First Dyno Run Questions

[Tom Welch]

Hello,

Torque is REAL high for the amount of HP. The hp number is average for your year viper with no modifications. Torque should be somewhere between 400-415. Your driveline loss calculations are correct at 15%. The average manual transmission car uses 10-12% but the viper has independent rear suspension which costs us another 3%.

Take care,


tom

 

[Supercharged Vipermad]

One other note -- the correct drag coefficient for the RT/10 is .52. It's an aerodynamic brick wall :^| Agree with Tom's comments that the HP sounds about right and the torque is too high.