m104.980 piston and comp ratio help please! - PeachParts Mercedes-Benz Forum

RBYCC · #11 02-04-2014, 08:05 AM

Quote:

Originally Posted by carat 3.6 amg

Hi Ed,

The rods are about as short as they can go without hitting the crank, they are 143mm h-beam type ment for a honda.

400hp is what I would like to see out of this project, if that can be achieved with 10.1 cr I'd be happy.

I've got an emerald standalone ecu for the engine management, with a ford edis6 coil pack setup to give a decent spark.

If you've done a compression and leak down test to assure that all cylinders are within spec and cleared up any vacuum leaks then your engine should handle .5 bar @ 10:1 CR. A proper fuel/ignition control should get you close to the 400BHP you're trying to attain without worrying about your engine coming apart.
The critical component in any engine is the AFR under boost.

Ed A.