Profecb Sii Problem

[Turbo Dave]

I put a ProfecB SII On my car and have set it 0% in Low and Hi.

But it still boosts over 10psi according to the LCD screen, I have the start Boost at 0, and the Gain on 10%.

Before I fitted it it used to boost right on the middle notch of the factory gauge which I beleive is about 5-7psi.

If I set it 0% will this get me the lowest boost setting possible? I am trying to get 7psi in Low and 10-10.5psi in Hi!

The car is a R33 S2 auto and has stock motor and turbo but has 3inch exhaust, fmic and Apexi Power Intake.

Would the car be boosting higher due to the free flowing setup compared to standard?

Any Suggestions appreciated.

Dave.

Edited July 9, 2007 by Turbo Dave

[Beer Baron]

if you want the lowest possible boost just turn it off. then make your hi boost either the lo or hi setting on the controller and just turn on the controller when you want higher boost. done.

[HR31_RB20DET]

if you want the lowest possible boost just turn it off. then make your hi boost either the lo or hi setting on the controller and just turn on the controller when you want higher boost. done.

Yep thats what I do, turn it off and gets 7 psi, have set low to 10 psi and high to 13 psi.

[Haysey]

pff thats no fun... try 10psi (for a little bit of traction in the wet)

14psi for chopping v8s at lights

and 19psi for tyre shreading no traction performance

lol

[PM-R33]

pff thats no fun... try 10psi (for a little bit of traction in the wet)

14psi for chopping v8s at lights

and 19psi for tyre shreading no traction performance

lol

Hahaha and 25psi if u need an excuse for the misses to do an engine rebuild

[siddr20]

and 30psi to be fully sick!!

Um check the tut section. Im pretty sure theres a guide on how to use this controller, which also shows you how to change settings etc..

[Turbo Dave]

When its at about 3500-4000rpm it holds about 10psi but if I hold full throttle, When it reaches 6000 or so its boosting to 13-14psi. Shouldnt its hold the 10psi i set??

[Turbo Dave]

Ok Ok, Just read the Tutorial, and if Im understanding it right, If i have everything set at zero and im still boosting to 12.5psi,thats the lowest I can go?

I've read that its not safe to do so on a stock S2 turbo! Could my actuator be stuffed??

[Beer Baron]

I did already say it once, but i will say it again. the lowest you can go is with the controller turned off. turn it off and see what boost you get. that is your 'base boost'.

[Nismo_God]

I also was fairly shocked with my low boost settings...

have it set to nothing and it sits on .5 bar under normal to medium driving.....however i found that under full acceleration it hit .9 bar......

so you car drive the car with the boost controller off?

cheers

[Beer Baron]

yep, just turn it off. it will still display boost too. but boost will be at the lowest it can possibly be (ie wastegate pressure only).