From what I understand, the Japanese kinda have a cult following for the 4 stroke sedan class, It's not the fastest but it is becoming very popular.

Yes, testing engines is alot of fun, but sorry I can't say what were testing

I agree that 4 stroke engines have a huge advantage in the fuel consumption dept.

I will get ahold of a .26 surpass 4stroke engine and test it against a .12 sport engine, and post my findings.

Should be interesting to see exactly what the differences will be.

BK
http://www.nitrodynesystems.com