CAN-AM (BRP) Discussions about CAN-AM ATVs.

Rev Limiter removed..

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Old Jun 4, 2001 | 05:08 PM
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300exSTER's Avatar
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Hey I'm about to buy a rev limiter remover from somone. I liked the Idea of the 8500rmp limit by team-pami but they are out of stock and all they have left is the COMPLETLY removed limiter. I'm ready to order but i'd like to know what happens when you dont have a rev limiter and you hit between gears or hit nutral or something! How high could you rev the mighty 650 before floating the valves? I belive the stock limit is 7700rpm. I love the idea of an advanced ignition curve by team Pami and it sounds like there could be a pretty good boost in the power of the ds. All i know is i have a race sunday and i'm going to order a cdi by tommrow morning. In motocross i'd like to have alittle more rev comming through the corners on the track. I dont like the idea of shifting in the apex of the corner because of pounding the rev limiter. I think an extra 1000rpm would do the trick but i dont want to blow the thing up. I'd appreicate any help anyone might have. If anyone has the Team Pami Cdi box please inform me of the power increases and rev increase. Thanks alot

ryan
00 ds
Graydon Nerf Bars
Renthal Bars
PeP steering stabalizer
Razr 20x11x9s
Douglas .190 rims
K&N air filter
Custom Built Endcap (what a power differnce!)
Oury grips

Will have soon enough:
?? CDI ??
Alba Piston
Alba Cams

District 23

 
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Old Jun 4, 2001 | 08:23 PM
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I just don't think you could have asked that question any better. Anybody got the answer? My drag strip jet runs hit the rev limiter hard, but a big 75 mile ride yesterday didn't hit it once. I was trying not to hit it, but I sure didn't baby it either. It would sure suck floating a set of valves due to a missed shift or other screw-up. An 8500 limit seems ideal for a stock top end.
 
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Old Jun 4, 2001 | 10:10 PM
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Yeah somone try to help 2 guys out. ha [img]i/expressions/face-icon-small-happy.gif[/img]

ryan
 
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Old Jun 5, 2001 | 12:20 AM
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My first mod was a Woods cdi and a K&N filter(air box lid on),I revved the hell out of it for six months before I did any other mods,And yes I have slipped my share gears dohhh!!!I also never noticed or heard the valves float.When I took the motor apart too install a Woods stage 2 kit,everything in the motor looked fine.I am not saying you cant do any harm to the motor!this is just my personal experience,but i do feel if you plan to run for a long time with out a rev limiter,the HD valve springs wood be a good safeguard
One other thing,with just those two mods and with out a pipe I only noticed a very slight performance gain,but is was nice not hitting the rev limiter.
Wish I could get a good comparison between the Woods cdi and Team-Pami cdi?
Jeff
 
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Old Jun 5, 2001 | 12:27 AM
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The Ron Woods cdi must not run a differnt ignition curve. The Team Pami runs a differnt ignition Curve and i'v heard you can get some 4 hp out of it. Where as you'd get about 3 from a pipe. I have a Filter and Endcap, the endcap made such a huge differnce in the performance of this thing. Went from about a 1/2 inch exaust opening to a 2 1/2 exaust opening. So its probably the equivalent of having a BIG gun or some other exaust like that. I need that extra rev for the corners in this race comming on sunday. I hope team pami sends to wisconsin in under 3 days! haha

ryan
 
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Old Jun 5, 2001 | 12:32 AM
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Whoops i didnt think my first one got through, man this new forum is hard..haha
ryan
 
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Old Jun 5, 2001 | 12:52 PM
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Just a personal experience here I'll share about the rev box. I've got a '00 DS and my buddy has a '01 DS. We each have the same exact mods except he's got a RW rev box. The only other difference is he weighs in at about 180 pounds and I tip the scales at 310. We dragged for about a half hour and even switched bikes and the results were always the same. I would always lose by one to two lengths depending on how well either of us started. That right there was enough for me NOT to get a box. It may start making a difference with the more mods that are put on the bike but the gains are still going to be minimal and your putting extra stress on the engine. Sure, if you absolutely have to have an extra .2 seconds off your et then go ahead. But for $300 bucks, put it into a carb or something else. I know for me, my cash will be better spent someplace else, maybe a gym membership LOL [img]i/expressions/face-icon-small-happy.gif[/img].
 
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Old Jun 5, 2001 | 01:52 PM
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Quicksand,
like we were talking about before, the RW ignition does not run a differnt ignition curve (at least from what i'v seen). The Team Pami runs a differnt ignition curve for around 4-5 more horsepower on mid and top range. No retard either, so it will rev as far as you deam possible, and keep making power. At least that is what i gathered. I'm sure a stock ds w/ just a rw rev limiter would not gain much at all, but they serve the purpose to helping other mods like a filter/pipe and use the extra rev. I'v read that the pami limiter gives a noticable amount of power increase and was reffered to as a "must in performance of the ds".
ryan
 
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Old Jun 5, 2001 | 08:56 PM
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300exSTER,
Let me stear you to the horse's mouth on the RW rev box:

Date Posted: Apr/20/2001 8:18 PM
Posted By: eli54
Rank: Trailblazer
We carry an ignition amplifier box that comes straight from Rotax, for racing. It has more advance on the bottom, does not retard the ignition above 6500 and has no rev limiter. The stocck DS, even with pipe and filter, loses power above 8,000, and the stock springs are good for 8500 rpm. With our dual valve springs, the motor is safe to above 8500. '85 Wood-Rotax 600 130+ mph

You can view the thread here.

The Pami box and RW box are basicly the same thing. They both change the curve. That's why I was saying for me any box just didn't seem to be worth it. Aside from gaining another 1000 RPM you're just putting extra strain on the bike. Don't get me wrong here though. I know that in conjunction with other products and mods a box is going to start to shine. But if you don't have other mods yet then do those first. If you do buy a box, don't expect any noticable change except for the fact that you don't hit a limit.
 
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