Who makes the best rev box?
Who makes the best rev box?
Research Assistant
Engine Research Center
University of Wisconsin-Madison
Department of Mechanical Engineering
2003 400ex
2005 Arctic Cat F7 EFI
i would say big gun cuz it gives u 1 hp some how.
gives u 1hp??
02' Silver 440ex
Full P&P, Edelbrock Doug Eichner 440 carb, Motoworks SR4, Hotcams, Wiseco 11:1, Hotrods...
big gun claimes ther rev box gives a 400ex 1 more horse power but on a 400ex their useless cuz a 400ex stops making power in the 8000 rpm's so that extra 1000rpm is useless at less some one cant shift right.
yeah ive heard dont use rev boxes bc sometimes they r hard to start
1999 440EX #137
Pro Armor Killswitch
IMS 440 Graphics
High Velocity Porting
Black Powdercoated Stock Rims Flipped on back
AC bumper
K&N Airfilter
White Bros.E-Series Exhaust
Full Skid Plates
+2 Lonestar Swing Arm
Pep Remote Rezzie Shocks
Steering Dampener
Fatty Bars
No Airbox Lid
Stock LT-Z 250
No airbox lid
"My Thumb Can Press The Magic Button"
I Want A YFZ!!!!!!!
$-Kevin-$
Rev boxes are useful in the bigger bores according to people who know stuff(not me)
with an aggressive cam, they are useful. i would get the gt thunder one. if price isn't a concern, look in to msd.
2005 450r
*sold* 2001 400ex
"If you think you can, you can. If you think you can't, your right."
"A leader will take you where you want to go. A great leader will not necessarily take you where you want to go but where you ought to be."
"If you want to do something, you will find a way; if you don't, you'll find and excuse!"
"Its not aptitude but attitude that determines your altitude."
i wouldnt doubt it if all of them came from the same company
the white brothers and big gun do come from the same company, HONDA. its a stock xr250 box, which is a kickstart. something about that is why you get the starting troubles when put on a electric start 400ex. curtis sparks and gthunder make there own and neither have any starting issues. i suggest the gthunder. i beleive he even has a few different boxes (different power curves) so you can choose what fits your needsOriginally posted by 2muchquad
i wouldnt doubt it if all of them came from the same company
and yes, the 400ex stops making power well before the rev limit, so unless you have a cam and porting that is set up to rev REALLY high, a rev box is useless unless it alters the power curve before max rpm or moves max power past the stock limit
Planning a comeback...
I do realize that i won't have s*** for power up top but all I want is a couple mph for lake running. It would still wind out good right?
Research Assistant
Engine Research Center
University of Wisconsin-Madison
Department of Mechanical Engineering
2003 400ex
2005 Arctic Cat F7 EFI