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Post by scrible88 on May 15, 2004 22:03:56 GMT -5
Okay, If I do the drive mods from battlescooter.com will I get a lower top speed? I would think so.
And by how much does it increase acceleration?
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frosty
Junior Ruckster
Take your Ruckus to the Woods!
Posts: 62
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Post by frosty on May 15, 2004 22:14:13 GMT -5
I went to 6 gram weights. Got better aceleration but lost 4-5 MPH off the top end. Now I run 3 stock weights and 3, 6 gram weights. Acel. is still better and got my top end back.
frosty
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Post by scrible88 on May 15, 2004 22:25:02 GMT -5
I went to 6 gram weights. Got better aceleration but lost 4-5 MPH off the top end. Now I run 3 stock weights and 3, 6 gram weights. Acel. is still better and got my top end back. frosty So, if we went to higher than the stock rollers and had enough power (like not electronically restricted) we could gain an even higher top speed? |
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frosty
Junior Ruckster
Take your Ruckus to the Woods!
Posts: 62
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Post by frosty on May 15, 2004 23:52:39 GMT -5
In theory yes, but somtimes the shape and clearances of the pully halfs will only allow it to close so far and no farther. This would need an experiment. Some scooters do get better speed with heavier roller weights. You can then keep your take-off RPM up with stiffer clutch springs.
frosty
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Post by abe on May 17, 2004 5:08:52 GMT -5
I have to argue about "lighter rollers reducing top speed". The roller weights only change the time from the pulley being open to closed. The lighter weights keep the pulley open longer but not forever. You may have had some other variable.
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Post by scrible88 on May 17, 2004 9:52:19 GMT -5
I have to argue about "lighter rollers reducing top speed". The roller weights only change the time from the pulley being open to closed. The lighter weights keep the pulley open longer but not forever. You may have had some other variable. so lighter/heavier rollers will not increase acceleration/lower top speed or increase top speed/lower acceleration? That's the idea I got from reading your info on Battlescooter.com Anyways, I will have to reread it. Glad to hear it doesn't decrease top speed I will have to really look into it now! |
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Post by abe on May 17, 2004 17:32:30 GMT -5
Going to the correct lighter rollers will increase acceleration. If you install heavier it will reduce it. The only way rollers can reduce top speed is if they are of a smaller dia.. The best way to learn how it all works is to operate the scooter with the cover off(watch those fingers, the belt can take 'em off  ) Then take the pulleys off and play with them until it makes sense. On the variator the only way to make it slower is if the rollers are way, way too light, too small dia or by lengthing the spacer. I guess you could install a smaller dia variator also. Lengthing the spacer or a smaller dia varitor will make the top speed slower but increase acceleration by virtue of overall ratio reduction. Does all this make sense? |
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frosty
Junior Ruckster
Take your Ruckus to the Woods!
Posts: 62
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Post by frosty on May 17, 2004 20:13:16 GMT -5
Another variable that must be considered in the equation is the spring tension in the clutch (rear pulley) the small springs determine when the clutch shoes engage the bell and the single large spring determines how much force it takes to drive the belt between the pully halfs to a small diameter and a higher gear ratio. If the weights in the variator are too light they may not force the belt out on the front pulley hard enough to pull it into the rear (clutch) pulley and get to the highest possible gear.
Frosty
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Post by abe on May 18, 2004 21:01:21 GMT -5
No doubt the front and rear pulleys work together. My description is intended to be easy to understand. You never want rollers that are so light the variator can't get the belt to ride at the top. The idea is for them to get to the top slower so you takeoff faster. Unless you have a serious problem the front and rear pulleys will run the full range, from open to closed(front) and closed to open(rear). A serious problem would be a short belt, binding, or the wrong parts(rollers, springs or whatever). I'm trying to focus on the variator, rollers and clutch springs because they are the easiest for people to understand and get parts for.
I don't know of a heavier rear pulley spring that will work on the Ruckus. Has anyone found one?
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frosty
Junior Ruckster
Take your Ruckus to the Woods!
Posts: 62
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Post by frosty on May 21, 2004 23:53:23 GMT -5
Did a touch of shortening on the variator spacer today, not much, well under 1/16 in. It worked well, gave me about 2 m.p.h. more on top end and still acelerates my 200 lbs. O.K. Stayed with 3 stock weights and 3, 6 gramers in the variator. Now if I can find 3 or 4 more little 2 m.p.h. tricks I'll be in good shape or at least have fewer SUV's trying to "draft" me on Ocean Blvd.
Anybody get any more info on hacking or changing the ECM. I would love another 1000 r.p.m.
frosty
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Post by scrible88 on May 21, 2004 23:55:56 GMT -5
Did a touch of shortening on the variator spacer today, not much, well under 1/16 in. It worked well, gave me about 2 m.p.h. more on top end and still acelerates my 200 lbs. O.K. Stayed with 3 stock weights and 3, 6 gramers in the variator. Now if I can find 3 or 4 more little 2 m.p.h. tricks I'll be in good shape or at least have fewer SUV's trying to "draft" me on Ocean Blvd. Anybody get any more info on hacking or changing the ECM. I would love another 1000 r.p.m. frosty I would also kill for an extra 1000rpm lol. Yes, someone needs to come up with an ECM hack to unrestrict the motor. |
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Post by abe on Jul 9, 2004 6:21:41 GMT -5
I'm not sure which posts I gave bad info but I did. The stock roller weights are 7.5 gram. I used a $300 gram scale to get that number. Forget what I said before. I had a "friend" weigh my roller weights and he gave me the wrong info. Someone mentioned the weight of the stock rollers and I was freaked out by what I heard. I finally got around to checking them myself and was even more freaked out. Sorry I passed bad info. Hope everyone can forgive me. I made my one mistake so now I can die happy  |
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frosty
Junior Ruckster
Take your Ruckus to the Woods!
Posts: 62
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Post by frosty on Jul 9, 2004 12:29:54 GMT -5
Abe,
For your penance say "I love my Ruckus" three times and change the oil.
frosty
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Post by abe on Jul 10, 2004 17:35:25 GMT -5
OK I'll be more careful in the future. |
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