R32 Gtst Help

[slypsi]

hey guys i got a 32 gtst and i want to no if they have factory boost controler? because i put a single stange boost controller Turbosmart and it dosent switch boost and my mate said if they have a factory one then they wount move. its set on 12 standard and i put the boost up went around the block and it dident move!!! flicked it hight and low and stayed on 12...it pings to 15 and drops to 12 why is that. can sum1 help me like tonight within the next 10mins im working on it now!! thanks

[WazR32GTSt]

there's no factory boost controller mate...

what mods do you have?

i'd say your problem is either

- you have no mods and so upping the boost against a restrictive exhaust is doing nothing

- your boost controller is crappy and spikes then doesn't hold boost to the redline

i'd say its the boost controller

also, check to make sure you have it on the right way (there should be an arrow)

good luck,

Warren

[Cubes]

If its dropping off to 12 well... Its a manual boost controller.

You will need an ebc for it to hold boost.

Mine always dropped but to around 12.5psi. I modified the actuator and it held whatever boost I adjusted it to.

[WazR32GTSt]

my turbotech boost controller holds 14psi all day long and cost me $28.. the boost doesn't spike at all its graph is smooth on the dyno

[mad082]

turbosmart boost controllers are crap. i had a dual stage one for a while then i ditched it for my old turbotoech controller.

have you set the second stage up properly for 15psi?

it could also be that the solenoid is blocked or not switching over in it. mine did that. i'd flick the switch and you could hear it switch but the solenoid was blocked so it wouldn't change boost.

[xRHETTx]

What supporting mods do you have?

R32 gtst run standard 10psi so you are pretty close to the limit alreadt for a stock car.

Unless you have a full 3 inch exhaust and intercooler i wouldnt try to increase the boost at all.

[predator]

stock exhaust i bet..

what it is with people turning up the boost to 16 on a near stock car and thinking it's all fine? don't these things have instruction manuals telling you not to do that?

[WazR32GTSt]

mad082 - there's no 2-stage setup on an rb20 mate...

[Cubes]

yer my car sucks.. 2 different motors and i've always required an ebc or other means to hold boost. It always tails off to ~2-2.3psi above actuator pressure.

the turbotech ball/spring mbc's do work better than the usual bleeder. The usual bleeders do tail boost off on int. gates. They appear to work fairly well on ext. gates.