Rolling Road figures

[Viper Craig]

Hey All,

Had my '97 GTS on a dyno today and got some interesting figures from it. Car is standardish, upgrades are a K&N induction kit, SVS Headers and a custom stainless exhaust system with Hi-Flo Cats.

Figures I got were 470bhp at the clutch, 450bhp at the wheels and a lovely 560ft/lbs torque. Quite happy with that, although it would have been nice to see 500bhp at the clutch.

Oh well, more work to do to!

[oxam]

Hmm strange - 450 at the wheels should be more 510 at the crank, assuming 13% drivetrain loss

[dpd3047]

What dyno did you use losses should be between 13 and 15%, the losses seem a bit low.

[Dr-Bob]

Losses are very low.......

[Viper Craig]

Used a Dynojet rolling road. With the experience you guys have, what would you say is the more accurate figure, 470 clutch or 450 wheels with the upgrades i've got?

[ViperGTS99]

470 bhp at the clutch.
410-400 bhp at the wheel.

[fishboy]

with the dyno day we did a few years back it seemed to be about 15 to 20% less mine was 478 and 399 at the wheels

[fatboy18]

I had 479 flywheel and 393 wheels,
2000 Creampuff, BTR Cone intake Filter kit, http://www.btrviper.com/intake.html Factory Headers, Factory cats, Bellanger 3" Cat back rear exhaust system http://www.belangerheaders.com/home/vehicles/96'-0...