I like the 2G head, it seems to make good power. The 2G intake manifold and 2G throttle body suck though. I wouldn't run it in a performance application without doing a 1g TB and sheetmetal intake though. The 1G heads will "flow" more, but that doesn't mean they will make more power. A smaller port can often do a better job getting more air into the cylinder, due to velocity than a big port that flows a lot on a flow bench.
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Originally Posted by Andrew7dg
I want to go to E85 for the 108 octane so I won't be dealing with knock but still a little confused on what I need to do to the car to make it compatible.
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You will still have to deal with knock.
There was a test done on a turbo Honda with 10.0:1 compression versus 9.0:1 compression on the same car. At 10.0:1 it made a little more HP at the same boost level, but they could obviously run a lot more boost with the 9.0:1 pistons. Turbo spoolup time wasn't really affected at all.
You are going to need some big injectors and possibly 2 fuel pumps, if you plan on making a decent amount of power on E85.