cam ?

[kraemer]

I am looking for more power from my bike, but it doesn't smoke at all, I am not tearing down a perfectly good engine. I am considering putting in a cam, but didn't know which one to run. I ride at the mines at treverton mostly. so i want the bike to be built for hills. I am running no lid with k+n WB R4 pipe, 158 main with 140 pilot and 6+ timing 15/38 gears i climb in 2nd wide open

I was wondering should i run a hot cam stage 1 or 2 for the long climbs? I also noticed people are running crf 450 timing chains in there 400's now is this the beefiest or is the xr 400 still desireable?

thanks alot

[2muchquad]

stage one cam and the cr450f timing chain.They can be had for about $30 if you look around;)

[honda8&3]

I agree and also look into a high compression piston with the cam and chain. prolly one of the most popular combos around IMO:cool:

[drew416ex]

I would also say stage 1 hot cam unless you went up in compression then I would say stage 2.

[kraemer]

I am already paying 3.75 a gallon for 93 and you guys want me to run 100? imo 9:1 is plenty to reep the benefits of a cam... not to mention i'm not replacing the piston on a bike that doesn't smoke...once I smoke i will put in a 416 kit but compression will remain stock...but thanks for the input

any one else have oppinion?

[drew416ex]

Who said anything about 100 octane gas. 93 is more than enough for what you are doing.

[400sEXridr]

when you decide its time to bump compression i would step it up to 11:1. much more power than 9:1 and can still run on pump gas

[mitchamus]

10.5.1 JE piston stock bore with stage 1 cam. I think thats the combo and the way to go. if money is not an option throw an FCR on there.

[TRXRacer1]

Stage 1 is highly under rated and IMO perfect for what you're doing. The stg 2 would perform just fine with your current compression if that's what you want. I've got a 10:1 416 with a stg1 with stock timing chain. I wouldn't bother changing your chain if it's still good but if you feel the need go with the CRF.