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Post by onewheeldrive on Jun 4, 2014 17:30:16 GMT -5
I've got a 72cc with stock airbox and a 78 main jet--- would it be worth trying the 50/16 gears or is that something you guys think is better off for the 80+cc kits? I don't weigh a lot, so if it takes off a bit slower I don't mind. I'm not sure what to expect top speed wise though, maybe gain 5mph?
On a side note-- wasn't there a really nice chart/graph somewhere that showed approx results from the minimal upgrades all the way to the "max" upgrades, and what to expect? I wish I bookmarked that.
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Post by millsc on Jun 4, 2014 23:40:54 GMT -5
I don't see why not run 16/50 with a 80cc kit probably will gain a few mph. I've tried different gears on 50's and 150's never noticed any take off loss.
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Post by onewheeldrive on Jun 5, 2014 17:39:54 GMT -5
I want to try it, hoping to gain something something worth while. It may very well be my next experiment.
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Post by PCBGY6 on Jun 6, 2014 0:22:45 GMT -5
Oh you'll like the 50/16 gears. It's was a great add for my scoot
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Post by onewheeldrive on Jun 6, 2014 2:34:24 GMT -5
I've got 2 sets of extra gears for the final drive tranny leftover from old engines, so that'll make it easier since I won't have to repeatedly press on/off gears---if for some reason I decide to switch back. I think I'll order them this weekend. Something new and different for once.
My main concerns to begin with are how well it holds up with acceleration and on hills. I've never tinkered with these ratios before. Seems like a double-edged sword, but 50/16 doesn't seem to be as drastic of a change as others.
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Post by onewheeldrive on Jun 14, 2014 0:36:19 GMT -5
Ordered the 50/16 gear set finally. Really looking forward to seeing how they perform over the stock gears.
Right now I have approx 8.5g rollers (new engine stock rollers) in the variator. I have some 7.7g laying around in decent condition. Not sure what to expect in that area, I guess I'll find out when I see how my scoot reacts to the new gears.
Just thought I'd give an update.
I've been averaging in the lower 40's for top speed, my max the other day was about 45mph, according to the GPS(which seems close anyway), and I assume that was downhill. I don't weigh a lot. Of course, the rpm's were roaring, which is why I intend on installing a tach.
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Post by PCBGY6 on Jun 14, 2014 17:17:56 GMT -5
Let us know what you think after installing them.
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Post by onewheeldrive on Jun 15, 2014 2:38:32 GMT -5
Let us know what you think after installing them. I most certainly will. |
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Post by onewheeldrive on Jun 17, 2014 22:54:43 GMT -5
I'll be getting the gears tomorrow- they just left Indianapolis at 9:28pm.
So tomorrow, when the mail comes or after I roll out of bed, I'll be heading to the machine shop in town. They're calling for scattered showers/storms so hopefully there are no delays. No big deal, rain like that is always better than a wall of rain for 2 hours straight, or longer.
Ready to get this done. So hopefully the rollers I have will do the job. I have a gut feeling I"m going to need to drop down a gram or so. I wish I knew because I'm thinking of putting another order in tonight, but I may just wait until tomorrow--- but the weekend is coming up so that sucks with the mail situation.
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Post by onewheeldrive on Jun 18, 2014 13:16:16 GMT -5
Well, they sent me 49/17, so it looks like I'll be making a trip to the post office instead!
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Post by onewheeldrive on Jun 18, 2014 15:12:29 GMT -5
The 17 looks bigger than my 16.
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Post by onewheeldrive on Jun 18, 2014 18:34:51 GMT -5
Actually both gears are different sizes.
Anyway, I hit 49.2 mph with them-- with the 7.7g rollers. Gonna try the 8.5 when I get home.
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Post by alleyoop on Jun 18, 2014 19:57:04 GMT -5
The 17 looks bigger than my 16. Its supposed to be bigger, REMEMBER the BIGGER(MORE GEARS) on the Counter Shaft gears and smaller Final Drive gear will turn the FINAL DRIVE gear more times. Your Clutch Shaft turns the Counter Shaft Gear which turns the Final Drive Gear which turns the wheel. Alleyoop  |
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Post by onewheeldrive on Jun 18, 2014 21:35:41 GMT -5
That makes sense.
I had better top speed with the 7.7g rollers, I got to almost 46mph with the 8.5g (with headwind and tailwind), but both rollers are obviously running at top speeds with lower RPM's.
I think I'll try 7g for sure, maybe get 6.5g, too.
Here's the deal though. A parts site has no business sending out 49/17 gears when it clearly says, and ONLY says, 50/16. There was no accident--- they "just don't carry the 50/16 anymore", because "China blah blah blah". When something like this happens-- change your website information! Real simple! You contact a customer when something of this nature happens before sending it out. For example (and example only--didn't happen to me), if someone orders 6.5g rollers and you don't have them--- you don't ship out 6g or 7g without the customers approval. (I just have a hard time trusting what I'm getting--- which is why I always weigh rollers when I receive them)
Now I'll always have these gears now and that's by choice-- I could have sent them back. I still want to try the 50/16 in the near future.
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Post by alleyoop on Jun 18, 2014 21:44:29 GMT -5
Well the 17/49 are taller than the 16/50 by 1 tooth on each so little more mph if you scoot can pull them.
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Main Jet
..BAD TO THE BONE..