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crfspode54
08-08-2006, 08:13 PM
Hey -newbie here -
I am new to quads, but experienced with dirtbikes. I bought a used 450r about a year ago to ride with my wife. She has a 400ex, and my crf was a bit high strung for the type of riding we do as a couple. well now i want more power out of my quad. Man, i would love to duplicate my crf, but i don't want to put that kind of money into a quad i ride 10 times a year.

I was thinking of doing the athena 488 kit, or just go to a 12.5:1 piston. I also have the stock crf cam out of my 04, and that bike is long gone, and was wondering if that would work with either mod.
What is the compression ratio on the athena kit? That is what i am leaning towards, and would that cam help it further?
Obviously i would change my intake, exhaust, and jetting etc.
Maybe one of you guys have ran this combo.

crfspode54
08-08-2006, 08:20 PM
I read the athena kit is 10.7:1 !?!?

Would i get the same gains from just going to a 12.5:1 and my crf cam? torque is not really what i am after, but it's nice, looking mostly for all around hp and rideability. I know the stock comp. in the 04 is 10.5:1, ...right?

DEVINF450R
08-08-2006, 10:23 PM
right. look at my mototr mods in my info and no 06 can touch me out of the holeshot, not much of anything for that matter...