Join Date: Apr 2004
Location: Western Indiana
I run E85 on several cars from a 12.5:1 sbf to a 15:1 BBF and a TT 5.4. BUT a 93 octane gas with ethanol mix is just that. Its a fuel that just makes 93 octane after the addition of the alcohol, not a 93 premium fuel + alcohol. So its not true premium gasoline. An additional problem with these added blended fuels (and I do run these pump fuels myself on drivers) is that they aren't consistent on blend and therefore not consistent on AFR's either. If your getting near the limits, then this can make you lean and burn a ring or lift a head.
I'm not suggesting a mixed fuel is junk. It's just hard to know what you have with a mixed blend and sadly in areas of the country that is just about all there is at a pump station.
YES alcohol and E85 is loved......LOVED.......by boosted engines. 10.5:1 boosted is full steam ahead and "game on" with E85 if available. Just don't let it gel up over winter.
69 351 TKO Sport Roof, Ride Tech coilover
70 557 PG Mach I tube chassis 2650lb
70 427 TKO Sport Roof, SoT full chassis to be
70 351 FMX Mach I
67 347 TKO Coupe SoT/CAT5
67 289 C4 Coupe stockish cruiser
69 460 TKO Vert, Mustang Plus Grab a Track
94 351 TKO AIX, Maximum Motorsports
01 5.4 4L80E Twins and CrMo caged
11 5.0 Magnum XL single turbo Griggs