-7 psi at idle
#1
Senior Member
Certified Car Nut
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-7 psi at idle
At idle for the last few months, my boost gauge shows around -7 and not -10. I've done exhaustive vacuum leak searces and can't find any. Idle quality is fine. IAC counts or position is active when it is doing this. It will sit at -10 when coasting. Is this an IAC problem?
#4
DINOSAURUS BOOSTUS
Expert Gearhead
Originally Posted by Hans
same issue when it gets cold....
We all notice it, exhaust ourselves searching for it and then accept the fact that with a smaller pulley and denser air.. you are simply pushing a little positive pressure toward the intake and reducing the overall vacuum from -10+ to ~-7psi.
#5
Junior Member
Posts like a Ricer Type-R
My 2" pulley outflows my bypass at idle in the heat of summer now. Not just winter. Same effect in the long run though.
John, you have the 2.5" on the car right now, right?
John, you have the 2.5" on the car right now, right?
#9
DINOSAURUS BOOSTUS
Expert Gearhead
Re: -7 psi at idle
Originally Posted by J Wikoff
Originally Posted by J Wikoff
It will sit at -10 when coasting.
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