lastphaseofthis

iTrader: (8)

so those new billet rotors aren't E85 friendly, darn.

rotorooter93fd

iTrader: (6)

alcohol is a conductor i didnt even think of that so what happens when your tank runs low and the the alcohol conducts it? KA-BOOM!!! kind of a scary thought

JZG

A couple of weeks ago my friend tried E85 in his injected N/A 13B PP running 9.7 rotors. Back to back tests were carried out on the dyno with 98 pump gas, E10, and E85. Switching from 98 pump gas to E10 picked up 9-10rwhp with about 3% more fuel across the board. Switching from E10 to E85 resulted in no hp gain whatsoever. To make the same power as E10 32% more fuel was required and 2 more degrees of ignition timing. The only advantage was lower oil temps.

He also tried a better ignition with E85 which resulted in no extra power either, all it did was clean up the afr's a little.

poser7

Ethanol is not as acidic as one might think. Aluminum has been found to withstand e85 quite well. There are several companies that sell e85 conversion kits that I have spoken to (change2e85.com, etc.) and they have found that there really isn't any concern.

Also, the "Lake Area Technical Institute" did an interesting experiment with a non-flex fuel vehicle running e85 from 20 miles to 100,000 and then did a complete tear down of the engine and fuel system.

They then did a comparison between the test vehicle and another vehicle running gas. There were no issues with the fuel system or the engine in either case.

Interestingly, the gas powered vehicle's fuel pump assembly was very brittle and the e85 pump still looked new and the rubber parts were still soft.
See:

http://www.youtube.com/watch?v=HuOs1yap8mU

I haven't made the switch yet, but I will. My next RX-7 will e85 powered and will be able to pass emissions without any issue. Plus, I can run a power tune all the time without worry.