I have a 05 ECSB Z71 with the high output 5.3 with 310 h.p. What kind of power gain can I expect with the STS kit running 5 psi of boost?

 

I have heard around 100 HP

 

This should answer all your questionsClick Here The 6.0 Dyno is my truck.

 

I gained roughly 100hp at all-wheels on my 5psi setting tuned for 91 Octane with the G-67 turbo and bigger injectors/fuel pump.

 

I am not sure what my new motor would make N/A. Probilby not much bc it is 8.1:1 compression. But with a STS, GT-67, FMIC and the right cam i will push atleast 525rwhp. Thats on a 4.8l though.

 

15-16lbs of boost?

 

No. Only like 13-14lbs on the street and 15lbs at the track maybe. I am worried that my heads will lift bc they dont have a thick deck surface. Once i get my act to gether and get a real job i will buy some AFR 205's and run around all day with 16lbs of boost

 

I found out my motor at 8.6:1 CR was holding up fine to 14psi

 

Thanks guys, now I just have to get the wife convinced to let me drop the money on it.