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Old 05-05-2006, 03:05 PM   #1
sloveniaboy
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Vacuum Pressure

What do all you FI guys read for Vacuum at idle? I used to read 20 when the kit was installed a couple of days ago, but then I found a kink in the line running to my autometer boost gauge and cut it out....reconnected the line and since then I read arround 17 at idle...

what do you guys have for vacuum at idle?
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Old 05-05-2006, 03:31 PM   #2
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i run everywhere between 20-16 area. its pretty normal at where you are Rob
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Old 05-05-2006, 04:06 PM   #3
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Post pics of the new install!
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Old 05-05-2006, 04:47 PM   #4
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it depends on ur comp
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Old 05-06-2006, 03:39 PM   #5
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16-20 is good with any FI motor.
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Old 05-06-2006, 03:45 PM   #6
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Quote:
Originally Posted by Furious
i run everywhere between 20-16 area. its pretty normal at where you are Rob

hey just curious..

does your sig... suppose to say "owned" instead of "pwned"
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Old 05-06-2006, 04:21 PM   #7
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hey just curious..

does your sig... suppose to say "owned" instead of "pwned"
i didnt make the sig someone else made the GIF, i just stole the mother
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Old 05-06-2006, 07:37 PM   #8
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Quote:
Originally Posted by E36 Power
Post pics of the new install!
soon soon
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Old 05-08-2006, 08:58 PM   #9
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ok well remember how i was at like 17, well now it sits near 15 and sometimes 14...i must have a leak somewhere, shiznad, time to search for it
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Old 05-08-2006, 09:31 PM   #10
BMW325BMW
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Rob!! Take me for another boot. I'll figure it out for you
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Old 05-09-2006, 04:42 PM   #11
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Rob!! Take me for another boot. I'll figure it out for you
lol, fo sho
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Old 05-09-2006, 11:56 PM   #12
BMW325BMW
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i propably cant figure out what it is but i'll buy you an ice capp instead
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Old 05-10-2006, 12:50 AM   #13
sloveniaboy
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alright, so the pressure dropped even further today to arround 14-13 at idle so my feelings that I had a vacuum leak somewhere were right and tonight we sourced it....and guess what, the pressure went right back to 20 for vacuum....

so this goes out to all you boost heads, check your lines/piping and check again and again and again, because I have a feeling we should all be arround 20 with good motors....

the line in question that was leaking was a line leading to the fuel pressure regulator that had ripped at the nipple, from the install this is the line we used a T off to branch a line into our boost gauge and one other to the little nipple on the underside of the intake manifold near the firewall....

lemme tell you, most of you know, working with that vacuum line to the regulator at the firewall is a pain in the ass...so get it right once and never look back (most guys on here prob dont have these problems cuz they know already to look at these areas but to those just getting into the boost game this is a good warning)
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Old 05-10-2006, 12:59 AM   #14
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good find dude
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Old 05-10-2006, 06:05 PM   #15
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glad i could help
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