|
|
Post by shakerdriver on Nov 30, 2010 16:44:56 GMT -5
ok, thanks
|
|
|
|
Post by stepthrutuner on Nov 30, 2010 21:02:18 GMT -5
I love this innovative cvt tuning and it is yielding real positive results. :thumb: Since I rebuilt my pipe to give better mid range I think I should try heavier rollers or maybe sliders.
|
|
|
|
Post by 90GTVert on Nov 30, 2010 21:28:35 GMT -5
Give it a shot. Definitely try sliders out if you never have. I tried 'em and then never looked back.
|
|
|
|
Post by 190mech on Nov 30, 2010 21:28:46 GMT -5
Love to see a man who can mod with his brains instead of his credit card!!  |
|
|
|
Post by stepthrutuner on Nov 30, 2010 22:42:25 GMT -5
Now we need to invent rollers or sliders that weight can be added to or removed from. :idea:
|
|
|
|
Post by 2strokd on Dec 1, 2010 4:16:05 GMT -5
Very nice :thumb: ! I knew you were on to something! Good work man!
Yep, that belt looks like a 15mm unit for sure! I have a couple of em worn like that. Im sure a new one will get you 60MPH, but be different on the low. :scoot2:
|
|
|
|
Post by 2strokd on Dec 1, 2010 4:27:17 GMT -5
I gotta try this w/my Hoca when i get a chance! Thanks!!!
|
|
|
|
Post by 90GTVert on Dec 1, 2010 6:15:02 GMT -5
That is a good idea Reg. Stage 6 or Malossi (I forget which now) makes something kinda like that. They have roller outer and inner parts that are different weights and you can combine them different ways to get different total weights. It's beyond my abilities, but I wonder if you could take a lightish roller and thread the inside. Then you could make screw in weights. Eh, that's probably a bad idea. To have enough material to support threads it would probably be heavy. I guess if you had the right plastic compound it could be done so the metal section would screw in. I dunno. The ones they already have are probably a better idea. Just the first thing that came to my head.
I'm wondering if I cna support the even wider belt and still be OK. I might actaully need to file the center a little bit to make it clear easier instead of 2mm more of spacers. Then I'd be back to passing the guides and breaking them again I think. I'm fine with 15mm and 58MPH... but this belt ain't gonna last forever.
|
|
|
|
Post by Fox on Dec 1, 2010 13:42:20 GMT -5
I think a clutch with a preload adjusting nut for the torque spring on it like a shock would be cool.
|
|
|
|
Post by stepthrutuner on Dec 1, 2010 16:02:48 GMT -5
The simplest and easiest way to make adjustable rollers or sliders would be to make the inner metal core of a soft metal like brass. This would necessitate the tuner to have a nice set of precision drill bits and adjustment would be from heavy to lighter only and would be permanent. An ideal system would be adjustable both ways.
Because of the centrifugal forces involved a system using spring clips or detent balls probably wouldn't be a good idea. Threaded inserts is not a bad idea but the inserts would still need to be locked in place somehow. Anyone else have any ideas?
That's a good idea about the adjustable preload contrast spring too, Fox. It should accomplish much of the same effect as adjustable rollers to a certain extent.
|
|
|
|
Post by 90GTVert on Dec 1, 2010 17:06:11 GMT -5
I like the idea for the contra spring. I think the negative of more pricey adjustable rollers would be the outer material wearing and flat spotting. Then it's just expensive junk. Would be cheaper in the long run to just buy a tuning set for $30 and then get a good set of rollers in the weight you need. I think someone needs to make a tuning set of sliders for $30. lol That'll happen.
|
|
|
|
Post by stepthrutuner on Dec 1, 2010 22:59:17 GMT -5
You have a point and I thought of that too. My rollers have close to 9000 miles on them and the last time I looked (probably at around 7000) they looked ok. Think lighter rollers wear slower? I guess they were probably better quality rollers than Chinese ones?
|
|
|
|
Post by 90GTVert on Dec 2, 2010 6:50:42 GMT -5
I think it might be quality. I put a lot of miles on the stock rollers in a couple of scoots, but the aftermarkets I used would flat spot fairly easily. I think DrPulley rollers may work out better. Their sliders are made of a material that holds up well at least. Definitely better than the knockoff sliders anyway.
|
|
|
|
Post by 90GTVert on Dec 25, 2010 17:28:44 GMT -5
When I was out last night, I was going 56MPH for about 5-6 miles. After that, it seemed like the clutch was engaged jsut barely above idle. I could still ride just fine, just the first second was sluggish and then it tried to do a wheelie and would take off. I was gonna take a ride today, but thought I better check the CVT out first. Belt dust and, more alarmingly, aluminum dust greeted me once I got the CVT cover off.  Two of my "extensions" are no longer attached to the variator.  One was still in the CVT. You can see that the screw snapped.  On;y one guide bushing was still in the transmission, and it's even damaged.  The guides look worn down from the lack of cushioning. Looks like once they got thin enough, they cracked.   It managed to last 250-300 miles at least. |
|
|
|
Post by 190mech on Dec 25, 2010 17:50:36 GMT -5
They lasted longer than I thought they would!There has to be a way to get the same result with out hanging on a sheet metal screw..We gotta think about that one... :stumped:
|
|
