Does timing have an effect on emissions??
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From: Michigan
Does timing have an effect on emissions??
I am going in for emissions tomorrow and I know it's going to be close. I was wondering if the timing would have any effect on the outcome. If so, what should I set it to? Any other tricks for emissions? Thanks.
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Joined: Jan 2001
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
I'm pretty sure it does. And if you think you'll be close, I would set it back to factory specs if it isn't just for the test.
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Joined: Mar 2002
Posts: 1,805
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From: Central CA
Car: 89 Black GTA
Engine: 5.7 TPI
Transmission: 700R4
I was told that the temp of the engine will have an effect on emissions, and the timing can have an effect on the temp. I know that this isnt quite the answer you were looking for but this is all I have to offer.
Brian
Brian
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From: Michigan
Legal Limit for Hydrocarbons: 1.136
Reading: 1.131
Legal Limit for Carbon Monoxide: 11.136
Reading: 4.464
I can't believe I passed, considering I have an aftermarket cam, no EGR, no charcoal canister, no AIR tube crap, and a cat that is literally coming apart inside. I set the timing back to 6 degrees BTDC by the way. Thanks.
Reading: 1.131
Legal Limit for Carbon Monoxide: 11.136
Reading: 4.464
I can't believe I passed, considering I have an aftermarket cam, no EGR, no charcoal canister, no AIR tube crap, and a cat that is literally coming apart inside. I set the timing back to 6 degrees BTDC by the way. Thanks.
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