jonD6B 0 Posted April 20, 2006 I have just found, whilst searching through mounds of history for my car, a power graph taken afew years back from Skip Brown Cars. The car is a 1.9 GTI and peak power was 117bhp @ 6000rpm in 3rd gear with a K+N induction filter and a Scorpion full system. The two questions I have are; Does anyone have any idea whether the SBC rollers are particually accurate and do SBC still have a rolling road in Tarporley? Share this post Link to post Share on other sites
PumaRacing 2 Posted April 20, 2006 Are you sure that wasn't a wheel bhp figure rather than a flywheel one? SBC's rollers read massively high. You can usually figure that their wheel bhp number will be not far off everyone else's flywheel one. Share this post Link to post Share on other sites
jonD6B 0 Posted April 20, 2006 Are you sure that wasn't a wheel bhp figure rather than a flywheel one? SBC's rollers read massively high. You can usually figure that their wheel bhp number will be not far off everyone else's flywheel one. The answer is simply, I don't know whether it was a wheel or flywheel bhp figure. I would have assumed that it was a flywheel figure as it seems about right given the guidelines on your website but the only information I have is the accumulative power and torque figures against the rpm. The engine seems very strong now but obviously I am unaware of how well/badly tuned the engine was when this figure was taken. You have answered my question anyway in that SBC rollers aren't accurate. Cheers. Share this post Link to post Share on other sites
Jonmurgie 2 Posted April 20, 2006 You have answered my question anyway in that SBC rollers aren't accurate. Well if Dave's to be believed EVERY rolling road is inaccurate... there are just differing levels of how far off they all are Share this post Link to post Share on other sites
jonD6B 0 Posted April 20, 2006 Well if Dave's to be believed EVERY rolling road is inaccurate... there are just differing levels of how far off they all are Speaking of powerstation... Just joking. I was contemplating taking the car back to SBC now I've set the engine up properly and I know it's running well to see what the comparison would be after an extra 40K miles on it. (A rough estimation). I am eager to have it RR'd to calculate it's power to weight ratio. Aside from aiming to take it to a group RR session there is a company 15 mins. down the road that do hub-dyno runs and tune over 6 runs but they charge £110 +vat and I can't decide whether it's worth the extra cost over a standard RR tune. Any opinions? Share this post Link to post Share on other sites
