Boost Problem!

[Guest Des5001]

hey all, i done a quick search and couldnt get much out of it, im a basic person when it comes to cars.

my r33 was running on 12psi fine when i got it, i crashed it got it back, boost control is still the same as what i no unless the repairers played with it so i turned the boost up and it dont matter how high i turn it up the boost wont go pass 7psi!

i smashed the front end into a fence and had to get a new intercooler. i think maybe a boost leak? anyone got ideas on what i can do at home to fix it, i live in orange so no one round here can play with it. do u think its best to take it to sydney?

[joeyjoejoejuniorshabadoo]

Is it even connected still?

[Guest Des5001]

yes everything is still there. intercooler, boost controller and the lack of boost!

[joeyjoejoejuniorshabadoo]

All the lines still in the prosper place?

[Guest Des5001]

i think so, i dont no where any of the lines are ment to be, im new at this stuff, im willing to look if sumone could tell me where everythings ment to be tho

Edited August 14, 2007 by Des5001

[burgO.]

Did you try to turn it up before you crashed it? i.e were you ever able to boost it higher? just sounds like it isnt hooked up properly, when its running 7psi does it still have the dual boost? (5psi to 4,500rpm and then 7psi after)

[Birnie]

Sounds like something isn't hooked up correctly.

Show us an under bonet pic with the hoses hooked up etc...

[Guest Des5001]

i never played with the boost before i crashed it, i think the standard dual stage boost is working, 5psi - 7psi, im not to sure as im goin off the standard gauge in the dash, it sits on the half way line between 0.7bar and 0 so thats 0.35bar which i think is bout 7psi it does move a little bit sumtimes so i guess thats the standard boost settings working, it used to get right to the 0.7bar mark, thanks for all ur help.

here are sum pics

Edited August 14, 2007 by Des5001

[burgO.]

Hmm, the stock solenoid still has some tubing come off it.. is it blocked off? it looks like out of the two hoses on the solenoid you hooked the wrong one up, if anyone else can confirm this, hard to tell from pics

[Guest Des5001]

if the solenoid is the silver thing with 2 tubes goin to it and one free, then there is one on the top and one on the bottom, leaving the middle one free, my cousin has a r33 and on his the top one is empty and the middle one has sumthing on it and his is goin well, maybe thats it, ill try it tomora, ill swap them and see how it goes, thanks for noticing that, hope it works

Edited August 14, 2007 by Des5001

[MBS206]

It seems to be hooked up properly.

Are you adjusting the high or low boost on the boost controller.

If you turn the high boost thingy, you'll need to flick the switch for high boost to see what it's set at.

[Guest Des5001]

if i turn the boost as far as it goes on high and low as it goes on low and use the switch to switch between its makes a difference in power and how quick boost is gained but it wont pull pass 7psi still, i put my cousins boost controller on which is working fine and is set on 13psi in his car and when it was in mine it was still only pullin 7psi! got no idea, wanna fix it bad

[mad082]

if his controller didn't work on your car then there is either a boost leak or something restricting the exhaust, or the turbo is shot.

i would start by loosening all the cooler piping and making sure it is on properly.

[Guest Des5001]

just pulled the piping apart then reconnected it all and still doing the same thing. how do i check for a exhurst restriction? also if the turbo is shot, whats the best thing to do, buy a new one or get it reconditioned if possible?

[cosworth1971]

why is the original black hose still on the std solanoid?u can remove that! and whats on the other endlet of the std solanoid?nothing or blocked up?

[Guest Des5001]

there is nothin on the other nipple thing its just free.

[MBS206]

So what actually happens when you hit 6PSi?

And is this just off of the stock guage it's hitting "7"?

Put an aftermarket boost guage on.

You could be maxing the stock boost guage out (The sender unit)

Edited August 15, 2007 by MBS206

[R34GTFOUR]

NEVER trust the stock gauge, never ever. They are slow to react, and not accurate at all. Go get a boost gauge, even if you borrow one and just run a vacuum line from under the bonnet to the inside of the car with some one keeping a careful eye on it.

Does the car feel slower? If you were running 12psi before and it is actually only running 7psi now, you will notice a big difference.

Dont start adjust the boost controller with out a gauge to keep track, you could be running 20psi for all you know, especially if you dont have boost cut.

Everything is connected as it should be according to the photos, as long as the wires are connected properly to the switch inside your car it should be all good.

Even if the wires werent connected properly, you would still have a low boost adjustment since this is a dualstage.

[Guest Des5001]

i put a boost gauge on and hung it out the bonnet and into the car when we put my cousins boost control on and still 7psi, what else can i do?

and yes the car does feel slower

Edited August 15, 2007 by Des5001

[cosworth1971]

there is nothin on the other nipple thing its just free.

I wouldnt have the other end free block it or remove black hose and block that at Pipe where it meets the inlet pipe