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Old 21-07-2008, 08:13 AM
Nigel Gray Nigel Gray is offline
 
Join Date: Jul 2008
Posts: 1
Default History of Singer le Mans Special GLU610

History of Singer le Mans Special GLU610 - Nigel Gray




First iteration 1934
Started life as a singer le mans 1934-the four cylinder nine version. Wouldn’t pull the skin off a rice pudding.

Second iteration 1954
Rebuilt as a Holden special by Frank Murphy in 1954. Mated to Fiat 501 crash gear box via Holden clutch. Singer remote control grafted onto gearbox.. Holden diff mated to Holden clutch. Holden half shafts tapered into Singer hubs. Engine reputed to produce 140 BHP. Chassis boxed and stiffened with very strong X section in centre. Hydraulic Ford ten shock absorbers. Running gear and brakes original-brakes ten inch hydraulic. 16” wheels.

Competed in Hill climbs, sprints and races (Moomba meeting in 1965-programme in possession.). Sold to my Brother Peter Gray in 1956 who competed as before. Bought by me in May 1957 due to need for funds on part of brother. In race format but windscreen hood and side curtains provided. Sat on cushion with another in the boot as back rest-was quite comfortable but not exactly roomy for passenger as carburettors minimized footroom. Cockpit was pop rivetted aluminium sheet.

I fitted road equipment and homemade seats (about three variations over the years to 1968) and used it as everyday transport. Could fit the 3 kids in the boot when young.

Car was road registered in 1954 and has remained so ever since. Was reliable transport, very quick-ate XK 120’s at the traffic lights.

I estimate total road mileage between 1957 and 2006 as between 150,000 and 200,000 miles. Have owned the car now for fifty years.

Third Iteration
On the advice of Harry Firth’s brother Norman, bought a three main bearing Rootes group 1600cc pushrod with aluminium head, actually obtained from a 1965 Humber Vogue, together with gear box
With much help and advice from Graeme Hoinville the engine was installed and a new square tube subframe for the body scuttle made up, most of the wood removed, the aluminium body pop rivetted to the square tube and fibreglassed all over. The rear section was done with angle iron.

1993… Engine rebuild by Ian Tate-complete-bored to 1656 cc, 30 thou off block, crank ground and drilled to improve oil flow, modified tin/lead bearings, new camshaft bearings, cam reground after rebuilding, timing cover modified plus new chain and tensioner, new valves and valve guides, 35 thou off head= compression ratio from 8.6 to 9.6 to 1. Valves sit fairly deep but OK. Polished and cleaned out inlet and exhaust ports, large amount off flywheel, new ring gear, new clutch plate but pressure plate OK. Water pump rebuilt. 68 kilowatts on Ian’s dyno.

Bought crash hat and decided to compete after retirement. Rob Roy 29.56; Sandown regularity 2.00 min-ran with hood up in wet. Morwell just over 44 secs. Myrniong 35.6. Philip Island 2.41 regularity. Tarrengower 35.6. Winton 1.42. Car very reliable and robust, especially since re-engineering rear end so everything is round. Revs comfortably to 6500 but stick to 6000. Booked at 118 KMS returning from Winton – cruises very comfortably at 75-80 MPH due to diff ratio of 3.95
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