according to sparksracing.com there aftermarket pipe for a yzf450 will add over 10hp, this is funniest thing i have ever heard show me they dyno and ill believe it...i mean come on 45 to 55 spending only a couple hundred dollars?

 

On what magic dyno does a YFZ make 45 RWHP stock? KENZ tested a Yoshi equipped YFZ a couple of weeks ago and it only made 38 RWHP. Even if that bike wasn't in perfect tune, it's very doubtful that it would make an additional 17 RWHP.

 

lol

yfz = 33hp stock...maybe 35 depending on altitude

rappy's have 35-37

not really sure about banshee's

 

lol

you are definitely not getting for than 45 hp out of a properly piped and jetted yfz without going in to the motor

no replacement for displacement!

 

33 or 35?? Ha I know for a fact the bike puts out like 49 and the YFZ puts out like 38-40 without blinking a eye...

 

You're off by ten. The bike puts out 39 to the rear wheel. Since the ATV has more frictional losses, expect somewhere around 34-36 at the rear wheels.

 

Was this the DYNO that King Raptor lost like 20 some hp?

 

Thanks 4 the backup Ridley [img]i/expressions/face-icon-small-happy.gif[/img]

 

on a dyno set up right but not a moble dyno there always to low. one were you have light weight dyno slicks and srt right the 450 make 41 42 put one a pipe jet kit cam mode and air box lid and you'll get 49 50 thats were with a gytr pipe slip on. a raptor makes 38 39 stock, full system and the stuff to set it up will get 43 to 50 hp. thats on a good dyno one that cost alot of money and set up in a shop. ido know for a fact it took alot of money to make my raptor to bet my 450. but thats only on the drag strip every were else the 450 kills my raptor

 

KENZ is having another Dyno Day on October 4th. Any YFZ owners want to end these Raptor versus YFZ dyno numbers debate's?