OK now I know it's anyones guess as to how accurate it is right now, since my Renault has never seen a dyno in its life, but I tested it tonight (handy sliproad!), pumped in the various figures you need (gear ratios, car weight, drag coefficient, frontal area, air temp, humidity, pressure, tyre size), and ran the test..
Came out with 127hp at the wheels, assuming ~15% drivetrain losses that would be 149bhp at the crank - stock is 137bhp, I have a filter, straight through exhaust, and hill power chip, which is probably ~10 or 15hp over stock tops, so I reckon it's not that far out really..
Yep, it arrived..
OK now I know it's anyones guess as to how accurate it is right now, since my Renault has never seen a dyno in its life, but I tested it tonight (handy sliproad!), pumped in the various figures you need (gear ratios, car weight, drag coefficient, frontal area, air temp, humidity, pressure, tyre size), and ran the test..
Came out with 127hp at the wheels, assuming ~15% drivetrain losses that would be 149bhp at the crank - stock is 137bhp, I have a filter, straight through exhaust, and hill power chip, which is probably ~10 or 15hp over stock tops, so I reckon it's not that far out really..
here's a pretty graph; http://www.mind-design.co.uk/images/dynorun1.jpg
It's a bit of fun, if nothing else