gary Wilson’s Lola T163 Chev 6th, at Edmonton on 26 July 1970. Denny Hulme won in a McLaren M8D Chev. Lots of available wheel arch a function of the P154 being designed for 19 inch wide wheels but only 17’s available- unsuitable suspension geometry one of the cars many issues (John Denniston)

But Bourne were not in a budgetary position to offer George another Can Am season in 1971, one he deserved.

Another season in F1 was a different thing, he had not done enough to keep that seat. As it was BRM were very competitive in F1 in 1971, Siffert and Rodriguez both taking a win apiece before their untimely deaths. Peter Gethin took another at Monza in the drive of his life in one of THE great GP finishes.

Into 1971 and 1972 George raced in endurance events although he was invited to guest drive a P160 BRM in the ’71 Canadian Grand Prix, qualifying 21st, slowest of the four BRM’s entered, he finished 15th.

George Eaton was a very fine driver and quicker than he is given credit for in Can Am cars at least. He extracted more from the very ordinary BRM P154, in qualifying in three consecutive events than an ace like Pedro Rodriguez could produce from the same chassis, a pretty ordinary one at that…

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George in the ‘Klondike 200’, Edmonton pits awaiting chassis changes in 1970. BRM P154 Chev, Q6 and DNF, wheel bearing. Fundamental issues with the car were the late decision on doing the program, one forced upon designer Tony Southgate- and lack of testing miles and development before it left the UK for the US. George did the development miles in the races, lots of stuff breaking as a consequence. Article on the P154 and P167 coming soon (Denniston)

Credits…

GP Library, The Enthusiast Network, classiccars.com, John Denniston, Dick Darrell

Tailpiece: Monaco 1970, this time from above. The BRM P153/P160 are wonderful cars, in reality the great Bourne marques last really consistently competitive hurrahs…

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Such beautiful and fast cars, one of the surprises of 1970, Tony Southgate’s BRM P153, Eaton at Monaco, DNQ (Schlegelmilch)

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Glemser/Fitzpatrick Ford Capri RS2600 ahead of a Ferrari 312PB and a Porsche 911RSR, Le Mans 1973 (Schlegelmilch)

Ford’s battles with BMW in 1970’s touring car racing are legendary as both manufacturers battled for supremacy. The adage ‘Win on Sunday, Sell on Monday’ was reflected in big marketing spends in the European Touring Car Championship at the time…

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Chris Amon in the CSL he shared with Hans Stuck, Le Mans ’73 DNF lap 162 with accident damage (Schlegelmilch)

In 1973 the protagonists in the big car class were the RS2600 Capri and 3.0CSL, the title that year won by Toine Hezeman’s BMW with wins at the Spa, Zandvoort and Paul Ricard rounds.

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Toine Hezemans/Dieter Quester CSL winning the class at LeMans in 1973 (unattributed)

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Jackie Stewart and Jochen Mass, Monza ETCC round 25 March 1973 (Schlegelmilch)

Such were the number of GeePee drivers involved one could have mistaken the paddocks for F1 events rather than touring cars; Stewart, Amon, Stuck, Hunt, Lauda, Ickx, Pescarolo and Emerson Fittipaldi all had a steer during the ETCC that year.

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Jean Claude Andruet/Richard Bond Ferrari 365 GTB/4 Daytona 20th, Dieter Glemser/John Fitzpatrick Capri, out in the 20th hour with a broken rod (Schlegelmilch)

Whilst Le Mans was not part of the ETCC, Ford and BMW slugged it out in the 24 Hour Classic although only one of the factory cars went the distance; the Dieter Quester/Toine Hezemans BMW was 11th overall with 307 laps.

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The race was won by the superb 3 litre V12 Matra MS670B piloted by Henri Pescarolo/Gerard Larrousse, the rapid sports-prototype covering 355 laps. The best placed Ferrari 312PB was 6 laps adrift of the Matra, Art Merzario and Carlos Pace were second with another Matra 670B driven by the two Jean-Pierre’s, Jabouille and Jaussaud in third place.

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#53 Koinigg/Vinatier/Birrell and #55 Glemser/Fitzpatrick (Schlegelmilch)

As to the rest of the factory touring car entries; the Dieter Glemser/John Fitzpatrick RS2600 schnapped a conrod on lap 239, the Chris Amon/Hans Stuck BMW had an accident on lap 162.

The woe continued with the Helmut Koinigg/Jean Vinatier/Gerry Birrell Ford having valve gear trouble on lap 152, Gerry Birrell swapped into this car after his own Capri had ignition problems. Hans Heyer co-drove that entry.

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Mike Kranefuss, keeps an eye on proceedings, ‘the boss’ as the cap suggests (Schlegelmilch)

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Glemser/Fitzpatrick RS2600 at Le Mans, DNF with a broken rod (unattributed)

I guess the cars weren’t stressed for 24 hours so perhaps the results are not too surprising, I posted an article about the fabulous Cologne Capri’s which may be of interest to those who have not read it; https://primotipo.com/2015/04/09/australias-cologne-capris/

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Credits…

Rainer Schlegelmilch

Tailpiece: Glemser/Fitz in the pits…

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‘If she would just ease her grip a smidge it really would be perfect’…

Seems to be the look on Jackie Oliver’s face. He and the delightful young lady are aboard Jackie’s ’74 Can Am Championship winning Shadow DN4 Chev. It’s the London Olympia ‘Speedshow’ on 2 January 1975.

