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Old 03-18-2009, 02:17 PM   #1
NITROS
Scooby Specialist
 
Member#: 41561
Join Date: Aug 2003
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
04 GT3076 2.1
Stroker = Broken 3rd

Default Idle timing/ low load ignition timing adjustment after cam install?

I have installed bc 272 cams. I am curious how idle timing should be modified to run most or close to efficient burn. Decreasing Lop, misfires, etc.

I have tried to search but could not find any specific info on this topic from a tuning POV.

Great minds educate us.
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Old 03-18-2009, 02:29 PM   #2
jays05
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Member#: 78165
Join Date: Dec 2004
Chapter/Region: South East
Location: SC
Vehicle:
05 STI 35r + e85

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I fudged the coolant temp timing compensation map to add 3 degrees of timing at idle with my cosworth 278/274 cams. Seems to have helped.
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Old 03-18-2009, 02:32 PM   #3
NITROS
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Join Date: Aug 2003
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
04 GT3076 2.1
Stroker = Broken 3rd

Default

Quote:
Originally Posted by jays05 View Post
I fudged the coolant temp timing compensation map to add 3 degrees of timing at idle with my cosworth 278/274 cams. Seems to have helped.
O nice, I didn't even think of modifying that map.
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