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Intake Air Temperature affect on Ignition Timing

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Intake Air Temperature affect on Ignition Timing Intake Air Temperature affect on Ignition Timing
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Old 09-04-2012, 09:08 PM   #1 (permalink)
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that would be a good question for Uprev
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Old 09-05-2012, 04:10 PM   #2 (permalink)
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that would be a good question for Uprev
I called UpRev and Omar was very helpful (especially considering I wasn't buying anything). He didn't answer my question about IAT/timing, but said that oil temp and coolant temp are bigger factors. According to Omar, the ECU starts backing off on timing when oil temp is above 230 and/or coolant temp is above 190. Thanks Omar/UpRev and cdoxp800.

I'm still wondering where IAT comes in. If anyone can point me in the right direction, I'll be beholding.
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Old 09-06-2012, 02:55 PM   #3 (permalink)
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the ECU starts backing off on timing when coolant temp is above 190.
this definitely explains alot !
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Old 09-06-2012, 03:26 PM   #4 (permalink)
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Originally Posted by SouthArk370Z View Post
I called UpRev and Omar was very helpful (especially considering I wasn't buying anything). He didn't answer my question about IAT/timing, but said that oil temp and coolant temp are bigger factors. According to Omar, the ECU starts backing off on timing when oil temp is above 230 and/or coolant temp is above 190. Thanks Omar/UpRev and cdoxp800.

I'm still wondering where IAT comes in. If anyone can point me in the right direction, I'll be beholding.
That sounds about right.
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