Timing in regards to Air/Fuel ratio

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Sep 19, 2003 | 09:33 AM

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Timing in regards to Air/Fuel ratio

I was told bumping up timing via distributor will cause the car to run more rich.
Is this true? If so can someone explain why? I'm trying to understand.
Thanks!

Sep 20, 2003 | 01:00 AM

TimoneX

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From: Wayland, MI, US

Re: Timing in regards to Air/Fuel ratio (tc)

I fail to see how advancing the timing will cause the computer to dump more fuel.

Sep 20, 2003 | 05:03 AM

StyleTEG

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From: assville, MI, USA

Re: Timing in regards to Air/Fuel ratio (TimoneX)

The only way I could see it even remotely doing that, is if the more advanced timing cause less of the fuel to burn completely.

Sep 20, 2003 | 08:25 PM

TimoneX

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Re: Timing in regards to Air/Fuel ratio (StyleTEG)

That should theoretically cause the computer to lean the mixture all else being equal.

Sep 21, 2003 | 06:54 PM

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Re: Timing in regards to Air/Fuel ratio (TimoneX)

Makes since. A local "tuner" shop told me that, and I didn't understand why. And they couldn't explain it...

Sep 22, 2003 | 06:10 AM

Muckman

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From: Buffalo, NY

Re: Timing in regards to Air/Fuel ratio (tc)

Ive been told by multiple tuners ignition timing does affect AFR. I dont understand it either, would someone care to educate us ignorants?

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