whats a safe psi setting for an ls as a daily driver

 

Psi isnt everything..search around and see what other people are doing and have a hp goal in mind.Also are you stock block or built?what turbo?theres more to it than just boost pressure.

 

need to know more about car!

 

Safe ?

Safe would be to leave it stock and buy a car that came with a turbo.

PSI depends and a lot of factures, we need more input.

 

Guys i think he has a Stock ls. I would say if its a daily driver and a weekend worrier just set it at 4-6 psi nothing high.

but again it depends on what set-up you have, too many variables

 

I hate answering this question all the time.

PSI doesn't mean anything unless you're reaching into the upper limits of a turbo's efficiency range and have to worry about IATs spiking OR have to stay within the confines of a MAP sensor.

The safe limit for a stock B series like your LS is about 300whp give or take. The PSI needed to get there is basically irrelevant. For example, i've made 315whp on a stock block GSR for 2 seasons at 10.5psi (limited by the stock map) and had no problems on 91 octane. This summer on E85 (~105-106 octane) i'm shooting for 400+whp on the stock block at around 15psi on my S256. Its all in the tune...

Variables:

-turbo efficiency
-intercooler efficiency (both of these factor into IATs)
-MAP sensor
-static compression
-fuel grade used