R33 Rb25De To Rb25De+T Problems

[AlexWaltham]

Hi everyone

Im just after a little help iv converted my na to turbo and it was running beautiful until about a month ago it has now lost alot of power and you can hear the turbo whinding down and its pretty loud I replaced all the parts with gtst parts whem we converted it and I cant figure out why its doing this can anyone please help me

Thank you

[Dan_J]

is it still boosting?

my stock turbo started making noises before it blew

[AlexWaltham]

Yea its still boosting just going no where

[Dan_J]

could be boost leak, cooler piping only just popped off?

does it stall easy ?

[AlexWaltham]

If the revs are to high when I put the clutch in yea it does stall easy

[AlexWaltham]

It does missfire at high rpm bit I think that might be the coilpacks cause they looked pretty old bit all this happened before the missfiring

[AlexWaltham]

Im gonna buy silicone bends for the cooler tomorrow and new clamps and ill let you know how it goes if it doesnt fix it looks like ill have to take a look at the turbo

[Dan_J]

also double check that no vacuum hoses have a leak, i had a leak at a vacuum hose causing my 15psi turbo to only make 10psi leaking 5psi

[AlexWaltham]

We think it might be a blocked cat converter it must have collapsed thats why I can hear the turbo whinding down im taking it to a exhaust shop after work see how I go fingers crossed

[AlexWaltham]

Ill check for vacuum leaks to is there an easy way of doing it

[fyjosh]

http://www.youtube.com/watch?v=zMok2y05jNE

smoke test it, see if you can find any leaks.

[Ben C34]

search how to pressure test. Most people have a compressor, I don't know anyone that has a smoke machine.

[fyjosh]

superben, did you watch the video? the annoying video guy used a cigar

[Ben C34]

superben, did you watch the video? the annoying video guy used a cigar

no I didn't watch it, I have actually seen that one a will go, man that dude is annoying!

Pressure tesy is heqps better tho7gh as sone leaks dont occur untill pressure is in the pipes.