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Old 11-08-2010, 10:41 AM   #1
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psi drop

what is a with in reason psi drop from intake tubing and intercooler im @ 4psi drop and dont like it much but on a pos side i dont have to worry about my iat at all


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Old 11-08-2010, 11:22 AM   #2
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You loose psi with turns , going through the cooler, piping size etc , Its normal , if you get the boost Ref.from the intake and not the turbo psi side then your intake will have the target psi

Most systems only loose 1 -2 psi , are you seing 4 ?

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Old 11-08-2010, 11:51 AM   #3
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yes i drop 4psi my intercooler is way to big i have 2.5" coming from my sc to the cooler then 3" out and i do have a lot of bends because of the way i had to run the tubing this morning before the beepin snow started falling i took my intercooler off and connected the pipes i started it let it warm for a few then just gave a couple of quick revs and it jumps right to 11psi with the cooler on the most ive seen was 8psi at 72k :( which i dont like doing
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Old 11-08-2010, 11:52 AM   #4
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normaly running 5-6k i seen 6 or 7psi
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Old 11-08-2010, 12:03 PM   #5
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Thats right you have SC , You shouldnt be seeing that kind of drop , I dont know what everything looks like as for piping and things but no way you should be seing a 4psi drop

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Old 11-08-2010, 12:14 PM   #6
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you can almost see from my pic but my tubing starts at the sc 180s down and back toward the front then 90s into the coolerwith 2.5" tubing then from same side of cooler come out with 3" 90s up through the fenderwell to a slight bend then a 45 bend into my tb
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Old 11-08-2010, 12:19 PM   #7
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4psi does sound more like a boost leak, maybe your intercooler.
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Old 11-08-2010, 12:24 PM   #8
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thats something ill have to check out
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Old 11-08-2010, 01:18 PM   #9
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Connect the piping at the IC and see what happens

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Old 11-08-2010, 03:12 PM   #10
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i did that and it jumps to just under 11psi that y i was figuring my ic way way to big
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