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carlj75
08-21-2001, 01:53 PM
Does the WB rev limiter make a big difference. Is it worth the money?

08-21-2001, 02:00 PM
If you have a motor that pumps out extra HP yeah,,,it's not a must to have and some will say it's not worth having at all. If your just a trail rider and weekend warrior don't get it,, and on a stock bike it ain't gonna help squat....:cool:

carlj75
08-21-2001, 06:23 PM
I jetted it and it seems to hit the stock rev limiter all the time now.

08-21-2001, 06:41 PM
it will always help if you are hitting the rev limiter but i would suggest a bigger front sprocket or a smaller back sprocket because al the 400s ive ridden should have more than enough power to still pull these bigger or smaller sprockets easily

carlj75
08-21-2001, 06:48 PM
Well that would be the least expensive way to go. should I just go up or down 1 tooth or a couple?

08-21-2001, 06:53 PM
i think you should buy 2 front sprockets one that has one extra tooth and one that has 2 extra teeth and try both see which one you like . i tried a 14 tooth on my 300 before i got my pipe and didnt seem to have the power on low end that it used to but with the pipe it has more than it ever did have. but a 400 should have more than enough power for a 2 tooth larger sprocket

carlj75
08-21-2001, 06:56 PM
So its better to replace the front ?

08-21-2001, 06:59 PM
no doesnt matter but i just said that because it is probably cheaper because they are smaller than the rear ones

carlj75
08-21-2001, 07:01 PM
ok, thanks

08-21-2001, 10:47 PM
carl..if your gonna get the rev limiter get one from a new xr250..it's like 60 bucks..give 1200 more rpm..and i belive it advance timing 5 degress

carlj75
08-22-2001, 02:31 PM
Does it do exactly what the wb rev limiter does? Has anybody ever used the 250 box?

08-22-2001, 05:18 PM
the xr250 box is the same box wb is using. they just put there initials on it and charge you more money. and yes it does make a diff. on i stock bike.

rhandw69
08-22-2001, 05:31 PM
Carl,
where i noticed the most help from the rev limiter is in the hill-climbing department. I think if you do any of that than you should see a little gain.
Im out here at McChord, so where do you ride at?
Next weekend (Labor Day) we are all going down to Sand Lake Oregon. This saturday i think we are going to Capitol Forest.Interested in riding?

Rhan
416 EX
WB E series
WB Rev Kit
k&N

08-23-2001, 07:53 AM
DUDE--DON'T GO UP/DOWN 2 TEETH ON THE FRONT SPOKET!
(sorry for the yelling)

A one tooth change on the front sproket WILL make more of a difference than u might expect (with stock rear sproket and tires). Two teeth will be a HUGE difference. Also, one tooth in the front is approximately equal to 3 teeth in the rear. The reason most people change out the front is, adding or subtracting 1 tooth on the front sproket USUALLY does not mean you need to get a new chain to match....whereas changing 3+ teeth on the rear sproket, you will need a new chain or will need to add or subtract links.

Good point raptakilla14...
I was considering a rev box for my 416, as I hit the rev limit very very quickly gear after gear....by going up a tooth on the front, I shouldnt hit the limit as quickly. The rev box kinda scares me, as the 400 motor (valves/springs and such) really cant handle much more rpms than the stock cdi allows. The WB rev box allows well over an additional 1000 rpms, and I think that is too much.

my .02

carlj75
08-23-2001, 11:02 AM
ok, only 1 tooth in front. Got it. Rhand- We are leaving today for Florence for the weekend. It will be my first time in the dunes. Hopefully I wont regret not buying paddles. We also ride in Shelton, Belfair, and at the ORV park in Thurston county.

08-23-2001, 03:23 PM
I am running a stock motor with some air box and pipe mods and I could tell right away that I had to shift sooner because of the rev limiter was cutting in. I could definately use a higher cdi box on mine and I like the idea of a more aggresive timing curve. Where is the best place to pick one up? Do you use a xr 250 ar an xr 400 box? I have seen the gasket for 12$ in the white brothers catalog.:macho

kabd69667
08-23-2001, 04:20 PM
Well if you have a stock bike, i would advise against a rev. limiter. Honda put the stock limiter on there because the motor isn't supposed to rev any higher. I'm sure it would make a difference either way though. Do whatever you want

08-24-2001, 12:37 PM
I read an article in 4 wheel action and Gary Jones a motor builder for White Bros. claims his 416 motors will run all day long with a 1000 rpm higher limit. I was just thinking that an advance of the timing would be a good thing. I ride the woods and almost never run wot any way. except for getting runs for big hills!!