I understand under this setup the stock fuel pump is good for 280 whp. My question is, if I get my car tuned for 12 psi will my car be in this range or can I get it tuned for 14 psi. This will be on a stock LS block using a t3/t4 turbo. How much power are you LS guys pulling under 12-14 psi tuned?

 

i'd get 255 high pressure intank fuel pump along with injectors and add fuel pressure regulator

 

I would ask the person who is doing your hondata tuning and see what he suggests about the fuel pump. I think 12psi is pushing the limits.

 

i suggest just get a fuel pump and have no worries later...stock wont keep consistant flow/pressure under boost...

 

12 is asking to blow that motor. I know a few people that have ran 12 and the thing lasted until the end of the day. 1 had hondata, the other was jeff on homemadeturbo with his lsvtec. he's a retard.

 

i ran 13psi on my ls setup for awhile with stock fuel pump and 440s and had no troubles with it. although i did have to mess with the fpr and 440s to get that extra dose of fuel in at higher rpms.

 

I don't think 12 is asking to blow the motor. If tuned right the stock LS can handle 15 psi safely. The guys from inline run 15-18 psi on their stock LS motors. I can't remember his name but he posts on here a lot. Church Automotive will be doing the tuning, so I'll be in good hands.

 

Re: (nigel) 6:21 PM 7/27/2003


I don't think 12 is asking to blow the motor. If tuned right the stock LS can handle 15 psi safely. The guys from inline run 15-18 psi on their stock LS motors


and how long do these LS motors last at that kinda boost??

 

There are guys on here that have ran that high of boost for over 2 years daily driven. My car isn't daily driven, I drive it about 40-50 miles a week. Driving habiats have a lot to do with how long a car lasts also. I don't beat the crap out of car when I'm driving it around. The car will only see that high boost at the track and the car will be using race gas.