Normal to have 19 psi boost with current setup?

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Jun 14, 2009 | 09:18 PM

#26

bkenchan

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Quote:

Originally Posted by GoodfellaFD3S

This is what I was getting at back in post #11.

You're reading 18 to 20 inches of mercury at idle, which is actually very good. Your peak boost is 12 psi, not 19 as the thread title suggests.

The peak 12 is when car is moving and accelerating. the 18-20 is from the car at idle and rolling.

Jun 14, 2009 | 09:19 PM

#27

bkenchan

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Quote:

Originally Posted by baggedoutmazda

sounds like you are confusing boost with vac. right side of 0 when boosting. left side of 0 when at idle?

Yes, I know there is a vac and a boost side. The needle is on the same side though, when I am taking these readings. Sorry, I will get a picture when I'm off work.

Jun 15, 2009 | 05:39 AM

#28

bkenchan

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Ok scratch all that people. I admit. I was wrong. I mixed it up with my other car where the gauge only has pressure and no vac. With that said, are those numbers good?
Thanks for all the info. It is all worth knowing.