I got 135HP at 7100RPM
I also got 117ft-lbs of torque at 2800RPM

The graph is hard to read, but that's what I saw on the dyno's computer.

So my question is, why is my car losing significant power at 3800rpm. And why is my peak HP happening past redline as well as my peak torque occuring before the "normal" point.

Also I read that the 88 N/A usually dynos at 115rwhp so I'm quite pleased with a 20hp increase to the rear wheels.

So anyone have any good input for me on how to correct the big power loss? And what's with my torque curve??? I'm sure if fix that, my peak HP would benefit. Thanks guys.

 

That is your bad ground at your ECU. Reground the grounds that lead to the ECU and you should get rid of that. Also rewire the fuel pump, as that is when the secondaries come online. That should fix the 3800 rpm studder.

That is a good dyno for a Series 4 N/A

 

interesting. I ran new grounds and the stutter went away, or so I thought. I can't feel it at all.

Oh well, I'll re-wire the fuel ump and see how that works.

Any other thoughts?

 

Did you solder the new grounds you made? Also, do they go to bare metal? Some things that have bitten others doing the same.

 

ttt