Got a chance to put the car on a Dynojet today. It has 2,600 miles on it. 3 pulls were done. Car is completely stock. Here are the corrected results at the wheel:

CF: SAE smoothing:5
Max power: 394.83
Max torque: 288.82

CF: STD smoothing:5
Max power: 406.54
Max torque: 297.38


I've been really curious about these 3.8 GT3 engines. Very interested in seeing results from other stock 997.2 GT3's.

I'll be doing before and after dynos, on the same day the Akrapovic GT3 race system is installed(very soon); and later the same with software/filter. Just to measure gains.

 

When the car only had 250 miles, one pull was done at operating temp and it dynoed:

CF: STD smoothing:3
Max power: 413.83



This was done at a different dynojet. The RPM cable wasn't working so no torque reading

Different gas brand, fans, different dynojet or the ECU adjusting itself due to different weather causes the different results.

 

v poor results. most mk1's were getting around 435bhp so dont know why this was so low. was it buckled down to hard you think? Were fans present? Am i just a Gt3 fanboy?

 

It 435hp possible on both stock MkI & MkII since he's measuring wheel horsepower ?

 

What's up J ??...shoot me a PM... I got your wheels ready for powder !!!

 

Not at the wheels my friend at the crank and I know you know your stuff.

 

sorry didnt read your thread right! What does that mean at the crank then? I forget the mathmatical hocus pocus

 

^ Dynos read power at the wheels. For a RWD car, multiple by I think 1.2 or so to get the crank power. They lose +/- 20% in the drivetrain.

 

For a RWD 911, that number is closer to 15% or better.

 

So about 460 bhp. Not bad at all! Looking forward to seeing what the rs can do!