i have a 85 supra. with mk3 ct-26 stock turbo. n i boosting 5. n i want to ssshhhhoooott.... nitrous to. n i want to know whats the max boost i can boosting on my mk2 motor. cause i dont want to get BHG. so please tell me whats the max psi or boost i can get to. so please help me.

boost is not the reason the head gasket will blow

the factory torque settings are too low.. over time they just blow

if you haven't done a head gasket with arp head studs & metal head gasket.. don't even bother with nos

i did do a polish port n shady on the head to. n i upgrade my injector into 580cc. but one thing is that its suck is that i just use the stock head gasket tho. is that gonna get me to BHG that easy. or its ok it still do the job for me. one more thing is that i want to know whats the maxx boost i can boossting on my mk2 tho.

what did you torque the head gasket to?

also a composite head gasket (stock) will not hold nos over a long period of time

lose the nos idea until the engine is prepped for it
just do bpu mods and up the boost to 10psi

why would you do the injectors and not the head gasket?? its just asking for trouble. are you going to run a wet or dry nitrous system?? are you going to run a single or direct port system?? if you trying to squeeze out all the power-go a wet direct port system. its the most expensive, but it will give you the most power.

as right now i running a dry system with a direct port. with 32 shooot.... n i were think bout upgrade to a wet system but that will be a little bit longer cause i go on vocation next week n not coming back till the middle of the month next month. i boosting 5 on the turbo n i shoot 30 on the nitrous. so whats the max you think it will be kool.

i still say... no metal head gasket = won't last long

it's up to you

but just remember, anything that is suggested here is suggestion only, no member that posts here will take responsibility for anything that happens to your engine due to being unprepped for the application you wish to run

i say max 10psi
stock gaskets usually take a hammering at 15psi and don't last long at all... if you push nos as well you will KILL IT