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JRSC idle vacuum??????? is this right????

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Old 11-30-2005, 07:22 AM
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Default JRSC idle vacuum??????? is this right????

ok checked all my hoses there all OK no cracks nothing

idles like a rock but when the car is warmed up its idles at like -17 -18

BOOST GAUGE is find no kinks or anything

dont know what else it is im gonna replace the pcv valve and line thats the last thing i didnt check so......

but heres the thing my gauge acts very slowly it doesent react quick when u punch the throttle????? so? please help
Old 11-30-2005, 08:07 AM
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Default Re: JRSC idle vacuum??????? is this right???? (DeDonDeRosa)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DeDonDeRosa &raquo;</TD></TR><TR><TD CLASS="quote">ok checked all my hoses there all OK no cracks nothing

idles like a rock but when the car is warmed up its idles at like -17 -18

BOOST GAUGE is find no kinks or anything

dont know what else it is im gonna replace the pcv valve and line thats the last thing i didnt check so......

but heres the thing my gauge acts very slowly it doesent react quick when u punch the throttle????? so? please help</TD></TR></TABLE>

whats the problem? i dont get it?

mine is the same. stock GSR, JRSC, perfect compression/leakdown across the board

whats ur question?
Old 11-30-2005, 08:36 AM
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Default Re: JRSC idle vacuum??????? is this right???? (LSTEG96)

OK my vacuum is only -17 -18 at idle after warmup I was told it was suppose to be -20


so my vac is only -17 -18 and my boost gauge reacts very slow moving

LIKE going from vac to boost or just in general when u tap the gas it is slow

doesnt move instantaneious like it should for some reason
Old 11-30-2005, 08:55 AM
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Default Re: JRSC idle vacuum??????? is this right???? (DeDonDeRosa)

so its your gauge.....

get a defi...then come back
Old 11-30-2005, 09:39 AM
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Default Re: JRSC idle vacuum??????? is this right???? (m R g S r)

but i have tried auto meter gauges too this one i have now is a stewart warner mech gauge
Old 12-01-2005, 04:38 PM
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Default Re: JRSC idle vacuum??????? is this right???? (DeDonDeRosa)

ok well i i unplugged my mech stewart warner boost gauge on my car and ran a single rubber vacuum line from the manifold through the grommet on the firewall and hooked it up to a profession vac/psi gauge that one of my mech's at work let me borrow. and this gaguge says im reading -19 at idle and it is not slow moving at all. you smash the gas and the gauge is instantanious. what u think?? do u thing this would affect my gauge having the plastic line run into a rubber one then have the rubber one go to the manifold?? thats how my stewart warner one was. u think that was the prob? or just bad gauge
Old 12-01-2005, 07:34 PM
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Default Re: JRSC idle vacuum??????? is this right???? (DeDonDeRosa)

mines reads at about -21 at idle when fully warmed
Old 12-01-2005, 09:23 PM
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Default Re: JRSC idle vacuum??????? is this right???? (DeDonDeRosa)

These gauges are not 100% accurate. I've put a stewart warner gauge in my car and it read -18. then in the same car. switching out to the 40 pound boost gauge, it read -20.

I'd take it with a grain of salt.
Old 12-03-2005, 07:54 PM
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Default Re: JRSC idle vacuum??????? is this right???? (DeDonDeRosa)

It could be that your Stewart Warner gauge is a damped gauge, designed to move slowly.
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