I installed a autometer phantom II vacuum/boost gauge on saturday and was wondering what kind of readings should I be getting? I have a 99 9-3 SE HOT with the stock T25
I installed new plugs, and tapped the BPV vacuum line which I replaced with 4mm silicone hose.
When I start the car the gauge shows around 17in HG of vacuum, it seems that I really have to accelerate to get the car to boost past 0 psi.
Driving on the highway I hit it pretty hard and it boosted to around 10 psi, but when I get off the gas the gauge reads around 20-25 in HG, is that normal?
If the gauge is functioning properly, it seems that when city driving, the car spends most of its time in vacuum...
What do you think??? Are there any alternatives to the crappy plastic vacuum line you get with the gauge?
I installed new plugs, and tapped the BPV vacuum line which I replaced with 4mm silicone hose.
When I start the car the gauge shows around 17in HG of vacuum, it seems that I really have to accelerate to get the car to boost past 0 psi.
Driving on the highway I hit it pretty hard and it boosted to around 10 psi, but when I get off the gas the gauge reads around 20-25 in HG, is that normal?
If the gauge is functioning properly, it seems that when city driving, the car spends most of its time in vacuum...
What do you think??? Are there any alternatives to the crappy plastic vacuum line you get with the gauge?