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Tial Bov spring

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Old Aug 25, 2011, 09:00 PM
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Tial Bov spring

Just a quick question... My car sits around 16-18 in/hg vacuum right now and I was planning on swapping over to a fp red, ets 3.5 fmic kit, and a tail bov. Will the vacuum still read the same as the motor will remain the same. I feel this is a stupid question.
Old Aug 25, 2011, 09:02 PM
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The spring you choose really depends on the cams you will be using.

What cams will you be running?

EDIT-
FWIW, I am using GSC S3's and using the -10 PSI spring. Seems most people use that spring.


-Bink

Last edited by binky; Aug 25, 2011 at 09:06 PM.
Old Aug 25, 2011, 09:14 PM
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weird, i run the S2's and run the 11psi spring. my gauge sits at 20in/hg vac. the spring depends on the vac reading you are getting. i doubt your vacuum will change much/ if any at all.
Old Aug 25, 2011, 09:42 PM
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sounde the hkss good I have the hks 272s and the 10 psi spring was what looked about right.
Old Aug 26, 2011, 07:55 AM
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10 psi spring worked well for my setup, stock block, S2 cams, BBK-B turbo, MAP V3 intake mani...11psi was too stiff & 8 psi too soft...
Old Aug 26, 2011, 08:26 AM
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run the -10 with a dedicated 1/4" ID line
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