haveaNOSday said:
to Garen do you mind me asking how much compression ratio you are going to be running for next season. I asked the a/m guys bruno,and the other guy from T.O they didn't seem to want to give it out I'm guessing there running between 15-17:1 ratio.
Yeah most guys seem to think there's a big secret with compression, and there's a ton of HP to be gained by increasing compression through the roof LOL.
Gotta admit though, Big CR numbers sound impressive to people.
They may work on paper, theory, and Dyno programs. But when it comes down to actual conditions, it doesn't usually work out that way.
All I can say is it has to work in with the combo you plan to run.
As for our CR, don't mind at all. We started the season with 13.7 -> 13.75 : 1, and made 156 lb/ft TQ. Second time around we built 13.0 : 1 and actually made 6 more HP, and 161 lb/ft TQ
The fuel mixture was not even perfected yet (10.5 AF)
If you find this hard to believe, I can one day show you the Dyno sheets.
Oh yeah, the 13:1 engine had mufflers on.
The 13.7 engine had open EX, and actually lost 12 hp with the mufflers on. Go figure.
So for our combo we're sticking to 13 flat + or - .1
I hope more guys get their cars out next summer it's already looking good *tu*
Just curious, are you building a A/M car??