GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: steve_mk4t on 16 March 2012, 17:45
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think i have a boost leak :sad:
fitted a boost gauge yesterday took her for a spin and i was peaking at abwt 16-18psi and -25 on idle
bust it would hit 18psi then drop all the way back to abwt 8 to 10 psi :sad:
still pulls like a train just a bit stumped no real sign of leaks looking over then car
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Cpuld be your n75?
Had it scanned?
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nah i aint dont know anyone with one that aint guna charge me though the roof so think im guna have to invest in one
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nah i aint dont know anyone with one that aint guna charge me though the roof so think im guna have to invest in one
worth while investment!
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yeah guna get one of those ones of ebay abwt 20 qiud
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yeah.
as for boost leaks, go over everything with a fine tooth comb!
the pipe under neath the inlet manofold ( also connected to the inlet mani) is prone to splits as its a oil breather hose.
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going to check which colour spring i have in my forge spliter valve cos this was fitted when i got the car could dis be a problem?
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boost doesn't just hit 18psi and stay there until the redline...
It will peak then drop slightly, then tail off the higher up the revs you go
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so there may not be a problem then??? but to drop 10psi???? after it has peaked? i have seen videos on you tube of golfs where it will peak and then drop 2 to 4 psi then hold
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mine used to do the same mate, nothing major to worry about.
Could be a boost leak but may not be. You could have a weak actuator, max'd out MAF to get a good idea you would be best getting some data logs done.
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okie dokie thinking of a bigger turbo any way, good excuse to use u the missus :cool:
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Those figures are about right tbh.
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why drop so much?
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Small turbo's cant hold 18psi all the way through rev range.
As said probably a leaky actuator..
Mine used to peak at 18 and hold till something gave and knocked itself back down to 10psi in milliseconds and nearly sent you through windscreen..