e85 afr wot

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Jul 29, 2011 | 08:39 PM

408lq4

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e85 afr wot

i have a aem e85 Gauge Range 5.7:1-11.9:1 air/fuel ratio. what should it read at wot to make the most power and what should idle read.

Jul 29, 2011 | 10:42 PM

Chalky

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Quote:

Originally Posted by 408lq4

i have a aem e85 Gauge Range 5.7:1-11.9:1 air/fuel ratio. what should it read at wot to make the most power and what should idle read.

If fuel is really E85, stoich needs to be 9.76 This varies a little depending on article.

Using AFR, figure 8.47 for max lean power, max rich: 6.97.

This equates to 12.5:1 AFR for max rich and 13.2:1 for max lean.

Last edited by Chalky; Jul 30, 2011 at 10:52 PM.

Jul 30, 2011 | 12:08 PM

408lq4

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whats the difference in stoich and lambda? i am new to tuning. i was just going to go by the wide band

Jul 30, 2011 | 02:33 PM

Chalky

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A little difficult to explain. How about telling what changes you made to tune so far to work with e85

Anything done to stoich setting, or PE?

Last edited by Chalky; Jul 30, 2011 at 09:09 PM.

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