50 cc 72 cc gy 6

[keewayboi]

If i put 72 cc on a kymco agility and have a restricted cdi will it go faster than 50 cc

[scooter7878]

Ur probably not going to get much more top speed if any but u will probably get to top speed faster and definitely hold more speed going up hill. Ur rev limit is going to stop u from going any faster whatever max rpm is is going to be the same with or without a bbk 7500 rpm cvt fully open is going to be the same kitted or not u just gonna have more torque

[90GTVert]

As long as it's strictly engine RPM limited (not speed limited), you may be able to go a little faster. The BBK may let you install heavier weights to get a little better CVT ratio on the top end while still accelerating OK. It would likely be a minimal gain and limit removal would be required to see the full benefit of the BBK.

This also assumes that the CDI is a real restriction. Some CDIs are limited to 10,000RPM, which has no effect on many builds that don't want to rev that high anyway aside from being a possibly useful safety feature to avoid extreme over rev.

[keewayboi]

Thanks for the help i am lookin for more torque and acceleration but not more speed

[scooter7878]

Oct 14, 2021 14:13:11 GMT -5 keewayboi said:

Thanks for the help i am lookin for more torque and acceleration but not more speed

get a 1000 rpm contra spring and the 3 small clutch springs that will increase torque a good bit and help a lot with hills. U may have to adjust roller weight weather u get the springs or not there's a lot of variables but if u don't get the springs I'd probably start with 5 g rollers if u get springs I'd probably start with 5.5 or 6 g rollers u may have to adjust from there but I'd say that's a good starting point. U might be better off buying the springs and a few different weight rollers if u get 4 ,5,and 7 g rollers u can mix 3 of one weight and 3 of another just make sure you stagger them every other one to keep it balanced. In other words 4 g rollers would total at 24 g 5 g rollers would total at 30 u could mix 3 4g and 3 5g and be in between for total of 27 to fine tune the cvt. *****and be sure to go up a few sizes in the main jet most ppl leave the idle alone but I go up one size on the idle jet up jetting is very important if u run it lean u can blow something up

[steve1297]

There are a couple Variator/drive face combos where the RPM drop at speeds of 35mph+. At least with the belt I use(Bando 723-17.5-28). For instance, the NYC Golden Pulley Variator, the RPM drop so much above 35mph that you think something is wrong at first. If you try that Variator, with 8g rollers, I bet you can hit 40mph.