Mine used to read around 16in while idling in neutral and then climbs to around
18in where it rests until the next throttle blip - then it hovers around 16 then
builds in 30s or so to around 18. This was with the stock cam. My other 360
was 15-17in. I understand that anything over 12in at idle is ok w/the more the
better.
Latr,
Shane
Bob Tom wrote:
> At 10:30 AM 5/21/01 -0400, you wrote:
> >Hi Bob,
> >Thanks for the info. What does yours read in neutral? I'm wondering
> >because I have a 5-speed and this is how I took the reading on mine.
> >Wouldn't being in 1st gear with an auto trans cause the vacuum to increase?
> >Thanks, Doug Myers
>
> Doug
>
> The previous figures came from a freeze frame from the scanner while I was
> waiting for the okay to go around the water pit on one of my runs.
>
> With an idle of 640 - 672 rpm (goes back and forth), gear in neutral,
> baro. reading of 29.4 iHg, coolant temp. at 172F, the vacuum read
> is between 15.9 to 17.6, with variance about 17.0 and then about
> 16.0 and then back again about 17.0 etc. with the occasional read
> of 15.9 and 17.6.
>
> Bob
-- '96 IndyRam-HisIndy-MPI/TB/Pulleys/AccelCoil/MPComp/HookerSuperComps/CompTAs '96 IndyRam-HerIndy-numbered(#142)"Track Truck" '74 Triple-Black Dodge Challenger Rallye 360 home-brew EFI R&D vehicle '68 Black Corvette Convertible 427 (For Sale)
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