Great info on compression/boost

[USAFguy22]

Found this as a great read for those choosing a compression ratio during a rebuild or wanting to know the benefits of different compressions for their boosted application. Really helpful formulas as well.

http://www.xcceleration.com/cr-boost 101.htm

 

[kookoo4nsx]

Early 911 turbo's ran 6.5-1 compression. I wonder what current alcohol funny cars run? 15-1?

I know marine 1100hp diesels run 20-1 and 60psi turbo's. WOW!

 

[USAFguy22]

It says in the article top fuel dragsters are running 5:1. And if you google I think there are cummins builds that run 90+ psi, crazy

 

[Mishimoto]

Great information! Thanks for posting.

 

[BATMANs]