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Boost Issues

legend

By legend,
in Engines & Forced Induction

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legend Community Regular

legend

Posted
Posted

Hey all,

don't know if anyone has experienced this one before.... I've got a bleed valve on it to bring it up to about 10PSI but through the rev range it only hits to 10psi after it revs past 4000rpm. anything below that, its still at the stock 7psi. Can anyone help with any 'constructive' :D suggestions to fix this problem???

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rs73 Grand Master

rs73

Posted
Posted

Bleed valve is a cheap way to increase your boost, but not as reliable as Electronic Boost Controller one. solution perhaps is to get a proper electronic boost controller like Apex'i AVC-R or HKS EVC.

I have a bleed valve as well, still saving money to get an EBC.

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TTT Grand Master

TTT

Posted
Posted

for $135 you can get the Turbo XS High Performance Boost Controller (HPBC)

it has 2 adjustments.

1 = increase boost

2 = reduce or eliminate wastegate creep.

the second adjustment is what makes the boost come on earlier and harder.

R33's standard boost is 7psi.

R32 is more like 9 or 10psi standard.

as mentioned, if you put a boost controller on, you need to use that INSTEAD of the standard boost solenoid...

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Guest INASNT

Guest INASNT

Posted
Posted
Originally posted by Hicks

Probably because the stock turbo cant make more than 7 pounds of boost below 4000 revs.

i doubt it as the r33 series 2 spools up real quick coz of the plastic comp wheel.

at the moment with my half complete project i can get 12psi boost at just under 2000rpm with lightened flywheel, adj cam gear and pfc tune.

Legend

I think you have your stock boost solenoid still connected in the line. Bleed valves are cheap and nasty, dont ever expect good boost control with them.

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Guest INASNT

Guest INASNT

Posted
Posted
Originally posted by legend

INASNT: me thinks I'm going to have to invest in an EBC...:) $$$

predator666: nope, got a greddy boost gauge :)

yes you better. I think my greddy profec b spec 2 also helps bring boost on early!! Only think with the spec 2 is that you have to *** around with it alot to get it to work the way you want

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predator Grand Master

predator

Posted
Posted

yer.. with my profec it comes on at about full boost at about 3500rpm from what i remember.. not bad considering just S-AFC, zortst, cooler combo. it'll make a difference..

really depends on the bleed valve.. some are worse than others..

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