exhaust question

[mortsayyed]

I just intalled a 3" turbo back exhaust system and I feel like I am losing power. I am running at 8psi because I am trying to break my car-in with the new motor rebuild. Any reason why I am losing power? Before, I was able to beat a stock S2k, but the other day, I lost to an SI with intake and exhaust. The driving was the same but I just felt like I was losing power. I have done nothing different to my car since then so I don't know what it could be. Any ideas? I can HONESTLY feel my car driving slower than it was before. It really sucks...

Mort

 

[L2RTSiAWD]

You will take a loss on low end and since your only running 8 psi you cannot get all the mid and high-end power the 3inch exhaust can give you.

Later,

 

[mortsayyed]

So John, I have a 16G in my garage right now. I was going to put it on today. What psi can I run it at until I can get my fuel set-up installed this weekend. I will be putting the 16G on stock injectors, ported O2 housing with a 14lb actuator and basic moda, intake, 2" throttle elbow blah blah blah. I will be installing a regulator, pump, injectors and SAFC this weekend. Should I just wait to put the turbo on then?

Thanks for all your help
Mort

 

[InferiorWang]

usually about 14 to 15 psi before a fuel pump

 

[L2RTSiAWD]

Without a fuel pump I would not go above 10. With a pump but no injectors or AFC 15psi is fine.

Later,