Posts Tagged ‘MG EX135’

(Theo Page)

Perhaps MG saved the best till last?

EX181 was the marque’s final record breaker, which commenced with the 1930/1 EX120…

The famous company, in part built its brand very cost effectively by setting a number of Land Speed Records down the decades. Stirling Moss did 245.64 mph and 245.11 mph for the flying kilometre and flying mile respectively in August 1957, and Phil Hill 254.91 mph and 254.53 mph over the same distances in October 1959 with EX181’s engine increased in capacity from 1489cc to 1506cc- this allowed the sneaky Brits to bag both under 1500cc and under 2000cc records, both at Bonneville.

Twin inlets in the cars nose pushed air thru ducts either side of the driver and flow to the radiators, carb inlets, the engine and transmission- outlet ducts clear (unattributed)

The Roaring Raindrop was not just a teardrop shape known to give minimum aerodynamic drag at subsonic speeds- in side elevation it also had the cross section of an aerofoil to a wing section of Polish origin which was identified by MG Chief Engineer Syd Enever as ideal for the task. His theory was tested by Harry Herring in the Armstrong Whitworth wind tunnel.

The Morris Engines Experimental Department in Coventry developed an MGA twin-cam, two valve engine which had many trick lightweight competition internals ‘off the shelf’ and a massive Shorrock supercharger driven by a spur gear from the front of an extended crankshaft fed by two whopper 2.5 inch SU carbs. The fuel mix was one third each petrol, benzol and methanol.

The 1957 1489cc engine developed 290 bhp @ 7300 rpm and 516 lb/ft of torque @ 5600 rpm using 32 psi of boost. Cooling of the motor was achieved by the use of two curved radiators from an Avro Shackleton marine reconnaissance aircraft.

(mgaguru)

 

(mgaguru)

EX181 was built under the supervision of Terry Mitchell using a bespoke twin-tube chassis with MGA derived suspension at the front- wishbones, coil springs and lever arm hydraulic shocks and a de Dion rear setup deploying quarter elliptic leaf springs and again lever arm shocks.

Cooling for the single Girling disc brake was provided by a small hinged rear flap on the central spine of the machine aft of the cockpit, this popped  up when the driver pushed the brake pedal and also acted as an air brake.

The final essential element in the cars record breaking specification was Dunlop 24 inch diameter tyres capable of inflation to in excess of 100 psi.

Snug in there, Moss Bonneville 1957

Etcetera…

(S Dalton Collection)

Credits..

Autocar, Theo Page, MotorSport article August 2008, mgaguru.com, Stephen Dalton Collection

Tailpiece: Phil Hill, EX181 Bonneville, 1959…

(unattributed)

Finito…

 

image

(Imagno)

 Gardner’s streamlined 1100cc Zoller-supercharged MG K3 Magnette. ‘Goldie’ storms along the Frankfurt Autobahn at nearly 150mph, 25 October 1937…

Lt-Col Alfred Thomas Goldie Gardner, born 31 May 1890, was one of the most versatile racers of the 1930s and 1940s as well as a pretty handy engineer.

After completion of his education he went to Colombo, Ceylon to take up a 3 year business contact, at its completion he travelled to Burma for business but returned to the UK for 6 months after contracting malaria in 1914. Upon the War’s outbreak he joined the army, he was commissioned as a second-Lieutenant in the Royal Artillery. He had a distinguished military career, becoming  the youngest Major in the British Forces. In 1917 his reconnaisance plane was shot down by German fire, he copped leg and hip injuries which hospitalised him for 2 years, he was invalided out of the army as a result.

A Brooklands competitor, he started racing a Gordon England modified special Austin Seven in 1924 progressing through a Salmson and Amilcar to a C-type MG Montlhery Midget in 1931, a marque with which he is synonomous.

