Yeah, good points and I’m definitely aware of most of the shortcomings. I did consider the potential injector failure issues and I just replaced all of my injectors at 62K miles. The plan would be to run Techron every few tanks and also switch back to “normal” gas in the winter months when there wouldn’t be as much benefit to running E85.
The A4 Allroad pump is literally the exact same pump, same flow rates and everything. Remember this is just the low pressure fuel pump. The only difference are the seals.
Loba makes higher flow HPFP’s which may or may not be needed. Maybe running an E40 mix would be best. Dunno. The S4 guys are fine on E40 but run out of fuel at lower ratios (higher ethanol content). Need to get with Kurt and start looking at fuel trims with the introduction of E85 in small amounts and see where it goes.
The increased octane and lower EGT’s would be a big help in the summer when it’s not uncommon to see temps well above 100 degrees for a month on end. Plus I have an E85 station right around the corner from my house tempting me.
A local Mustang runs E85 now and he gained about 30 wheel hp using it, naturally aspirated. Nothing but bolt on performance enhancers. He’s running 11.2’s in cold temps, drag radials and no cats. I recently ran against him in mild temps and he ran a 11.6 where I ran a 12.3. No cats, headers and E85, I would imagine, would really close that gap.
I did not consider the oil contamination issue. I’m already changing the oil every 5K miles but if I do go forward with this, I’ll plan on testing the oil.
This thread was originally posted over on the “other” forum, haven’t moved all the info to this one yet.