Big bore for XC?

[85ATC250R]

Now that I have my machine I am starting to race harescrambles. I'm not so sure about a big bore kit but if i get cash from my blaster its something I may consider. I will probably be in a class with other modded 400ex's and slightly modded 450rs. I just want to have fun I really dont need to win, if I wanted to win I would have waited for the r450. But what bigbore would you recommend for harescramble racing (if any)? Please give links and/or prices if you can.

Thanks!! :D

[xNOILABOYx]

where will u be racing,what part of pgh are u in? I went w/ the 416 and love it,once u put a cam in it really wakes up the 400

[prepracing]

would definitly go for the 416 bore with 11:1 comp. a good cam and some porting on the head along with a pipe and you will have a very quick 400ex. Also just leaving standard bore and bumping up to a 11:1 comp piston and a pipe and cam is a good upgrade for harescrambles/woods riding that doesn't cost quite as much

[85ATC250R]

Originally posted by xNOILABOYx
where will u be racing,what part of pgh are u in? I went w/ the 416 and love it,once u put a cam in it really wakes up the 400

Im not exactly in Pittsburgh im in the North Hills area in McKnight. Im going to race up in slippery rock.

Yeah I was thinking about a 416 kit, but I have time. Thanks!

[Rico]

A good torquey motor is what you want. Build it for low to midrange power and reliable...:cool:

[ZSK]

Invest in some good shocks before the big bore kit.

SR Dunes is 10 minutes from my house.. PM me when u wanna ride :cool:

[crazyatvn]

suspension way more important!!!

[400exbiggun]

Originally posted by 85ATC250R
Im not exactly in Pittsburgh im in the North Hills area in McKnight. Im going to race up in slippery rock.

Yeah I was thinking about a 416 kit, but I have time. Thanks!
if you want a torque motor, buy my tc racing 76mm bottom end. Its a +40cc stroker. Using the stock cyl setup it will be a 440, on a 425 bore its a 465, torque MONSTER.
PM me if interested.

[Bill Fuller]

As for motor mods the 416 set up is definatley the way to go:muscle: But personally I would spend my money on suspension.