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Re: EGT & E85
Post taken from another user on DSMlink:
"Well, here is what we know about E85:
1. Because it dramatically cools the intake, the final combustion temp is at least 100* if not 200* cooler than gasoline with all other conditions being equal.
2. Combustion temps rise when timing is retarded and fall when timing is advanced. A properly tuned E85 setup will have significantly advanced timing (over gasoline) thus reducing the combustion temps even more.
It is hard to believe that anyone is really seeing 1700+* on E85 unless they are running their timing too low, their WB is inaccurate, or their EGT gauge is innacurate. Many people (myself included) have accidentally screwed up the global setting with E85 and went full throttle with a/f ratios north of stoichiometric without causing any damage. It is VERY hard to believe that someone could be producing 1700* EGTs at only 11.5:1. If that were the case, then we would have melted our pistons.
We've all heard of guys melting parts on gasoline - anyone ever seen that happen with E85? "
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