EC 300 cylinder pressure

[hannesd]

Originally Posted by kendunn

Even if the fuel mixture is getting pre-compressed in the crank, why does the motor not predetonate at those pressures? I thought anything over 11:1 would need race gas, and at the pressures of 190 or whatever I don't know how it would run on anything other than diesel without predetonation.

i would say that the PCR isn't that high because otherwise it would allso blow out the seals,right?
the actual compression is built up once mixture is on top of the piston.