Correct boost figures

Darrenspain · Mar 7, 2010

1999 S3 APY,Please can someone tell me the correct boost peak or hold psi,I have stage 1 map not sure company,I have been running j valve for couple of years now cant stand boost spikes going to fit new standard valve so i cannot remember what boost was before fitting j valve.

Lemon S3 · Mar 7, 2010

Standard is 15psi, stage 1 is about 19/20psi.

vetch · Mar 7, 2010

Darrenspain said:
1999 S3 APY,Please can someone tell me the correct boost peak or hold psi,I have stage 1 map not sure company,I have been running j valve for couple of years now cant stand boost spikes going to fit new standard valve so i cannot remember what boost was before fitting j valve.

This might be a daft question, but what effect are the boost spikes having on the driveability of the car? I was considering a J valve to add a bit more torque on the cheap!

Darrenspain · Mar 8, 2010

I would stick with standard valve the j does give bit more boost but not very smooth sometimes jerks feels like misfire,thinks it's hitting limp mode.

Correct boost figures

Darrenspain

Registered User

Lemon S3

Alex

vetch

A4 Avant

Darrenspain

Registered User

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