I'm trying to figure out what hardware changes would be required to run a Turbo-Bike engine on E85. ECU wise i will be using a programmable one.

My concern is seals, fuel pumps, fuel lines etc. Any ideas?

if your bike engine hasnt been produced for that in mind id give it a miss , saying that nowadays most things are tested with alterntive fuels .

youll need to think larger with everything in specification .

http://forums.turbobricks.com/showthread.php?t=73061

Might be worth talking to these guys:
http://www.motorsportdevelopment.co.uk/news.cfm/title/Axon%20Automotive''s%20Modified%20Caterham%20Sports%20Car%20Clocks%20New%20Record %20of%20Over%20131mpg/flag/2/id/206

Or these guys:
http://cardiffracing.co.uk/index.php?News

Well the injectors will be increased to 450cc/min, because i am going the turbo route. I'll be using an uprated fuel pump too. On an R1 engine that should be plenty of fuel on hand.

What i like most is that i can probably get away with the stock compression ratio on the engine, since E85 is 105 octane. it will also help a lot with drivability at the lower RPM bands.

If this idea is a 'no go' i'll probably go down the Methyl-benzine route.

from the testing ive done for formula student you basically want to make sure the injectors are 50% bigger than you need for petrol and make sure all orings etc are nitrile rubber. bosch injection pumps seem to last ok but we only used them for 6 months so didnt fully check.

also make sure you put a large fuel tank in because it is very easy to go through the tank in 15mins or hard use, which is single figure mpg.

[Edited on 1/11/07 by cossey]