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Author Topic: Boost help/advice  (Read 1395 times)

Offline gazrn

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Boost help/advice
« on: August 21, 2014, 11:17:10 am »
Hi guys, had a 2007 GTI (32k on the clock) for a few months now and wondering if I have a boost leak. Before I bought mine I drove a mates standard gti and loved how hard it pulled, fast forward to buying mine and over the last few weeks I have been wondering if I have a boost leak. When I drive the car hard boost doesn't kick in strongly until after 3-3.5k revs and feels slightly laboured getting to that point. I changed my diverter valve for a newer rev G last week and felt a slight improvement but dunno if it was in my head or not. I bought an app that can read data from my obd port and it tells me that when I am accelerating hard in second and third boost is 17-18 psi. Is this normal ? Any advice or things to check would be greatly appreciated, I might be just being paranoid but people on here talk of being put in their seat at 2.5k revs :sad1:

Offline dazza

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Re: Boost help/advice
« Reply #1 on: August 21, 2014, 12:51:26 pm »
I think stock boost peaks at about 14-15psi.

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Offline GTI-Ross

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Re: Boost help/advice
« Reply #2 on: August 28, 2014, 09:47:24 am »
Yeah i dont think a standard GTI runs 17-18PSI, either the app is in accurate, or you have a dodgy map on the car.
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Offline R9OSW

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Re: Boost help/advice
« Reply #3 on: September 01, 2014, 12:08:26 am »
Standard gti surely don't run 18psi standard. Stage 1 mapping is around 22psi.

Think they run around 10psi boost iirc