Sandham Posted June 22, 2013 Posted June 22, 2013 Hi, just finished fitting a new oil filter housing and racetech braided oil feed. All fitted and tightened up no leaks ect.Took the car for a drive and seem to be loosing boost at 4k revs. Before i changed the oil feed it was boosting to 14ish psi and holding it now it struggles to get to 10 before dropping to 3/4 psi and making a loud whistling noise?The only thing i can think of is that the rubber in the efi pipe at the turbo end had split, i refitted using this rubber. Could this cause my problem? Quote
StuDoc 72 Posted June 22, 2013 Posted June 22, 2013 No its a boost leak between the turbo n throttle body somewhere on your intercooler pipes. Quote
Sandham Posted June 22, 2013 Author Posted June 22, 2013 Put a new rubber in the end of my efi and has fixed the problem to an extent, boosts to around 12 psi. Im sure it boosted to 14 before, ill have a look when its not raining Quote
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