Whats the highest compression you can run with pump gas? I googled it and got all these domestic sights saying 10ish:1, which is what a h22 pushes stock, and isnt really that high. So I was wondering if anyone else had a different opinion on it, I know it does have to do with tuning as well, so lets just assume i have a really good tuner. 12:1? 13:1?

 

Well the BMW K-series bike runs a 13:1 on pump... 93 probably.

 

well I know a lot has to do with heat dissipation, which obviously a small possibly air cooled motor like that can disapate heat quite easily. and domestics steel heads dont dissipate well compared to our aluminum head. Also Darton MID sleeves claim to flow coolant well, but i was looking for a rough estimate.

 

Well, I'm pretty sure the Integra Type R is 11:1 compression (or very close to it)and that's definitely pump gas!