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Post by ej132 on Apr 8, 2013 10:55:35 GMT -5
Hello all,
I bought my scooter used and the previous owner had put in a performance variator. The variator looks to be the same as the one that scrappydog sells, it has the fins around the outside. Now I had that in for just a bit after I bought it but then something went boom in my cvt, belt melted and left residue on the variator. So I just put the stock on back in. Well I finally got the performance one cleaned up and put back in and the difference is negligible or even hurts performance. I did some testing with the stock then the performance one and thse are the numbers I got:
Stock Variator / Perf. Variator
Top speed: 35.565 / 35.565
0-20mph: 7.5035 seconds / 7.498 seconds
First 60 feet: 4.5025 @ 10.515mph / 5.042 @ 11.075 mph
1/4 mile: 31.0235 @ 34.45 mph / 31.0195 @ 34 mph
This testing was done on the same street and the street is fairly level.
Ive seen on this forum others saying that variator added alot of speed and power but this test shows none or even that it hurt performance.
I do not know what my weights orignally weighted but I took them and weighed them and they came out to weigh approx. 5.65 grams.
Any tips or advice? Maybe different weights?
-Thanks all,
E.J.
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Post by scooterelements on Apr 8, 2013 11:16:25 GMT -5
if its performance it should be bigger than stock. usually 115mm for the 150cc scooters. you need a matching drive plate to get the belt to ride higher. also need to test out different roller weights or sliders to see which number works best for your setup
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Post by carasdad on Apr 8, 2013 11:59:05 GMT -5
Also performance variators need the proper roller or slider weights. Due to their longer(if it is over size and should be as Walt said above about diameter...performance variators tend to be larger diameter) The variator must be tuned trying different weights as not only is the travel longer....the ramps should be steeper if it is a true performance variator. The steeper ramps need the variator tuned with the proper weights cause if they can't make it up that steeper ramp...you will see no speed gain...  |
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Post by alleyoop on Apr 8, 2013 12:37:41 GMT -5
I question your timing really unless you were on a dragstrip where a beam starts and stops the clock. Just the time to move your finger to off and or on takes some time. Those numbers can be off quite a bit really.
But like everyone has mentioned you have to put the right weights in to take advantage of the bigger variator otherwise you may loose top end speed. Also you cannot have both, good low to mid-range speeds and top end. You either go one way and loose a little on the other.
You have to find a medium good mid-range and a little more top end. If you live in a block to block stop lights and or stop signs area then you want very strong low end speeds to dash from one stop to the next. On the other side of the coin if you live in an area where there are long stretch of blacktop and speed limits are higher then you naturally need top end speed rather than short bursts speeds to keep up with traffic.
If you want a lot more of both then your only choice is more power pretty simple really. Take a look at the different dragstrip cars. Each class puts out different horsepower and of course the class that has motors that put out more horsepower has the quickest 1/4 mile runs and higher top end speeds.
Alleyoop
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Post by prodigit on Apr 8, 2013 12:48:25 GMT -5
Pump up the tires, make sure the spark plug pins are correctly gapped (0.015" is better than the stock 0.025"), if you have a TaoTao ATM50, get BP Premium fuel (  oct); for some reason, the scoot LOVES this fuel! Get 10W40 oil, or 10W30 (more vibration). I put 15W40 in there, but it's hard on a cold start. My next mixture will be a 50/50 mixture of 10W30 and 15W40, causing a 12,5W35 mixture, which IMHO is going to be perfect! |
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Post by tvnacman on Apr 8, 2013 13:13:53 GMT -5
How much do you weight ?
If the old owner was a light weight and your a big boy , that is where the trouble could be . I would double check lean or rich burning and valves .
John
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Sophomore Rider
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Post by ej132 on Apr 8, 2013 13:43:31 GMT -5
To get the numbers I used a gps app that starts the clock when you start moving so it takes out the button pushing error but I mean there is still plenty of error using a cell phone gps. But my other variables are consistent.
I weigh 150. I'm assuming my weights were originally 6grams and have worn down to 5.6grams.
So if I wanted more top end I could try 7 gram weights correct? Also does a heavier torque spring in the clutch decrease top end or just take longer to get there? I'm eventually planning a bbk but that will be a bit away.
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Post by imarider on Apr 8, 2013 14:18:41 GMT -5
I just did some on my scooters clutch and variator yesterday.
Putting in a heavier torque spring (1.5k) and 7.5g sliders. I have the same variatot scrappy sales and it seems to work best with sliders vs rollers. As far as top end it has gone up 7 MPH.
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Post by ej132 on Apr 8, 2013 21:38:02 GMT -5
Hey iamarider your setup sounds like about just what I wanna eventually do, with the bbk and all. Perhaps for now I wll just try a 1k torque spring since mine doesnt have the bbk to help.
Thanks everyone for the advice. Im thinking I will try some 7gram weights and see what that does.
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..BAD TO THE BONE..
oct); for some reason, the scoot LOVES this fuel!
