Question regarding sliders By dukeofyork (Read 946 times)

[dukeofyork]

I decided I would go ahead and replace my rollers with sliders and now I need to determine the correct weights.

So, I have the so called "fake" VOG with Linhai engine, 14g rollers, and 856 belt. I am little heavier than I'd like to be (290lb) and the scooter is about 380-400lb.
I need to know, considering the info above what sliders to get so I can get quicker take off and climbing but not loose way too much top end. Should I go 14g sliders and being with sliders itself it will do just what I need it to do even though they are same weights (due to the sliders design) or should I go with 12g sliders for quick take-off and get longer belt (871) which in theory will compensate for the loss of top end.

Also what is best place to buy the sliders (money and time for delivery wise) and belt if needed

Thanks all

Dukeofyork

[Smorkle]

When I replaced my original rollers with sliders I went with 12g and it helped out on the low end take off quite a bit. I have noticed that my scooter works very hard at the upper end. I was thinking about moving back to 14g since I did an engine modification last fall to see if that helped me out any.

[zugzug]

When you change the weights your changing the rpm range you want the variator to shift at. If the weights are to heavy your shifting at a lower rpm and is probably out of the power band. If the weights are too light then its not shifting until your at too high of an rpm and may not be heavy enough to fully gear up. If you have a VOG type of scoot you have a tach right? What rpm range is it shifting up at now? Most specs I can find on that engine says that the max torque is around 5500 rpm so I would target the shift range somewhere between 5500-6000rpm. That will have you accellerating in the max torque range. Then when your vari gets to top gearing the motor will wind out and give you the max HP as you approach your max speed.
-Zug

[dukeofyork]

Thank you Smorkle and zugzug

Now I have few more questions

My rollers look worn on one side and I have only 2000 miles on them, is that normal?
The variator was extremely packed with grease so I cleaned it out and greased it with just a tiny bit of graphite/teflon grease, did I do right?
On the inner pulley there are two oil seals on each side which kinda restrict the otherwise free sliding over the collar. If I get rid of the oil seals and completely clean the grease on the inside of the collar where the shaft slides in, and on the inside the pulley where the collar sliders in, is it going to be ok?
On the one of the sponsor's website I see the sliders but I do not see the four sliders for the cam. Can I use my stock cam sliders, and if yes can I use them without grease?
Where I can get the 13 gram sliders?
Thanks,
Dukeofyork

[dukeofyork]

Good Lord, I ordered some sliders from Absolutely Scooters & Supply last week and took until today to ship, unbelievable!

[KidNme]

Along with sliders, your main spring (Behind your clutch) is in charge of when you scoot changes gears (Speeds in this case). Going with a stiffer main spring will allow your scoot to get to high and back down again quicker. We typically go with a 1500 main.
You can also change out your arm springs on the clutch to delay engagement. Neither of these to things will effect your top end, only how quickly you get there.

Slider weights act 1 to 1-1/2 grams lighter than a roller without loosing the top end as much.
If you are running 14grams now, switching to a 14 slider won't be real noticeable. We have had some luck with alternating weights like jrryan mentioned.

[dukeofyork]

May 13, 2010 18:06:16 GMT -6 KidNme said:

Along with sliders, your main spring (Behind your clutch) is in charge of when you scoot changes gears (Speeds in this case). Going with a stiffer main spring will allow your scoot to get to high and back down again quicker. We typically go with a 1500 main.
You can also change out your arm springs on the clutch to delay engagement. Neither of these to things will effect your top end, only how quickly you get there.

Slider weights act 1 to 1-1/2 grams lighter than a roller without loosing the top end as much.
If you are running 14grams now, switching to a 14 slider won't be real noticeable. We have had some luck with alternating weights like jrryan mentioned.

I did order 12g sliders and will see how it goes with them if I ever get them. I was thinking of machining down the boss 0.5-1mm, do you thing it will help for the top end or simply to go with a longer belt?

DukeofYork

[Alleyoop]

I had a boss cut down 1/16 of an inch and it did raise the belt more. Now too long of a belt you may loose top end simply because the belt on your cluth pulley will not go to the very bottom where you get the speed from. So you have to find a belt that will reach the top and at the same time have enough pressure to pull the Clutch Plates apart so that the belt will get to the bottom. As they say Bigger is Not Always Better
Alleyoop

[KidNme]

May 13, 2010 18:14:57 GMT -6 dukeofyork said:

I did order 12g sliders and will see how it goes with them if I ever get them. I was thinking of machining down the boss 0.5-1mm, do you thing it will help for the top end or simply to go with a longer belt?

DukeofYork

That is a good idea. In buggies, we actually go a little longer on the boss for the low end torque. I imagine going shorter will allow the 2 halves to get closer which should improve top speed some at the loss of a little bottom end. The lighter rollers should correct that.

I would think you would need a slightly longer belt to accommodate the larger diameter you'd be running at on the variator but maybe not. You're not going that much bigger.
To save some bucks, I would try it first and if it doesn't improve top end, find a larger belt.