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Performance



18KB JPG

The following table gives performance data for different specification V8s and from a variety of sources. All on normal (hard) road tyres unless otherwise stated. I have only included accurate data that is backed up with magazine road tests or timing tickets from the drag strip. Accelerometer data is not used.

OWNER 0-60 0-100 1/4 mile 1/4 terminal Max Spd Power Source Notes
Factory/H753 BEA 4.0 8.7 - - 130 274 Fast Lane Original prototype. May 1991.
Factory/H782 GEA 3.5 7.7 - - 131 341 Fast Lane The record breaking version of H782 GEA. Tested on sticky, but road legal, Avon CR36. On Goodyear Eagles the 0-60 was 3.8. June 1993.
Factory/M501 MOJ 3.8 8.9 - - - 330 Top Gear A test of the new factory demonstrator. June 1995.
Ian Crocker 5.5 - 14.4 95 c. 120 163 North Weald Standard SD1 engine, open diff.
Richard Kingston - - 14.0 101 - est 200 Santa Pod 3.5 litre, unknown internals, Holley 390 carb.
Keith Crocker - - 14.0 106 - 217 Brighton Speed Trials 3.5 litre, ported heads, cam, 3.38 open diff.
Bob Yarwood 5.4 - 13.8 102 - est 250 Road & Track 3.6 litre. Power almost certainly overestimated by Yarwood. March 1996.
James Dudfield - - 13.7 102 - est 215 Road & Track 3.5 Vitesse spec with ported heads. Made 204HP in the Rover donor car. Yokohama A021R
Neil Taylor - - 13.6 103 - 225 Santa Pod TVR Power 3.9. TVR 51 cam. Weber 500cfm carb.
Mark Spain - - 13.5 99 - est 210 Santa Pod Std 3.9 Westfield with Optimax ECU, K&N filter and Sports Exhaust.
Graham Smith - - 13.4 103 - 220 Santa Pod 3.9 EFi. Big valve heads. Piper 285 cam. Cast exhausts. Yokohama A032R
Factory/H782 GEA 4.3 10.5 13.2 107 140 270 Autocar Original demonstrator. Had carb problems. June 5th 1991.
Graham Smith - - 13.2 105 - 237 Santa Pod 3.9 EFi. Big valve heads. Piper 285 cam. ACT plenum, ported inlet manifold. Cast exhausts. Yokohama A032R
Ian Crocker 4.9 12.3 13.2 103 128 212 Santa Pod 3.6 litre, ported heads, cam, 3.92 Quaife diff.
Alex Thorogood 3.9 9.6 13.2 - - est 260 North Weald 4.6 Range Rover short engine, ported heads, cam, quad Dellortos, 3.38 LSD. 0-60 and 0-100 times recorded using SPA intelligent speedo & Avon ACB10 tyres.
James French - - 12.9 106 - 225 Santa Pod 4.6 litre, heads, Eaton supercharger. Poor inlet system strangled power. 330lbft at 2750rpm.
Jon Twidale - - 12.9 116 - 333 Santa Pod 5.0 litre V8 Developments. Struggling for grip on Toyo Proxes tyres.
Stuart Walker - - 12.9 107 - 284 Santa Pod 4.6 litre, Quad 40s, V8 Developments 218 cam, big valve heads, Yokohama A021Rs
Factory/H782 GEA 4.4 9.4 12.7 - 144 270 Performance Car Same 3.9 JE engine as June 1991 test, but running properly. September 1991.
Steven Bezdecki - - 12.7 113 - 270 Santa Pod 4.2 litre sprint car.
James Lambert - - 12.7 109 - est 260 Santa Pod John Eales Dakar 4.2. Holley 390. 3-speed auto. Avon ACB10 tyres.
Phil Blake - - 12.7 113 - 292 Santa Pod V8 Developments 4.6, Efi, Yokohama A032R tyres.
Alex Thorogood - - 12.6 116 - 298 Santa Pod John Eales 4.6. Quad 45s. Viscous LSD. Avon ACB10 tyres.
Factory/M237 LOC 4.1 9.5 12.6 116 150 330 Performance Car December 1994.
James French - - 12.2 114 - 255 Santa Pod 4.6, big valve heads, Eaton supercharger. While the peak power is nothing special this car gets it speed from 345lbft of torque at 3400rpm! Yokoham A032R.
Ian Crocker - - 12.1 114 133 281 Santa Pod My car with John Eales built 4.2 on Holley 600. Colway F2 remould tyres. Top speed limited by gearing.
James Dudfield - - 11.9 114 - 321 Santa Pod 5.0 litre by V8 Developments. Flapper EFi. Falken tyres.
David Stephen - - 11.9 118 - 342 Crail 4.8 litre, Wildcat cylinder heads, custom cam, throttle bodies. Yokohama A032R.

