Ok the 250R has.
FMF Fatty Pipe & Power Core 2
Cool Head
Bored 60 over
Reed Spacer
34MM PJ Carb
K&N Air Filter

Z400
Yoshimura Slip On
K&N Air Filter
Jet Kit

The 250R won by 1 1/2 is that about Right

 

that is close. if that 250r is running right, it should have left him by more than that. mine is pretty close to stock (except pipe, boysen rad reedcage, uni filter) and it will eat a raptor.

 

 

That's a stock raptor right? Well I think the R is suppose to leave the Z pretty bad on this one since it's bored out a little and a bigger carb.

 

acually 60 over is only a few cc's. it will not make a diffrence, and the stock carb on an R is a 34mm PJ, no bigger. (same as the one listed above).

 

I though that was a bigger carb, but I guess I'm wrong. Well, I still think teh 250R will win pretty bad.

 

It'll beat it but not bad. The Z aint no speed demon but it ain't slow either and the R was never known for its speed.....

 

I take all my post back, I call this one a really close one.

 

I own both a 250r and a 400z. They both have equal perf parts and with a bad clutch in sand the 250r beat it by 5 bike lengths or so in a 100yd race. The 250r in considerable faster than the 400z. I have not raced my friends Raptor yet in the250 but he does not beat the 400z as bad as I did with the 250r.

 

I agree the Z400 is not a speed demon runs pretty good....

i own two 250r's and one z400 and if a Z400 ever beat me in a race i would just go home....
And once again there is some potenial for the Suzuki to run very well.... But , it should never beat a R.....
If it did i would have to rule that RIDER ERROR...