Cecil Kimber noticed him, he raced various MG’s with a lot of success from 1930. He was the first to lap Brooklands outer circuit at over 100 mph in a 750cc car in this period.

goldie brooklands

Gardner, MG K3, Brooklands date unknown (unattributed)

After a bad 1932 Tourist Trophy crash at Ards, Ireland when he rolled his MG J4 three times he ceased road racing, his leg and hip was not strong enough to cope with its rigours.

ards

Gardner looks ok despite the wild ride which destroyed his MG J4, he crashed on lap 3 of the 1932 Tourist Trophy at Ards-Belfast. By the looks of the amazed spectators it was a ‘big one’, Gardner thrown out on one of three rollovers (Heritage Images)

He  made the occasional Brooklands appearance, by 1934 he was ‘track racing fit’. He finished 3rd outright and first in the 1100cc class in the Brooklands 500 miles with co-driver ‘Bentley Boy’ Dr.J.D.Benjafield in an MG K3 Magnette.

Gardner travelled with Sir Malcolm Campbell’s World Land Speed expedition to Daytona Beach, Florida in 1935 and was inspired by it, concentrating on speed record attempts from then on setting over 100 National and International records between 1936 and 1952.

He bought the ex-Horton offset K3 single-seater for that purpose and was soon lapping Brooklands at over 120 mph. An improved streamlined body raised this to 124.4 mph, an 1100cc class record which remained unbroken until the tracks 1939 closure.

goldie and bernd

Gardner, Bernd Rosemeyer and Auto Union record-breaker Frankfurt 12 January 1938, this is 2 weeks before Bernd’s fatal accident on 28 January. 1938 AU ‘Stromlinienwagen’ 6.5 litre variant of the 6 litre V16, 560bhp@4800-4900rpm  engine (RacingOne)

In record runs at Montlhery and Frankfurt in October 1937 Gardner clocked almost 150 mph, 148.8 to take a Class G record for the flying kilometre. Auto Union’s Eberan von Eberhorst took him aside during ‘SpeedWeek’ suggesting he would go much faster with a streamlined car. At the time Mercedes and Auto Union were not only waging battle in Grands’ Prix but also in Land Speed Record attempts and were learning much about aerodynamics.

ex135 mounting

Press shoot, not sure where, Gardner in MG EX135, photo dated 15 August 1949 (Harold Clements)

When he returned to the UK he sought to convince MG to build him a car. Lord Nuffield gave his support and rather than ‘re-invent the wheel’ it was decided to try and get hold of George Eyston’s K3 based EX135 record-breaker built 4 years before.

Donald Letts had the car which critically had the offset transmission specification which would be required and happily agreed to sell. EX135 originally had race and record breaking bodies was further modified by fitment at Abingdon of  Reid Railton designed completely enclosed bodywork. John Thornley in his book describes the aerodynamic ‘K -factor’ of EX135 as 0.000400, the later EX279 was 0.000315. Suitably refurbished and rebuilt by ‘Jacko’ Jackson, Syd Enever and Robin Jackson, the beautiful car was used by Gardner in various forms, with a variety of engines for the rest of his career.

ex color

This ‘Modern Wonder’ contemporary article describes the 6 cylinder, 1086cc circa 195 bhp Vane type supercharged, twin-SU carbed engine as having magneto ignition, sodium filled exhaust valves and a bronze cylinder head, four speed ‘box. Dimensions are given as; 16’5″ long, width 5’3″, height 2’2″ and wheelbase 8’3″. The ‘beautifully streamlined body (was) built under Jaray (German) patents…’ ‘Design and construction of the car was headed by MG’s Cecil Kimber, while Reid Railton developed the streamlined bodywork’ (oldclassiccar.co.uk)

In the November 1938 German Speedweek outside Frankfurt the ‘new’ EX135 produced two way averages of 187.62 and 186.567mph for the flying mile and kilometre respectively. Showing its aerodynamic properties the car reputedly took 3 miles to stop, Gardner allowing it to coast to a halt!

frank 1

Gardner and EX135, Frankfurt 1938 (unattributed)

The Nazi Government was improving the countries road network and created in the process a ‘record route’, the ‘Dessauer Rennstrecke’ (Dessau Racetrack) between AS Bitterfeld and Dessau South which opened in January 1939. No speed records could be set on existing closed circuits which were simply too short for the powerful high speed cars of the day.

