White Brothers R-4

[slosh13]

Hey guys i wanted to know how the White Brothers R-4 ( full system) performs with heaviliy modified 400ex motor? I am runnin one next year and im looking forward to seeing it performs.

[UglyMotha™]

my machine runs like a raped ape :o

[cals400ex]

yeah, but ugly also has a rare breed r-4. :D

i imagine the r4 will do just fine on your motor.

[400exrider555]

yea the r-4 works fine on it, my friend has one on his 400 and he likes it alot, i got a e-series, that works fine to

[cals400ex]

on the dyno's that i have seen the e-series actually produces a little more power than the r-4 and it is even quieter. however, dyno runs don't mean everything.

[400exrider555]

but the e-series,,,i think is still a little better..and yea dyno runs dont mean everything but they mean some stuff...;)

[UglyMotha™]

just a bunch of opinions thats all you guys have got :o


i've owned both the e series and and the r-4 and since i've put the r-4 on i would never think twice bout goin back to the e-series :macho

and yes the e-series does produce a hair more peak hp butcha gotta learn to take a step back and look at the whole power curve

[400exrider555]

hey i never said that it was alot better..i didnt even say anything about it..i just said that i like the e-series better