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Switching to E85, couple of questions.

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Old 04-22-2010, 12:01 PM
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Default Switching to E85, couple of questions.

Making the move to E85. I think the things I need to change are:

Injector flow (moving to 60lbs from 36's, was seeing 93% idc)

VE table by 30% (I'm in speed density 24/7. I do not use narrow bands. STFT and LTFT are both disabled)

PE multiplier from 1.143 to 1.225 (my starting point)
Gas stoich being 14.7 / 12.86 = 1.143
E85 stoich being 9.765 / 7.72 = 1.265 (rich e85 6.975 / lean side 8.4687.. 7.72 being middle of the road)

Anything I am missing?
Old 04-25-2010, 10:39 PM
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Originally Posted by LIL SS
Making the move to E85. I think the things I need to change are:

Injector flow (moving to 60lbs from 36's, was seeing 93% idc)

VE table by 30% (I'm in speed density 24/7. I do not use narrow bands. STFT and LTFT are both disabled)

PE multiplier from 1.143 to 1.225 (my starting point)
Gas stoich being 14.7 / 12.86 = 1.143
E85 stoich being 9.765 / 7.72 = 1.265 (rich e85 6.975 / lean side 8.4687.. 7.72 being middle of the road)

Anything I am missing?

I am not sure if I would change any of the values in the VE table. The VE table is airflow, so changing to E85 should not affect the VE. I would change the commanded AFR table to reflect the desired AFR.
Old 05-01-2010, 10:52 AM
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U might wanna search my buddy "gtorep" on here, he has a nitrous high compression goat that he runs e85 on and has done speed density and maf tune on, he will prolly have some helpful hints to help u out!




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