Anyone Seen #6-8 Cyl issues on E85?

[NGOT8R]

Shit.... I think we are going to need a thermal image scanner. These numbers are all over the place.

It would be nice if someone else can perform the same test to gather temp readings, so that we can at least compare notes to see if there is a wide variation in the numbers.

FYI, all of my readings were taken at the exhaust flanges, right off the head as shown by the red arrows in this pic.

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[sms2022]

Paging @CoryS, really interested in this as I just pulled the trigger on an e85 tune as I understand it runs cooler

 

[illtal]

Paging @CoryS, really interested in this as I just pulled the trigger on an e85 tune as I understand it runs cooler

If you know anything about the combustion of ethanol, one of the byproducts of the event it H20. Yes it will be cooler.

 

[DonnieO]

I have the MMR Head Cooling Mod on my car. I installed it while I had the tranny out, otherwise, it would have been impossible to do (properly) with the tranny in.

This may sound silly, but can anyone think of the best way to test the temperatures of cylinders 7 & 8 with a heat gun? If the testing is not too difficult to perform and can be done with a temperature gun, I’d be willing to give it a try on my car pand report back here with results with the results.

https://www.aircraftspruce.com/cata...MImqTW2KrnhAMVjBitBh1H1Qh_EAQYAiABEgJ3yPD_BwE

You might could use something like that over each spark plug.

 

[NGOT8R]

https://www.aircraftspruce.com/cata...MImqTW2KrnhAMVjBitBh1H1Qh_EAQYAiABEgJ3yPD_BwE

You might could use something like that over each spark plug.

That’s a great idea, but unfortunately, it won’t work with a COP setup.

 

[sms2022]

Bumping this thread for exposure. One of my main purposes in going to E85 was to run cooler on track days.

Anyone have anecdotal experience/measurements/ideas to measure cylinder temps to compare on E?

 

[NGOT8R]

Bumping this thread for exposure. One of my main purposes in going to E85 was to run cooler on track days.

Anyone have anecdotal experience/measurements/ideas to measure cylinder temps to compare on E?

See if you can replicate the test exactly as I did it above, to help establish what is normal for temps. Maybe a few others can do the same to also help contribute to the data.

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