The straight stretch of road was 10km long, 25 metres wide, had no median strip and pillarless bridges. It was also intended as a wartime auxiliary airfield and was designed around target speeds of 600kmh. In the short time before Poland was invaded on 1 September 1939, Rudy Carracciola did 399.6kmh over the measured mile with a flying start in a Mercedes W154 3 litre record car, amongst other records he set, in February 1939.

nazi

(Die Welt)

At Dessau on 31 May 1939 with a higher top gear Gardner took the 750 to 1100cc records over 2 kilometres, 1 mile and 5 kilometres, at averages of 203.5 mph, 203.3 mph and 197.5 mph. His performances left those present in a state of disbelief, it was the first time an 1100cc car had gone anywhere close to the magic 200mph.

After an overnight engine rebore in situ! to1105.5cc, on 2 June 1939 at the same venue he bagged the 1100 to 1500cc class records over the same distances at averages of 204.3 mph, 203.9 mph and 200.6 mph. The achievements were rather lost given the imminence of WW2.

Dessau 1939 (J Dugdale)

 

ex cockpit

EX135 before the off, Dessau 31 May 1939 before the successful 200mph attempt. Array of Smiths instruments, steering wheel shape pre-dates F1 practice by 70 years! (John Dugdale)

One of those remarkable souls who served in both wars, Goldie Gardner took EX135 with 750cc engine fitted to Belgium’s new Jabbeke motorway in 1946 achieving 159.15 mph.

In 1947 he returned to Jabbeke with the car converted to a 500cc four-cylinder by removal of two conrods and pistons and blanking off two pots! He set new records, reaching 118 mph.

ex jag

Jaguar’s and later Coventry Climax’ designer Wally Hassan fettling his 2 litre, DOHC, cast iron block alloy head, twin SU fed engine, the performance of which clearly pleases Goldie! Jabbeke, Belgium September 1948. In the event Jaguar did not proceed to a production variant of this prototype engine, the 6 cylinder XK its primary engine on track and road for decades to come (unattributed)

In September 1948, he was back at Jabbeke, the streamlined MG powered by a prototype Jaguar XK100 DOHC 2litre 4 cylinder engine. In that ‘MG Jag’ hybrid he reached 176.6 mph for which he was awarded the second of three BRDC Gold Stars. He was also awarded the OBE.

Soon he was ‘back to his tricks’ playing about with MG engines and setting more records; a 1 litre six became a 500cc three-cylinder engine achieving over 154 mph. A 1 litre four-cylinder engine was transformed into a 500cc twin, this did 121 mph at Jabbeke, again in EX135. Gardner now had records in six out of ten international capacity classes, all taken with his famous MG.

ex bonne 1

Superb lines of the 1933 EX135 at Bonneville in 1952, the car had longevity amongst its many other attributes! (unattributed)

With a supercharged MG-TD 1.5 litre engine, the car did 137 mph at Bonneville in 1951,a year later 148.7 mph with a 2 litre Wolseley engine and 189.5 mph with a new MG TD engine despite wheelspin which reduced his speed somewhat.

booe 3

Ex135 at Bonneville, 1952 (unattributed)

Gardner, at 63 and truly a ‘Boys Own’ character, retired from the sport he loved to his motor-trade businesses. He died in 1958, one of a breed which no longer exists

Etcetera…

ex cutaway

MG EX135 period cutaway drawing by Max Miller, K3 underpinnings inclusive of girder chassis, engine and gearbox all clear in this shot

ex 1

ex 2

goldie prang

Another view of Gardner and his J4 after its big shunt, Ards TT 1932 (Heritage)

k3 mont

Gardner and K3 at Montlhery in June 1937, records taken as per hand written annotation (unattributed)

ex nuff

Press shot after EX135 rebuild into its Reid Railton’s bodied form; Cecil Kimber, Lord Nuffield, Gardner, big, tall (6’2″) bugger isn’t he! and Reid Railton (unattributed)

Bibliography…

The National Motor Museum Trust

Credits…

Imagno, Heritage Images, MGAguru.com, Schirner, oldclassiccar.co.uk, Max Miller, Racing One, Ullstein Bild, John Dugdale

Tailpiece: Team MG, Bonneville 1952…

bonne 2

(unattributed)