Standard gze in ae86

[Sprintn]

Hey y'all just wondering if anyone could tell me what the safest psi would be for my 4agze? I'm taking in on the track and wanna give it abit more boost without cooking it 😜.. Thanks for your help in advance..

[johl]

just buy the small boost pulley. i think it takes it to 11 or 12 psi

[Sprintn]

Oh ok fair enough you know where I can get one of them from? It's currently at like 9/10 now with no cooler

[johl]

so you have blocked off the abv to get to that pressure? i would definitely have an intercooler even with stock boost. the pulleys pop up every now and then maybe put up a wanted to buy thread

[Sprintn]

Nah its not blocked I've just looped the pipe around atm.. Not good? Oh ok fair enough cheers

[Hen may possibly be a nut]

I'd have no issue mounting whatever I could to get the most boost possible. In my opinion the motor can handle it.

The issues I'd forsee are high intake temps and the inefficiency of an SC12 meaning the last few psi give minimal benefit (get an intercooler), and the chance of melting/blowing up the SC12. But they are cheap and easy to replace and I think stories of their meltingness are exaggerated.

From the practical side I ran 11psi with an SC12 for years without issue and 16psi with an SC14 briefly without problem.

[Sam-Q]

get some water injection, apart from helping your effective octane it also is meant to improve your supercharger efficiency and hence raising your boost.

[Sprintn]

Thanks guys, Sam what is this water injection your talking about?

[timbo]

I think he is talking about having water sprayed on to the intercooler?

[johl]

Or a water to air cooler rather than air to air? Have a look on pwr's website