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View Full Version : HELP!! boost leak :(


Nialle
11-07-2012, 22:33
I did the cup mod to my 5 the other week took it out today and when i let off the throttle she squeeks? so i decided it didnt sound right, put it back to standard and its still the same, and instead of having 10 psi boost ive now got 20?? how can i find the leak?
Brigsy
12-07-2012, 08:23
Sounds like you might have the actuator plumbed in wrong or the pipe to it may be split, defo not a boost leak if you have 10psi more than usual
alex barker
12-07-2012, 08:39
As above, you ain't leaking boost. Somehow your actuator pipework is leaking and or is setup wrong. This has the same effect as fitting a bleed valve. Bleed more air off to raise the boost. I would start again using the cup mod, try and use only 1 piece of hose and go from there.
Romil Davda
12-07-2012, 14:33
I can only assume you have a 2 port actuator and you have plummed the wrong port. Can you check if you have 2 ports and if you do, which one has the pipe coming off it? (port 2 is closest to the wastegate)

It is port 1 you should have the pipe coming off to the carb (or boost controller).
SirSamuelOfBuca
12-07-2012, 16:01
What romil said!

Definitely not a boost leak if your now getting 20psi.

First port of actuator should have pipe on other port doesnt need anything on it :)

Good luck.

Post some pics if you have no luck
Nialle
12-07-2012, 18:09
Is the front port of the actuator the one nearest the front of the car?
Romil Davda
12-07-2012, 18:57
Is the front port of the actuator the one nearest the front of the car?

Yes, unless you got your turbo on the wrong way!
Romil Davda
12-07-2012, 18:58
Is the front port of the actuator the one nearest the front of the car?

The back port is the one closest to the wategate (thats the right answer)
Nialle
12-07-2012, 22:12
Problem solved :) thanks for the advice chaps :)
Jonny5
12-07-2012, 22:45
Problem solved :) thanks for the advice chaps :)

What was wrong?
Nialle
12-07-2012, 23:20
Did the cup mod on boost lines n got strange results lol, turned out id plumbed from wrong port on actuator haha, cant help it, gta admit im 100% novice haha :)
GTphil
13-07-2012, 08:50
This thread alone is worth the joining fee for ya! £25 And it's sorted simply, if you had given it the beans for to long it could have cost you an awful lot more!!

:agree::agree: