[Shotimes] Vacuum Specs

[Ron Childs]

The vacuum should drop to zero (or near zero) when the throttle if floored. It doesn't matter if the secondaries are open or not. Manifold vacuum is produced by the pistons sucking in air. If the throttle is open, it is easy for air to enter the cylinder, hence, less vacuum. A high vacuum condition would be when you are decelerating in gear, with the car turning the engine against a closed throttle (engine braking.)                                                                                                                         -Ron Childs   '91                                                                                              

"Chris \"Zap\"" <zap@columbus.rr.com> wrote:I believe that the vacuum gauge should drop to 0 as soon as the secondaries
open... that's about all I know about it but would be interested to find out
more too!

~Chris
----- Original Message ----- 
From: "Bruce Malachuk" 
To: "SHOtimes" 
Sent: Wednesday, May 21, 2003 1:25 PM
Subject: [Shotimes] Vacuum Specs


> I know I saw this posted somewhere, perhaps on the shoforum, but does
anyone
> have the vacuum specs for a SHO at idle, and then all the specs for
diferent
> maladies that can befall a car?
>
> Just wanted to see how my idle vac matches up.
>
> Thanks
>
> Bruce
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