Based on a 1976, Speke-built TR7 coupe

 
Driver/Owner - Jon Wolfe
 

Click here to see 2002/03 spec sheet

In the winter of 2003/2004 a fairly major rebuild of the car took place with the main changes being:

• Engine changed from carburettor to injection. This was a huge amount of work and took far longer than expected. It now uses a quad Jenvey downdraught setup on custom intake manifolds with a DTA P8Pro mappable ECU

• Smaller, lighter rear exhaust boxes

• Rear of car lowered by another 20mm requiring the alteration of the radius arm mounts on the axle and use of shorter rear shock absorbers

• Larger (8 gallon) petrol tank fitted

• Oil tank (in boot) moved forward by about 12 cm

• Roller top front turrets

• New crown wheel and pinion (to Leyland race ratio)

• Another 5 kg removed from around the car

The car is built to comply with the rules of the MSA (Governing body of UK motor sport) and the TR Register. The car runs in Class F (renamed from Class G for 2003 onwards), for fully modified cars over 3.0 litres.

The main restrictions which applied were as follows: 

1. Minimum weight at end of race is 1000kg including the driver

2. Wheels should be no wider than 7" with a diameter of 13" and fitted with Yokohama tyres

3. Engine size limited to 3950cc + small overbore

4. Modifications to original bodywork shape are very limited

Racing TR7V8 Specification - 2008

• CES Power built 4.0 litre Rover V8 developing in excess of 365BHP at 6000rpm

1. Late 4.0/4.6 cross-bolted block
2. Modified 4.6 litre cylinder heads with race valves and springs
3. Forged JE pistons and steel H-beam con rods
4. Custom cut cam with solid lifters and Comp Cams push rods
5. Titan roller rockers on custom rocker shafts and posts
6. Pace/John Eales dry sump system with boot mounted oil tank and 16 row oil cooler
7. All ARP bolts
8. Jenvey quad downdraught injection on custom built intake manifolds.
9. DTA P8Pro programmable ECU
10. Bespoke 4-2-1 exhaust system silenced to about 104Db

• DMS Varley RedTop pure lead battery
• Polycarbonate side and rear screens
• GRP bonnet, front wings, nose, and boot lid
• GRP/Diolen wrap-around seat with professional 4-point, 3" OMP seat belt
• Plumbed in AFFF fire system
• Multi-point, welded and bolted roll cage
• Alloy, foam-filled fuel tank with red top lifter pump and Bosch injection pump
• 7J13 Alleycat wheels with 205/60r13 Yokohama A048r tyres (control size)
• 8J15 Compomotive MO wheels with Avon racing slicks (alternative for non-champ races)
• 4 pot, AP billet brake calipers with 266mm x 20mm vented discs up front with standard drums on the rear
• Custom built AP racing clutch
• Standard, 5-speed Rover SD1 gearbox
• Standard, 5-speed type rear axle unit with various ratios of CWP and Salisbury LSD
• Lightened to 890kg and ballasted up to minimum weight (1000kg inc. driver)

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