e-85 EGT's
Mar 26, 2009, 09:57 PM
#3
I'm very curious as well.
In my never ending search of E85 results. I have seen some info on other forums of 100-200 degrees lower EGTs. There was no actual before and after logs however. So hard to say what else had changed: was the gas tune rich and the E85 tune lean, was the timing aggressive on one but timid on the other, what part does boost play, etc?
Id like to see back to back data, before and after an E85 tune, 11:1 AFR on gas and 12:1 AFR on E85 - I'd call that equivalent, with max timing on both, and at the same boost level. That would seem like a fair comparison of EGTs to me.
I would expect the EGTs on E85 to be 150 degrees less, perhaps even more if the gas was 91 octane.
What does anyone else think?
In my never ending search of E85 results. I have seen some info on other forums of 100-200 degrees lower EGTs. There was no actual before and after logs however. So hard to say what else had changed: was the gas tune rich and the E85 tune lean, was the timing aggressive on one but timid on the other, what part does boost play, etc?
Id like to see back to back data, before and after an E85 tune, 11:1 AFR on gas and 12:1 AFR on E85 - I'd call that equivalent, with max timing on both, and at the same boost level. That would seem like a fair comparison of EGTs to me.
I would expect the EGTs on E85 to be 150 degrees less, perhaps even more if the gas was 91 octane.
What does anyone else think?
Last edited by Jim in Tucson; Mar 26, 2009 at 11:37 PM.
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Mar 28, 2009, 07:27 AM
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w.o.t. 1300*F
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Defi D-Gauge EGT
Last edited by KenMasters; Mar 30, 2009 at 05:38 PM. Reason: my results
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