Well I took the engine and the gearbox out this evening, so that has saved loads of weight. It has hurt my power to weight ratio a little though!!!
cupid stunt
If we are getting daft you could fill your tyres with helium?
Cut big holes in the roof an cover it with orange solarfilm
Hi Guys
Well after drag racing a few times this year and sorting some gear changing problems out, I went to Shakespeare county race way and ran 12 runs! First two were 13.2’s and 10 of 13.1s!! So I think that’s it!! I tried everything to go faster let the tyres down burnout etc etc but best was a 13.111, now im running just legal toyo prox tyres and don’t want to go slicks as its a road car, Also don’t want to run nitros as in my eyes its cheating as I want to run the car as it does on the road. I would really like to get into the 12 secs which is only .2 of a sec off my time. So I think I need more power.
My spec is:
196.1bhp @ 7797rpm / 146.1 lbft @ 5821rpm
DVA Big valve Head, 29.5mm inlet valves 26 exhaust.
VHPD cams, Solid followers, Piper verniers, jenvey direct to head throttle bodies, bernard scouse airbox, Omega forged pistons, VHPD(PTP) Rods, VHPD (ptp) crankshaft, eliseparts lightened flywheel, ap racing clutch, Eliseparts Ultimate bore manifold, Emerald ECU, Close ratio gearbox.The bottom end has all been balanced and the engine has been mapped by Dave Walker, it is really smooth, nothing like a lumpy VHPD.
As you can see im still on an Elise head so was thinking of putting an exige head on the car over the winter and maybe another set of cams??? Also is it worth porting an exige head or going for bigger valves than standard? I know I will need a remap after all of this but what sort of BHP would I be looking at? And whats the cost of a good 2nd hand VHPD head? My rev limit is set to 8k at the moment can I get it to rev any harder without touching the bottom end?
Thanks
James
Those are very respectable times, you are going to need quite alot more power to get it to a 12.7 or so. My recomendation, and professional courtesy prevents me from publishing all the bits we do to Logans car, but i would suggest the following:
- Long diffusor
- Geo, very little toe and camber for race day, it’s a pain but it is neccessary, you can’t have a good track car and a good drag car, it’s 1 or the other. So you have to set it up for the 1/4 mile runs before the event. Front toe is also quite important.
- Obviously run with the roof on, it’s extra weight but slightly more aerodynamic.
The geo,diffusor and some grip tire softener should see you into the 12.9 second bracket, providing you haven’t done all of that already at which point my help is useless