Any one know roughly what boost pressure I should run ?

 

I have a 1991 Twin Turbo with HKS turbos, standard intercoolers, a mines vx-rom chip, hks dump valves, a straight through exhaust, Blitz Air Filter and a HKS EVC IV boost controller.

 

I was thinking of setting it to 1.00 kg/cm2 which is 0.97 bar/14.1 psi for the low setting and 1.15kg/cm2 which is 1.13 bar/16.3psi for the high setting and 1.25 kg/cm2 which is 1.22bar/17.7psi as my safety cut off/alarm ?

 

What are other people running with a setup like this ?

 

I will soon be installing an Apexi S-AFC II which is in my bedroom at the mo !

 

Cheers,

 

Olly.

Hi Olly,

 

You may struggle to get that sort of boost with stock i/c's and injectors. i run a similar setup and get detonation about 14psi.(at high rev range) you need to be very carefull as you don't wanna blow the engine. stock injectors will only give enough fuel for max of 15.5psi boost.

Ask yourself if it's worth the risk with stock gear??

IMHO it's not.

 

Zedhot