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Does Gearing affect A/FRs?

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Old Dec 12, 2008 | 08:49 PM
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Default Does Gearing affect A/FRs?

Basically I'm trying to find if tuning in 3rd gear compared to 4th affect A/FRs? since I street/track tune an only get full 1st thru 3rd gear passes.

so how does the load difference affect AFRs, or do I have to compensate for it?
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Old Dec 14, 2008 | 11:33 AM
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bump........
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Old Dec 14, 2008 | 11:47 AM
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If you tune the airflow model to be correct, and your commanding what you want in the PE table, you should be fine.

if you rape the PE table, instead of tuning correctly, most likely it will not work correctly.

Ryan
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Old Dec 14, 2008 | 12:31 PM
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slow got it exactly right. if you dont hack things, and if you account for airflow properly, the correct fueling will just follow
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Old Dec 14, 2008 | 01:17 PM
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Originally Posted by slow
If you tune the airflow model to be correct, and your commanding what you want in the PE table, you should be fine.

if you rape the PE table, instead of tuning correctly, most likely it will not work correctly.

Ryan
airflow model as in my maf airflow?
I tweeked my maf airflow and VE tables till my Fuel trims are in check ( between -4 and 0)
now I'm doing my PE table. is that correct?
I'm new to hptuners, just learning as I go, thanks for the imput
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