Just got my vacuum gauge in

[streetdsmpwr]

Just got my vacuum gauge in and its reading 19 in. Hg. I heard that somewhere between 16 and 18 is good, so is my reading too high and if so what does that mean. I know that a low reading means a boost leak. Keep in mind it was a cold startup.

 

[BIRDCLAWTSi]

between 18 and 20 in. is fine. nothing to worry about.

 

[falcon8r]

The vacuum # you see at idle is very much depandant on camshaft timing/ignition and engine condition, in that order. To have 19hg. of vacuum is good. It shows a clean running engine that should idle smooth. If different camshafts are used, this vacuum # at idle can be much lower and effect brakes and sutch. Does not mean anything is wrong with the engine though. All part of the tune on an air pump of sorts. Tres...

 

[tunethis]

Just got my vacuum gauge in and its reading 19 in. Hg. I heard that somewhere between 16 and 18 is good, so is my reading too high and if so what does that mean. I know that a low reading means a boost leak. Keep in mind it was a cold startup.

That's not a bad reading. Also, with the higher idle (Rpm's) during a cold startup, the vacuum levels will be higher anyways. As the car warms and the rpms drop, the vacuum reading will also drop.

 

[streetdsmpwr]

Thats what I thought it started to go down as it warmed up. I just wanted to make sure everything was ok. Thanks for the help.