Thread: New Dyno Tune Numbers

Originally Posted by moddman

Just had my GTP dynoed today, not what I expected. 215whp/235torque. I thought I would be much higher at least 240hp to the wheels. Something is not right the car has gotten much slower this past six months. Its like driving with the supercharger belt off even though it is obviously not, the dyno setup measured 10.4 psi of boost. Has anyone ever encountered this with no codes and no KR with a "tuned by scan tune" on the car. BTW:My mods:CAI,3.5"Pulley,NGK-TR6,1.8 RR,3"DP,3"Cat&3"Exhaust.Custom PCM Tune.

that's what I would have expected with your mods.......except for the torque.....maybe they started the run above 4K?

Originally Posted by jdmgtp

that's what I would have expected with your mods.......except for the torque.....maybe they started the run above 4K?

What is the stock 2001 gtp put to the wheels? That would shed a light on things considerings my mods. At least I made about 50hp or more with what I have, dont you get a 15-20 hp increase with just a cold air intake, plus I have roller rockers and the exhaust mods, so something is holding the power back.

One thing though besides the tune that comes to mind is that I swapped out all my injectors with flow-matched zzp reman'd injectors when I got my LIM gaskets done and the car became alot quicker which slowly declined since last winter. So I don't know if the they are at fault but am just weighing out the variables. There are no codes or KR as I mentioned in my first post so I would think something would set if fuel was lacking to the engine which seems is not the case. So as some of us said it has to be the tune.