By 1974 the heyday of the greatest motor racing spectacle on the planet was over, the Porsche roller-coaster effectively did that in 1972/3 as well as some poor decision making by officialdom which drove the likes of Jim Hall from the series. Sans Chaparral the show was never quite the same.

Longtime Don Nichols driver Oliver didn’t have an easy time of it in 1974 though, his teammate and ’72 Can Am champ George Follmer gave him a serious run for his money. Oliver won 4 rounds, George followed him home in 3 of them. Scooter Patrick won the other round in an old McLaren M20 Chev.

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Road America 1973. Oliver DNS in the championship race after an engine failure in the sprint event. Compare and contrast the 1973 DN2 with the 1974 DN4 below. Donohue won in a Porsche 917/30. #47 is Ed Felter McLaren M8E Chev DNF and #51 is not on the results data-base i have if anyone can assist (unattributed)

New cars for 1974, the DN4 design (below) was fundamentally smaller than the ’73 DN2 (above) and built around fuel cells of only 45 gallons, the legislators reaction to the oil crisis of the time. Track, wheelbase and overall width were less than the DN2. Southgate used some DN3 F1 hardware in the DN4, ‘the last great CanAm car’, but the layout-aluminium monocoque, Hewland LG ‘box and ally-block Chev, which still gave a reputed 800bhp were all CanAm standard issue. Albeit a brilliantly executed one which was driven mighty well by a couple of Group 7 veterans in Ollie and George…

Credits…

J Wilds, nwmaracing

Tailpiece: The ole DN4 one-two. Oliver from Follmer at Mosport on 16 June 1974, they finished in that order with Scooter Patrick 3rd in a McLaren M20 Chev…

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(nwmaracing)

 

 

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Iso Grifo A3/C Chevrolet at rest. Piero Drogo’s Carrozzeria Sports Cars, Modena, Italy December 1964…

Renzo Rivolta was an ingenious Italian entrepreneur in postwar Italy.

He owned the Isothermos heater and refrigeration company and postwar decided to build cars, his passion. He started with motorcycles and then introduced the Isetta, an incredibly successful economy car he subsequently and very profitably  licensed to BMW and others.

Into the early sixties he formed Iso Automobili and introduced the Iso Rivolta GT to rave reviews at the 1962 Turin Auto Salon.

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The Iso Rivolta GT being driven the way it’s creators intended on the roads outside LA in August 1966 during this road test (Darryl Norenberg)

One of Rivolta’s key players in his nascent enterprise was Giotto Bizzarrini, the gifted engineer who played a key role in the development of the Ferrari Testa Rossa and 250 GTO. After the so-called ‘Palace Revolution’ of 1962, Bizzarrini left Maranello with Carlo Chiti and others and soon found work as a freelance engineer, then with with Iso. There, Bizzarrini worked with Iso’s chief technician Pierluigi Raggi to develop the sophisticated platform type chassis which formed the basis of the 2+2 Iso Rivolta GT.

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Berney/Noblet Iso Grifo A3/C on its way to 14th place at Le Mans 22 June 1964. Car behind the Dumay/von Ophem Ferrari 250LM 16th (Getty)

Bizzarrini, Bertone and others encouraged Rivolta to build a sports car to enhance sales of the Rivolta, which were flagging, partly due, its said, to the failure of the US importer to meet its contractual obligations. The result was the Iso Grifo two seater GT built on a shortened Rivolta chassis.

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Grifo Lusso on Bertone’s stand at the 1963 Turin Salon, and doesn’t it look just so sweet in a brutal kinda way. The alloy wheels are Borrani’s (GP Library)

The chassis had a fabricated sheet steel platform as a base with tubular ‘space frame’ upper sections clearly shown in the photographs below. Two Iso Grifo versions were built and shown at the Turin show in November 1963. The luxury touring ‘Stradale’ A3/L (Lusso) was displayed on coachbuilder Bertone’s stand, while Bizzarrini’s race-prepped A3/C (Corsa) was long, low and lean on Iso’s stand.

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Chassis as per text; platform type lower sections and cockpit bulkhead with tubular steel spaceframe otherwise, December 1964 (Klemantaski)

 

Wearing lightweight aluminum coachwork penned by Bertone’s great and immaculately credentialled Giorgietto Giugiaro, and built by Piero Drogo’s Carrozzeria Sports Cars in Modena, the A3/C ‘was a spectacular vision with aerodynamic flair. The result was an impossibly low and wide car that was exotically curved from every angle’. Some regard the car as one of the most beautiful shapes Giugiaro ever created.

