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Old 05-01-2011, 12:19 PM   #1
JimW
 
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kenne bell 2.8L vacumm at idle on LS3?

kenne bell 2.8L vacumm at idle on LS3?

what the title says, im seeing 17.5 at idle .. and can't locate a leak using tb cleaner or propane.

anyone else have a vacumm gauge that can tell me what yours is ..
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Old 05-02-2011, 12:36 AM   #2
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thats pretty much where my maggie is at on idle before the cam and bounces around that with my current cam.
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Old 05-02-2011, 06:34 AM   #3
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Quote:
Originally Posted by JimW View Post
kenne bell 2.8L vacumm at idle on LS3?

what the title says, im seeing 17.5 at idle .. and can't locate a leak using tb cleaner or propane.

anyone else have a vacumm gauge that can tell me what yours is ..

If stock w/KB 2.8 and LT headers, I get around 40 kPa. Using OE MAP and reading with HPT. Idle 650. MAP line taken from intake rear and used for bypass valve, KB BAP, OE MAP sensor, and Innovate 3-bar MAP(boost). Read ECM MAP.
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