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Old 04-01-2009, 06:37 PM   #1
attitude
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Member#: 52043
Join Date: Jan 2004
Chapter/Region: MAIC
Location: Huntington WV
Vehicle:
04 sti

Default i have misplaced my manual, ej257 bucket clearance

I am very pissed at myself for not being able to find my cd that this manual is on, and need to know the clearance for the cam/bucket on the intake and exhaust.
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Old 04-02-2009, 12:34 AM   #2
benw
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Join Date: Dec 2005
Location: Oklahoma City
Vehicle:
2005 wingless
aspen white

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intake
.0079" plus or minus .0008"

exhaust
.0138" plus or minus .0008"

taken from my 2005 STI FSM
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Old 04-02-2009, 08:34 AM   #3
attitude
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thanks, but i have a bit more info that may effect the answer. i am using kelford non avcs cams 280/276. does that make it different? i have the kelford cam paperwork here, i will post what it says in a minute...
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Old 04-02-2009, 08:46 AM   #4
kevinh211
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Join Date: Mar 2004
Chapter/Region: Tri-State
Location: Long Island NY
Vehicle:
2004 STi HTA Green
28psi, MSPT Tuned

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kelford has thier own valve clearance specs, its right on thier web site.
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Old 04-02-2009, 09:36 AM   #5
attitude
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it says valve clearance .20mm intake, and .25mm exhaust. I should follow that then correct? if so i feel like an asshat

or is that piston to valve clearance? almost couldn't be because of different piston heights
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Old 04-02-2009, 12:38 PM   #6
DSM_Outback
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Location: Western Colorado
Vehicle:
93 Swapped L
Green

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.008" intake and .010" exhaust.
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Old 04-02-2009, 03:26 PM   #7
benw
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aspen white

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Quote:
Originally Posted by DSM_Outback View Post
.008" intake and .010" exhaust.
this is what I used on my BC cam and valvetrain setup. IIRC it is also what Cosworth recommends.
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Old 04-02-2009, 03:28 PM   #8
attitude
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thanks a lot guys
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