Joined
·
1,291 Posts
So at our GA Chapter Dyno day, I was hoping (and expecting) to get around the 190-200 mark with intake, tune, and gutted cat. Instead, I got 170ish. Needless to say, I was very disappointed. The part that really confused me was that J-Bo pulled around 206 with nearly the same mods... Here's the rundown:
J-Bo (xtreme)
3.5L Auto transmission
gutted cat
premium tune
K&N FIPK
GM Performance Parts exhaust
206.8 WHP -- 206.9 FP
Me (z85)
3.5L Auto transmission
gutted cat
premium tune
K&N FIPK
170.4 WHP -- 193.2 FP
Now, since J-Bo is running smaller tires (i think they're 245's...) and has an exhaust (I'm running 30" tires btw), does that make a 30 hp difference???
So there are 3 scenarios that could have made this big of a gap (vote it the poll)
1) I originally asked for the mid-grade tune, then made a note on the order form to do premium instead. Accidentally gave me the wrong tune? Not blaming PCMforless here, just speculating
2) No performance exhaust + larger tires = 30 less hp
3) I didn't hit the gas hard enough when I got to 3rd. (it was my first time doing the dyno)
So my next plan of action is to drive up to Dalton and do another dyno run, except get J-Bo to do one of the runs.
Whaddya think people?
J-Bo (xtreme)
3.5L Auto transmission
gutted cat
premium tune
K&N FIPK
GM Performance Parts exhaust
206.8 WHP -- 206.9 FP
Me (z85)
3.5L Auto transmission
gutted cat
premium tune
K&N FIPK
170.4 WHP -- 193.2 FP
Now, since J-Bo is running smaller tires (i think they're 245's...) and has an exhaust (I'm running 30" tires btw), does that make a 30 hp difference???
So there are 3 scenarios that could have made this big of a gap (vote it the poll)
1) I originally asked for the mid-grade tune, then made a note on the order form to do premium instead. Accidentally gave me the wrong tune? Not blaming PCMforless here, just speculating
2) No performance exhaust + larger tires = 30 less hp
3) I didn't hit the gas hard enough when I got to 3rd. (it was my first time doing the dyno)
So my next plan of action is to drive up to Dalton and do another dyno run, except get J-Bo to do one of the runs.
Whaddya think people?