Boost & E85

[66Coronet440]

I've got a 1966 Coronet 500 (if you couldn't tell from my user name)... I just sold my Camaro, so it's time to get serious about the old project. I was thinking about running a procharger, or some type of centrifugal supercharger... I have heard that you can run a higher compression ratio with E85 and still supercharge it... Does anyone have any insight into this? Pros/Cons of E85 with boost? Or maybe someone is running a similar set up?  Just trying to do my homework before I spend any $$$.  Thanks. 

[bordin34]

E85 allows you to run more boost because it has a high octane, i think around 100. E85 is corrosive to rubber, like the fuel lines in our cars. From your username I would guess you have a Coronet 440 not a 500 with a 440".

[MN-B-body]

Well I haven't ever posted on this forum before, but I surf it almost everyday. Lots of info, but I rarely have anything worthy to contribute.
Anywho... I have been wondering about this myself. Being that I reside in MN, I have plenty of access to E85. Almost anywhere in the Minneapolis area will have a pump or two. Getting rid of the rubber seems to be the easy part. Carb adjustments may be a little more complicated... On second thought, couldn't a carb/fuel pump used for alcohol work just fine?

[66Coronet440]

E85 allows you to run more boost because it has a high octane, i think around 100. E85 is corrosive to rubber, like the fuel lines in our cars. From your username I would guess you have a Coronet 440 not a 500 with a 440".

I can see that...

[Blown70]

Yes, you can run more boost with the alcohol as opposed to regular fuel or gasoline.  You can run a higher static compression too if you want or just run more boost to get to the FCR that you are looking for with your boost.

It depends on the application driving/racing/ expected life or maintainace of the motor.

Tom