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gear ratio?
by: carasdad - May 10, 2013 21:31:12 GMT -5
Post by carasdad on May 10, 2013 21:31:12 GMT -5
that would be a 44 count sir. on the big one that is, my gears dont ressemble the ones in your pic. they are identicle however to the ones i posted. the gears im changing are the middle set the small one that is pressed in to the bigger one. do you kinda get it. Ah ok..tx..now I know which engine style you have  ..as there are different versions of Minarelli's. You will make us a vid of your maiden voyage once you finish it up...right? Also takeoff speed...top speed..you know all those things we scooter nuts like to see and discuss. ;D |
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gear ratio?
by: andrewrides1 - May 10, 2013 22:27:02 GMT -5
Post by andrewrides1 on May 10, 2013 22:27:02 GMT -5
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Post by bwader on May 10, 2013 23:24:17 GMT -5
thanks all. but while you were all giving great advice i was cracking the gear box. as carasdad said i have to know or i might of been doing myself a disservice. i didn't know about the tire. it turned out to be a straight 4:1 13/52 so since im puting in a bbk im going with a 14/32 which will be about the right upgear. thanks. Ok lets put this into perspective, my 150cc stock has 13/40 final gears. And you are going to 14/32! I'm going to 15/37 Rule I've heard is go about 2 teeth up and 2 teeth down when up gearing. Unless you have more cc's to pull the gears without having too sluggish of acceleration. I don't know about 14/32 that sounds a bit too steep even if you had 150cc's I hope that works out for ya. |
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gear ratio?
by: alleyoop - May 10, 2013 23:55:24 GMT -5
Post by alleyoop on May 10, 2013 23:55:24 GMT -5
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gear ratio?
by: andrewrides1 - May 11, 2013 0:24:04 GMT -5
Post by andrewrides1 on May 11, 2013 0:24:04 GMT -5
keep the math in mind if you read throughout the post we've established that this will be about a 32 percent up gear and a 40 percent power increase so they should pull just fine. unless you know something i dont.
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Post by alleyoop on May 11, 2013 0:33:23 GMT -5
Yep, if you do not have the power to pull the taller gears you will be pulling them out.  I agree going from 13/52 to 14/32 is quite a jump , maybe go 3 up and 3 down that would not be so bad and the gain would be anywhere from 8-10 REAL mph gain. Alleyoop |
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gear ratio?
by: andrewrides1 - May 11, 2013 0:45:32 GMT -5
Post by andrewrides1 on May 11, 2013 0:45:32 GMT -5
Yep, if you do not have the power to pull the taller gears you will be pulling them out. I agree going from 13/52 to 14/32 is quite a jump , maybe go 3 up and 3 down that would not be so bad and the gain would be anywhere from 8-10 REAL mph gain. Alleyoop NO it is 13/44 to 14/32 doesnt sound too bad when you take about ten off that number. Right. lol. |
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Post by alleyoop on May 11, 2013 0:59:42 GMT -5
thanks all. but while you were all giving great advice i was cracking the gear box. as carasdad said i have to know or i might of been doing myself a disservice. i didn't know about the tire. it turned out to be a straight 4:1 13/52 so since im puting in a bbk im going with a 14/32 which will be about the right upgear. thanks. Not what you said before ;D But either way going 10 down is still to much you will be pushing that thing to get it going and you will need really high rpms to turn the Variator fast enough. But you do what you want just trying to let you know ahead of time it will be a dog starting off and getting up to speed. Alleyoop Don't want to see you doing one of these numbers  |
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gear ratio?
by: biguns420 - May 11, 2013 8:36:34 GMT -5
Post by biguns420 on May 11, 2013 8:36:34 GMT -5
where would you get bigger gears from? out of which kinds of motors? which, gears match up?  this looks different cover than a shortcase, is it? is that all that is different between the short and long case gears? are the gears the same, the shaft and everythign? becasue if you changed gears, you would be able, to trade, with a short case? set of gears? as long as you kept your final drive cover, or what.. ? hehe. cause if the bigger ones fit, on any gears that match, maybe bigger 4 stroke versions of triton or whatever bikes the 10.3:1 ratio gears come out of, could be swapped. |
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gear ratio?
by: andrewrides1 - May 11, 2013 8:41:02 GMT -5
Post by andrewrides1 on May 11, 2013 8:41:02 GMT -5
where would you get bigger gears from? out of which kinds of motors? which, gears match up? find out what kind of engine you have then go to scrappydawgscooters.com and search performance under your model. they will have gears there. figure out your gear ratio and how much you want to change it. its actually pretty complex and takes some studying. |
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gear ratio?
