Hello,

I recently came accross a discussion on the forums here about a "soft burn", lean burn concept. Really interesting. And it got me wondering what the maximum compression ratio or more specifically maximum pressure a standard A series can run before mechanical failures. For argument sake lets assume that fuel/ design will allow us to avoid detonation. I have searched but couldn't find anything specifically discussing this. It might be an interesting project to build a "soft burn" lean burn A series running a compression ratio of say 16:1.

I understand that the articles I read were written about race engines and had the intake specially designed for intense swirl. I'll be interested to hear what can be done.