Honda Hunter

With a static CR of 12.23:1, DCR at 9.01:1 could a turbo or supercharger be done as long as the boost is kept low on the street, alot of timing pulled and a good tune or would it just be a ticking time bomb no matter what even with forged internals?

markinkc69z

No, the bomb wouldn't tick, it would knock.

Honda Hunter

Couldnt be addressed by pulling alot of timing with less than 8lbs?

BitterOldMan

with a dynamic ratio at 9:1, you are pushing the limit of pump gas even normally aspirated. I don't see any amount of band-aiding with timing or reducing boost to 8 PSIG that will let the engine live with pump gas.

master of a-bodies

no, unless you run straight methonal as a fuel

LameRandomName

Can you get E85 in your area and are you willing to install a new fuel system?

Honda Hunter

New fuel system as in getting a fuel cell etc?

LameRandomName

Yeah. Everything from cell to injectors, plus a computer to run the injectors. Unless you use mechanical injection, which you probably don't want to do.

You can run high compression with alcohol, partially because of the octane and partially because it runs so cold.
(If I recall correctly, the change of state from liquid to vapor sucks up a LOT of heat. If I am not remembering correctly, hopefully someone will speak up.)

Alcohol is normally a PITA to run on the street, but the 15% gasoline content of E85 makes it a lot easier.