Low timing at idle?
11-29-2012, 11:01 PM
#1
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Low timing at idle?
Any dangers or any other issues with running low timing such as 0-3 degrees at idle?
For the hell of it i tried it. Car idled beautifully.
For the hell of it i tried it. Car idled beautifully.
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11-29-2012, 11:16 PM
#3
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I guessed that at 2-3 degrees most of the burn happens fast enough on the way down but for some reason it idles much better. Rpms dont move at all no matter what afr its at.
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11-29-2012, 11:20 PM
#4
No safety issues. Potential problems:
1. Engine will need more air to keep going with that timing -- might outstrip the capability of you IACV.
2. You would have a steeper transition to the rest of your timing map. If you find yourself in that region, you may encounter some instability.
Other than that . . . . Note that your timing during startup should be low like this -- prevents kickback.
1. Engine will need more air to keep going with that timing -- might outstrip the capability of you IACV.
2. You would have a steeper transition to the rest of your timing map. If you find yourself in that region, you may encounter some instability.
Other than that . . . . Note that your timing during startup should be low like this -- prevents kickback.
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11-30-2012, 01:46 AM
#5
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My cranking timing is at 0. I find it better since it doesn't have a chance to kick back in the winter.
I was trying to eliminate idle droop today so for the hell of it i dropped the timing to 2 degrees and the timing was solid as ice. I did hear my muffler louder though which i dont care about that much as long as it doesnt cause problems with overheating the valves.
I was trying to eliminate idle droop today so for the hell of it i dropped the timing to 2 degrees and the timing was solid as ice. I did hear my muffler louder though which i dont care about that much as long as it doesnt cause problems with overheating the valves.
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