Graham Smith

- - 11.7 118 -

350

Santa Pod 5.2 litre engine by V8 Developments.  Throttle bodies. DTA management. Yokohama A048R

Here are the times from some other Westfields for comparison.

OWNER 0-60 1/4 mile 1/4 terminal Max Spd Power Source Notes
Richard Long - 13.5 100 - 127 Santa Pod Westfield Megablade.
Chris Elsworthy - 13.5 100 - - Santa Pod Westfield SE. 2.0 YB Cosworth. Quaife SCCR box and ATB diff.
Graham Finlayson - 13.0 109 - 180 Brighton Speed Trials Westfield SEi with tuned Yamaha R1 & 6-speed sequential box. Carbon fibre body. 400kg
Graham Millar - 12.9 105 - 208 Santa Pod SBD208 Vauxhall in SEiW chassis.
Matt Hillam - 12.8 107 - 208 Santa Pod Early SEi stripped for sprinting running SBD208 2 litre Vauxhall. Shows the benefit of light weight!
Westfield Factory - 12.6 110 - 190 Santa Pod FW400.
Richard Long - 12.5 109 - 177 Santa Pod Westfield Megablade (127HP) with 50HP of nitrous.
'Deadscoob' - 12.5 110 - 180 Santa Pod Westfield XTR2. Hayabusa engine.
John Felstead - 12.5 116 - est 330 Santa Pod Westfield ZEi 220 (Cosworth Turbo). Ex-factory car L16 COS.
David Birch - 12.5 120 - est 330 Santa Pod ZEi220. Stage III engine. Harvey Gibbs Pectel. 1.6bar boost.
Neil Booth   11.02 133 - est
310
Elvington Westfield Hayabusa Turbo.  ACB10s.

0-60 times are not a very good indicator of a car's performance. Once you reach low 4s ordinary road tyres become the limiting factor. The times are also affected too much by the number of gearchanges made and they don't represent the range of speeds used when driving quickly. When driving fast how often do you drop below about 50mph ? Most time is spent between 50 and 100. Standing quarters are a much better indicator of a car's performance, but remember the following:

  • They still start from rest so driver technique is crucial.
  • Four wheel drive cars always get a better time than 2WD versions even though mid-range performance is normally identical.
  • Some magazines test 2 up and some don't. In a SEiGHT this will typically reduce the 1/4 mile trap speed by about 3mph and add 3 tenths to the time.
  • Owner-drivers are more likely to be mechanically sympathetic than a magazine tester. Also a magazine tester gets a lot more time to practice. I have rarely seen an owner-driver equal magazine test figures, they are usually about 0.5 to 1.0 seconds slower over a 1/4 mile.
  • Some magazines compensate for drag strip 'roll-out' when publishing times and others do not. What is roll-out ? At the drag strip the clock doesn't start until about 0.3 seconds after the car launches. Automatic timing equipment used by magazines usually starts as soon as the car moves. For an explanation of why, check out the Reaction Time Clinic.

If you don't have a drag strip nearby then a G-Tech Pro or an AC-22 is a handy tool that gives a pretty good indication of the car's performance if you use it properly.

If you have any more figures, especially from your own car, please mail them to me. If the figures are for your own car please let me know how the performance was measured, how much power the engine produces, and whether the car was on slicks or road tyres.


© Ian Crocker
Last updated on Jul 3 2005