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Old 04-18-2007, 12:05 AM   #1
Derk_eliso
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vac

-5 on the boost guage... at idle... does that mean vac leak or is that normal?
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Old 04-18-2007, 11:49 AM   #2
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Re: vac

i really dont no whats normal for vac, but i vac usually between -25 and -16 (16 at a cold start, and 24-25 when im in gear and coasting) (i usually sit at -19 vac)
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Old 04-18-2007, 03:47 PM   #3
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Re: vac

Should be a little lower, yes
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Old 04-18-2007, 07:20 PM   #4
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Re: vac

yuck.. hmm okay
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Old 04-20-2007, 02:07 PM   #5
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Re: vac

you have a vaccuum leak....

where did you tie in your vaccuum ports?? You're supposed to tie them into the vac hose running to the brake booster BEFORE the check valve. One thing that might make your life easier is a vaccuum manifold....like mine


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Old 04-20-2007, 02:08 PM   #6
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Re: vac

if you need pictures of anything, let me know and i'll try help you out...also if you want one of those vac manifolds, i can get you one w/ fittings for less than $50
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Old 04-20-2007, 05:46 PM   #7
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Re: vac

That little vac manifold is a good idea. Looks like it makes for a cleaner install of all the lines.
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Old 04-20-2007, 08:21 PM   #8
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Re: vac

yeah, I fixed it.. I had a brain fart... and installed the boost controller between the fpr and the bov instead of the line from compressor to wastegate... so changed that around and startup vac = -15, op temp = -20... so I'm good...
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