I recently had my car dyno tuned, It put down 344hp, 226tq. peak power was around 7500 rpms. The boost was a wastegate/8psi. It was tuned conservatively afr in the low 11s.
Im thinking of turning up the boost to 10psi to get closer to 400hp. Would that be safe?

setup: comp stg 5 clutch/pp/fly, sc61 with ported cover/63 exh housing, walboro pump, 1000cc bosch injectors, aem ems, sidewinder style manifold, 3 inch open downpipe. stock motor with 40k

ive researched mult threads with 10+ psi, but didnt find anything on how long it lasted.

thanks for your input.

 

perfectly safe with a good tuner IMO.

DO IT!

 

very safe. i run 10psi SC on my stock hg with zero concern. people have run WAY more with no problems. psh if i had your setup i would crank it to 450+whp on pump and call it a day. i run similiar power to you and i feel like i am standing still sometimes

 

yeah I think you could add 2-3 more psi you may want to get a AEM map sensor. I think it would last just fine as long as you don't beat on it every day

 

I'm doing 18psi with water meth boost juice.

 

im running 19 psi on stock hg with w/m injection .

 

Do whatever your tuner is able to do, pushing it past HIS limit is what destroys motors.

 

He will run more, he's tuned multiple s2ks. Also I have a gm 3 bar map

 

might want to specify fuel

 

I don't think there is "max boost" number for a stock headgasket.

They are good gaskets, and hold up to tons of boost.