Car down on power, no changes made.

SS_Firehawk

So back in May before ZDayZ, I had my car tuned. List of mods are...

F.I. CBE & RTP's
Z1 ceramic coated headers and CAI
Ported upper manifold, lower manifold, and throttlebodies
72 row oil cooler
Ecutek tune

She put down 332/270, but power was down everywhere under 7000rpm compared to my previous tune.

Last year with stock headers, nothing ported , and full AAM exhaust/ RTP's, with an Uprev tune, she made 327/270

Since my tune in May, my car makes an odd squealing noise between 3.5 and 4k, only under load. I can maintain an rpm in that range and it will continue squealing. It gets worse as the engine warms up.

My butt Dyno was telling me power was down. So I went to Proven power to get on their Dyno and verify. The first pull was 295/237. That's the lowest I've ever dyno'd with this car. The next pull was 305/239, again that was still low, especially the torque. After letting it cool for 15 minutes, we ran one more and was able to eek out 312/245.

This was a different Dyno, but still a Dynojet, it was also about 8-10 degrees warmer, which understandably reduces power. But this is beyond normal correction, weather or different dynojet Dyno. The tune looks a tad richer than before, but nothing terrible. Even then, I've never seen this many bolt ons and tune on a car and perform worse over time.

I'm trying to get some time with Martin so he can data log the car and check the tune. My 1/4 traps are about 1mph slower than what I was making stock. Elmo also handed me my *** when we were both tuned the same night, by the same tuner, and dyno. I was up 10hp and he stomped me with a slipping clutch and short shifting at 7k. I'll update this with some Dyno pictures soon.

Any ideas as to why my power is rubbish would be welcome.

__________________