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Post by spaz12 on Sept 13, 2015 14:13:42 GMT -5
That cylinder will rev to 13k?
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Post by iwiketuddlz on Sept 13, 2015 14:29:37 GMT -5
Mmm?? I wonder what my peak rpm is.?? I can't find a diagram or a dyno...
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Post by sai on Sept 13, 2015 14:30:31 GMT -5
That cylinder will rev to 13k? I don't know. I just checked the max rpm on the vapor is 13280rpm with 53.8mph. But it never stay between 11-13000 consistently, I can see it jump up and down 500-1000rpm in a flash even though I hold the throttle on the same spot. |
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Post by spaz12 on Sept 13, 2015 15:02:06 GMT -5
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Post by spaz12 on Sept 13, 2015 16:12:02 GMT -5
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Post by Lucass2T on Sept 13, 2015 16:59:58 GMT -5
That cylinder will rev to 13k? I don't know. I just checked the max rpm on the vapor is 13280rpm with 53.8mph. But it never stay between 11-13000 consistently, I can see it jump up and down 500-1000rpm in a flash even though I hold the throttle on the same spot. 13K+ is crazy. Let's say the vapor reads the right rpm, then you're overrevving like a mofo! But i doubt you'll do 53 @ 13K rpm...even on the smallest gears. It would be more like 60-65 i think. Can you make a vid @ topspeed where engine sound is clearly audible? Or assure us your vapor is reading right? |
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Post by sai on Sept 13, 2015 19:43:29 GMT -5
 looks like when I ride it can go up to 11.000rpm and this is 3/4 throttle it'll hit around 50mph today I went down even more to a 7gr and the response in all range seems to be best compared to 8 or 9gr |
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Post by sai on Sept 13, 2015 21:55:14 GMT -5
I don't know. I just checked the max rpm on the vapor is 13280rpm with 53.8mph. But it never stay between 11-13000 consistently, I can see it jump up and down 500-1000rpm in a flash even though I hold the throttle on the same spot. 13K+ is crazy. Let's say the vapor reads the right rpm, then you're overrevving like a mofo! But i doubt you'll do 53 @ 13K rpm...even on the smallest gears. It would be more like 60-65 i think. Can you make a vid @ topspeed where engine sound is clearly audible? Or assure us your vapor is reading right? Is it possible to do the recording with an iPhone? What is generally the top speed for say 10.000-11.000rpm? It it feels that I can't go faster than 50mph due to the 15/46 primary gear that's really low |
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Post by spaz12 on Sept 13, 2015 21:56:56 GMT -5
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Post by sai on Sept 14, 2015 0:43:07 GMT -5
Am I supposed to get around 60mph at 10.000-11.000rpm?
Because I'm stuck at 50mph. Some times even at 3/4 throttle it's around 48mph already.
I can feel the powerband starting at 8500-10.000rpm
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Post by Lucass2T on Sept 14, 2015 4:52:59 GMT -5
Am I supposed to get around 60mph at 10.000-11.000rpm? Because I'm stuck at 50mph. Some times even at 3/4 throttle it's around 48mph already. I can feel the powerband starting at 8500-10.000rpm Its possible to calculatie it. See how many turns the clutch Bell turns when you turn the back wheel 1 revolution. Then measure the circumfence of the back Tire and with Those nummers you can calculate the approx speed at a given rpm. But 50mph @ 11k seems plausible. But 50@13k seems a bit off to me. My scoot does 70@11500 with really tall 7:1 gears. At 13k it would be somewhere around 80 to give you an idea. |
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Post by sai on Sept 14, 2015 10:02:45 GMT -5
Am I supposed to get around 60mph at 10.000-11.000rpm? Because I'm stuck at 50mph. Some times even at 3/4 throttle it's around 48mph already. I can feel the powerband starting at 8500-10.000rpm Its possible to calculatie it. See how many turns the clutch Bell turns when you turn the back wheel 1 revolution. Then measure the circumfence of the back Tire and with Those nummers you can calculate the approx speed at a given rpm. But 50mph @ 11k seems plausible. But 50@13k seems a bit off to me. My scoot does 70@11500 with really tall 7:1 gears. At 13k it would be somewhere around 80 to give you an idea. It takes 14 3/4turns for the clutch for the whole wheel to turn 1x my back tire size is: 120/80-14 |
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Post by Lucass2T on Sept 14, 2015 10:15:08 GMT -5
oh wait....im wrong.
The cvt itself has a certain ratio itself too, but we don't know that.
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Post by sai on Sept 14, 2015 10:19:17 GMT -5
oh wait....im wrong. The cvt itself has a certain ratio itself too, but we don't know that. Any other way to figure out the max speed? I don't want to keep opening the CVT case because I already stripped 2 bolts that have the helicoil in them. |
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Post by Lucass2T on Sept 14, 2015 11:14:52 GMT -5
Didn't read your previous post that carefully but you say it takes 14 3/4 turn of the bell to turn the wheel 1 time? Thats a 14.75:1 ratio.
If that's right you're having some crazy small gears! Not strange your top speed is low! So with the information we've got right now i'd suggest looking for some taller gears. I think somewhere around 10:1 would be a lot better! So that the bell turns 10 times to let the wheel turn once.
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