by: andrewrides1 - May 11, 2013 8:43:42 GMT -5
Post by andrewrides1 on May 11, 2013 8:43:42 GMT -5
thanks all. but while you were all giving great advice i was cracking the gear box. as carasdad said i have to know or i might of been doing myself a disservice. i didn't know about the tire. it turned out to be a straight 4:1 13/52 so since im puting in a bbk im going with a 14/32 which will be about the right upgear. thanks. Not what you said before ;D But either way going 10 down is still to much you will be pushing that thing to get it going and you will need really high rpms to turn the Variator fast enough. But you do what you want just trying to let you know ahead of time it will be a dog starting off and getting up to speed. Alleyoop Don't want to see you doing one of these numbers I'm still confused because Mo at scrappy just told me they would be fine. I gave him all the numbers. so I'm baffled. |
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Post by carasdad on May 11, 2013 8:47:12 GMT -5
DX 2 up and 2 down can typically yield up to 15% depending on whether you swap primaries or secondaries. 32% gearing..with a 40% increase from the BBK looks good on paper...well PC NotePad and PC Calculator..these days nobody owns paper anymore. But you have to as alleyoop said you will need higher rpms. Then you have friction(inevitable on earth except in a vacuum) i.e. gear friction..tires rolling resistance. Then Mother Nature tosses in wind drag..which is not calculated in a linear fashion. 32% is really steep. Yes I know the folks on the phone told you to get the set you are getting. But is best to do your own math and instill your own knowledge than to take advice from a person that takes phone orders. That is what made Ron Popeil so wealthy with his company..'Ronco' It is his sales pitch. Also false statements that he invented the product. Ok he is an inventor..BUT..the items he sells are not his. Inventors in China sell them to him...that is why they are so cheap and... "BUT WAIT...if you call right now I will send you a second set ABSOLUTELY FREE" He can afford to..Chinese stuff is low cost.  Anyway that 32% is steep..so let us know. alleyoop...did the math..the set you are installing is as you know...very plausible...so also let us know how it comes out.. Glenn |
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Post by carasdad on May 11, 2013 8:57:15 GMT -5
Not what you said before ;D But either way going 10 down is still to much you will be pushing that thing to get it going and you will need really high rpms to turn the Variator fast enough. But you do what you want just trying to let you know ahead of time it will be a dog starting off and getting up to speed. Alleyoop Don't want to see you doing one of these numbers I'm still confused because Mo at scrappy just told me they would be fine. I gave him all the numbers. so I'm baffled. Surprised MO would suggest that. I talk to him lots...a gold mine of info..so it may work great for ya..  btw you are getting your package from me today... ..woo hoo... 9114901075742419497741 Priority Mail® Out for Delivery May 11, 2013, 8:12 am MOORESVILLE, IN 46158 Expected Delivery By: May 11, 2013 USPS Tracking / Delivery Confirmation™ |
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gear ratio?
by: andrewrides1 - May 11, 2013 9:06:11 GMT -5
Post by andrewrides1 on May 11, 2013 9:06:11 GMT -5
I'm still confused because Mo at scrappy just told me they would be fine. I gave him all the numbers. so I'm baffled. Surprised MO would suggest that. I talk to him lots...a gold mine of info..so it may work great for ya.. btw you are getting your package from me today...  ..woo hoo... 9114901075742419497741 Priority Mail® Out for Delivery May 11, 2013, 8:12 am MOORESVILLE, IN 46158 Expected Delivery By: May 11, 2013 USPS Tracking / Delivery Confirmation™ Ya I'll keep my fingers crossed. hope it all turns out well. if not i can get the 13/33 set which would put me at about 10.1:1 which is more in line with what you guys are saying. thnx a lot scootdawgs. |
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gear ratio?
by: biguns420 - May 11, 2013 12:32:12 GMT -5
Post by biguns420 on May 11, 2013 12:32:12 GMT -5
do shortcase, longcase gears swap. thats why i asked all about motors and stuff. and im looking here.
theres different kinds of these motors. just wondering which ones swap put. i read on there, scrapp... hat qj might not fit.
what about all the different, qma qmb all that do yu guys know nothing? what copies are these copies of thats what im asking if you dontknow. then why buy ?
and heres an idea.
if ratio, like means, clutch spins to spin back tire. so 10:1 is 10 clutch spins. if the gears, are teh same, people usually run a pretty big motor going 75mph on 8.4:1 gearing ratio. on a honda elite.
u can go down to 7:1 but it gets pretty crazy. low down speed is slower takoff
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..BAD TO THE BONE..