Boost Problem

[jarrod83]

you should probably hold the tune off until its not spiking any more, they do run the tune pretty rich when it first comes on boost so you could probably get it tuned if you really wanted to, can you not just invest in a good boost controller? if its not your dump pipe/waste gate then it will be your manual boost controller, mine always spiked until i got my blitz sbc

[bwebbie1]

its a 3inch dont know what brand, yeah that what i thought about the tune. 1 of mates has to rebuild his gearbox he is doing that next week, i mite c if i can borrow his electronic boost controller to c if that fixes it. thanks

[robmbt]

its a 3inch dont know what brand, yeah that what i thought about the tune. 1 of mates has to rebuild his gearbox he is doing that next week, i mite c if i can borrow his electronic boost controller to c if that fixes it. thanks

WEll I put a hi-flo cat back in mine and the boost problem is still there so Im tipping that its the front pipe . I think I will bite the bullet and buy a bell mouth one instead of the split pipe. It started happening after I installed the split dump...

rob

[bwebbie1]

yeah mine happend as soon as i put the front mount on

[R33 S2]

WEll I put a hi-flo cat back in mine and the boost problem is still there so Im tipping that its the front pipe . I think I will bite the bullet and buy a bell mouth one instead of the split pipe. It started happening after I installed the split dump...

rob

yep i had a split dump/ front and changed back to bell mouth and it solved my problem

[bwebbie1]

yep i had a split dump/ front and changed back to bell mouth and it solved my problem

it wasnt my dump pipe its my frount mount i took it and tried the standard 1 now it holds 10 pound nice but why is it my frount mount causing the problem.

[Ultimategtr]

Thats weird! i have a similar issue. Maybe the FMIC has a leak or something??? What brand is your FMIC?

Mine is HDI.

[bwebbie1]

Thats weird! i have a similar issue. Maybe the FMIC has a leak or something??? What brand is your FMIC?

Mine is HDI.

yaeh i took mine of and got it pressure tested its all ok. so i brought e boost now just sorting the settings out highest its boosting to at the moment is 11.5psi, mine was a cooling pro just jap an elcheapo, so i would suggest getting an electronic boost controller if you havnt got 1 already.

[Ultimategtr]

Have you tried a lower boost setting? eg Low boost of 7psi and hiboost of 9 or 10??

[bwebbie1]

yeah have been playing around with it more, and its good no spiking.

[Ultimategtr]

so if u were to set it to say 7psi, would it hold it till the redline???