what's your vaccum after you shift
#1
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what's your vaccum after you shift
after I shift my vaccum can usually reach 30mm Hg, I was just wondering if that was normal
-87 TII
-blitz BOV
-Defi boost and AF gauges
thanks
-87 TII
-blitz BOV
-Defi boost and AF gauges
thanks
#2
I'm a boost creep...
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Your units are wrong. 30mmHg vacuum is nothing. I assume you mean 30inHg (which is about 760mmHg). That's also impossible to reach, because that is zero absolute pressure, i.e. a complete vacuum. If your gauge really does get down to 30inHg, it's not reading right.
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A BOV cannot create vacuum, it only releases boost pressure. On a car the only thing that can create vacuum is a throttled engine, and it certainly cannot get anywhere near absolute zero pressure. Low 20's (inHg) is about as low as you'll ever see.
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#9
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when your engine is under deceleration, you will see higher vac. When engine braking into a corner, my boost gauge drops almost to 30.
12-15 vac (on a sport comp boost/vac gauge) is great at idle for our cars.... you start getting below 10 Vac. at idle and you may have apex seal problems. (or a vac leak).
Eclipses and Talons are different animals, its hard to compare a piston engine to a rotary.. so don't worry about what they run.
12-15 vac (on a sport comp boost/vac gauge) is great at idle for our cars.... you start getting below 10 Vac. at idle and you may have apex seal problems. (or a vac leak).
Eclipses and Talons are different animals, its hard to compare a piston engine to a rotary.. so don't worry about what they run.
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Originally posted by budgetracer
yeah I meant 30in Hg sorry about that but at idle I have 20 in so I guess that means there's a leak somewhere?
yeah I meant 30in Hg sorry about that but at idle I have 20 in so I guess that means there's a leak somewhere?
Check your gauge against another one if you can, coz it's not reading right.
#16
Jesus is the Messiah
Ancient Thread time (Ignore my last post in this thread, major typo)
The lowest I ever see is when I am engine breaking down a steep hill I hit just over 26inHG
Cruse at 18inHG and go up hills at 11inHG. WOT at 0
The lowest I ever see is when I am engine breaking down a steep hill I hit just over 26inHG
Cruse at 18inHG and go up hills at 11inHG. WOT at 0
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