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Post by magoconnor on Dec 5, 2017 0:04:00 GMT -5
Hello.
I'm having trouple with my rear pulley after I installed the naraku twist control ( spring holder/ball bearing).
First I installed it with a 1500rpm spring, with no luck. Could not get pass 30 Kmh.
After that, I tried a 1000rpm spring with the same results. Execpt this time, I would average around 45 Kmh, before it started to hesitate.
I don't think the rear pulley i able to open fully to allow sufficient belt travel.
I need help finding a solution. Maybe one could be cutting down the spring?
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Post by scooterted on Dec 5, 2017 0:13:47 GMT -5
You are correct that the rear pulley is not opening enough. No, dont cut it. If you increase spring strength without increasing roller/slider weight, you will get a higher engine rpm and a lower vehicle speed.
Tune your variator, or put your stock spring in.
Edit: Even if you put the stock spring back you may still have to tune your variator because the spring will have more preload with that thicker no twist ball bearing base.
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Post by magoconnor on Dec 5, 2017 19:10:26 GMT -5
hello.
The things is, even when the spring is fully compressed, I still don't think there is clearance.
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Post by oldgeek on Dec 5, 2017 19:24:57 GMT -5
You are likely using a long spring with your Twist Controller. It has been observed in some cases that the pulley is not able to open fully when using a long spring with the TC. I have had to change to a short contra spring when using the TC to get full travel of the pulley. Is is also advisable to use a light contra spring unless you have a powerful motor. In most cases a stock or light spring is enough for most applications. A heavier spring usually leads to more heat in the CVT, which is not wanted.
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Post by magoconnor on Dec 6, 2017 18:11:25 GMT -5
Ok then.
Do you know where, you can purchase the "small type spring" in europe? Or maybe a brand that makes them?
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Post by magoconnor on Dec 15, 2017 22:48:25 GMT -5
Anyone? Could really use some help.
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Post by lostforawhile on Dec 16, 2017 3:41:03 GMT -5
on this same subject, when changing contra springs, is there a formula as to how many grams to increase for each type of spring, I know I need to go up at least one gram with the blue spring
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Post by 90GTVert on Dec 16, 2017 7:16:21 GMT -5
on this same subject, when changing contra springs, is there a formula as to how many grams to increase for each type of spring, I know I need to go up at least one gram with the blue spring I just take some wild guess at it and then it's easier to guess based on how far off RPM is to me. Springs aren't all equal anyway, as far as pressures from one 1000RPM to the next for example. |
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Post by 90GTVert on Dec 16, 2017 7:19:00 GMT -5
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