In an effort to avoid the cost, time and complications of engine construction, Iso specified a 5.3 litre Chev V8 engine which was highly tuned for racing in the A3/C. Depending upon specification the famous Chevy 90 degree, cast iron, push-rod OHV ‘small block’ V8 produced between 350 and 420 bhp. The latter spec involved steel internals, roller-rocker valve gear, 4 Webers and the rest, the car good for circa 180mph down the Mulsanne. In addition the engine was placed far behind the front axle, giving the car a very racey front but mid-engined layout that plonked all the masses right where they needed to be. The engine was mounted so far back in the chassis that the Chevy’s distributor, famously, had to be accessed through a removable panel in the top of the dashboard!

The gearbox was a 4 speed Borg Warner T4.

According to some historians, Bizzarrini described the A3/C as the second coming of his GTO, a more refined one at that.

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Carozzeria Sports Cars May 1965, note the full race Chevy topped by four side draft 58mm Webers on crossover manifold (Klemantaski)

Suspension of the car was conventional upper and lower wishbones up front with coil spring/damper units and an adjustable roll bar. At the rear a de Dion rear axle was located by twin radius rods and a Watts linkage,  again with coil spring/dampers.

Burmann recirculating ball steering, 4 wheel disc brakes and lightweight magnesium alloy wheels (7X15inch/9X15inch wheels) completed a beautifully specified and integrated package.

The car was 4369mm long, 1730mm wide, 1135mm high, had a wheelbase of 2451mm, a track of 1410/1435mm front/rear and weighed circa 1000Kg

Bizzarrini provided full build execution for the AC/3 at his Autostar Works factory in Livorno, for 18 months Giotto built the car under agreement with Iso. Iso and Bertone produced the Grifo A3/L road car.

To Rivolta the Grifo was a tool to promote his GT car, but Bizzarrini was a racer to the core so fissures developed in the relationship between the two men as to where the primary focus should be. After about 20 examples of the Drogo-bodied A3/C’s were made, in the summer of 1965, Bizzarrini left Iso and produced the model under his own name, in both Strada and Corsa forms. As few as 115 examples of the cars were made under both names.

Most of the cars pictured in this article are some of the 20 A3/C coupes built using very lightweight, riveted (over 7000 of them were utilised in each body) aluminium bodies fabricated by Piero Drogo’s Carozzeria Sports Auto, the photos were taken in Drogo’s workshop in Modena in December 1964 and early 1965.

Part of the A3/C’s transition from an Iso to a Bizzarrini involved a change of coachbuilders from Drogo to Salvatore Diomante and his Carbondio concern, which was eventually reborn as Autocostruzione SD of Torino.

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The Pierre Noblet/Edgar Berney Grifo ahead of the #5 Dan Gurney/Bob Bondurant Shelby Cobra Daytona Coupe 4th with the nose of the #24 Lucien Bianchi/Jean Blaton Ferrari 250GTO 5th during Le Mans 1964 (Getty)

From a racing perspective amongst the cars best international results are 14th outright and 4th in class at Le Mans in 1964, 5th in the Monza 1000Km and 19th at the Nurburgring 1000Km in 1965 a season which started badly with one car destroyed at Sebring and then another at Daytona.

Given the cars low build numbers it raced as a prototype against outright class mid-engined sports-prototypes rather than amongst the GT cars more akin to the Grifo in specification.

Credits…

Bonhams, Sotheby’s, Getty Images, Klemantaski Collection. Darryl Norenberg/The Enthusiast Network, The GP Library, F2 Register

Etcetera…

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The Getty caption describes this car as a Lusso, outside Drogo’s workshop in December 1964, same chassis as the opening photo (Klemantaski)

Tailpiece: A car fit for a King. John Lennon susses the interior of his new Iso Fidia S4 at Earls Court in October 1967…

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Rubens Barrichello guides his Stewart around the difficult, wet confines of Monaco in 1997…

In a race shortened by very difficult conditions, Rubens Barrichelo demonstrated his undoubted speed and finesse. 30 minutes before the race started rain began to fall, causing the teams a conundrum as to tyre choice and car setup. Schumi led from the start in his Ferrari F310B, the Jordans were very quick having a rain setup and great Bridgestone wets, better than the Goodyears on the day.

Damon Hill’s Arrows was out early after a collision with Mika Hakkinen’s McLaren, Frenzen’s Williams hit a barrier, and then Villeneuve too hit some of the local topography in the other Williams. Schumacher continued to lead by 30 seconds from Rubens who took a great 2nd and the first podium for Stewart, the SF01 Ford in only its 5th race. It was a great, early result for Jackie and Paul Stewart’s Ford supported team, the Alan Jenkins designed car powered by Ford’s VJ Zetec-R 3 litre V10, a Cosworth Engineering design of course. Eddie Irvine was 3rd in the other Ferrari F310B.

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In some ways the Stewart result flattered to deceive; results were predictably hard to come by, 1998 was very tough but the Gary Anderson designed 1999 SF03 powered by a new CR-1 Ford V10 took a win at the European Grand Prix, Johnny Herbert was victorious that day at the Nurburgring.

Ford then acquired the team from the Stewart’s in full renaming it Jaguar Racing for 2000 before its 2005 sale and morph into the rather successful Red Bull Racing…

Credit…

Empics Sport