Typical Idle Vacuum Levels

[blwncvc]

I own a SOHC D-Series and my idle vaccum is 20in and it's pretty much the same hot or cold.

[waveoff]

I also get about 15" when cold and then 18" when warm.

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Fred G.
'97 Civic EX supercharged http://www.geocities.com/motorcity/track/4059
Beech 1900D driver...2,558 shp, 10,000+ ft./lbs. tq., top speed 331 mph

[lundgren]

Alititude also plays a roll. Here in denver, my gauge dropped from 20 to 18.

[HondaCivicEx98]

cold around 18, when warm is around 20.

[zip]

Used to be 18-19" last year. This year it's 20-21"

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Mods

[INTEGRA LSSC]

18" cold 20"warm. 12" warm seems awfully low. i would get a vacuum tester to see if your guage is working properly. i believe some auto parts stores rent them out or you can buy them relatively cheap. as lundgren said altitude does play a factor and it seems weather does too.

[D-X-Factor]

19" cold, 20" warm

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'99 Civic HB
D16Y7

[Ausmith]

I'm curious to see what other SOHC D-Series owners are seeing for a vaccum level at idle.

I see around 15in hg cold and 12in hg warm.

Trying to determine if I have a leak somewhere or if my guage is messed up.
Thanks

Clayton

[stealthex]

I get about 15 when cold and 18 when warm

[Ausmith]

Thanks gang. What's weird is that my boost level reads about where I estimate it should be, but the vac is just a little low.

I will definately check the guage with a vac tester.

Thanks again

Clayton