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Aftermarket clutch weight testing from this weekend

New Question ,Seems most dyno sheets i've seen a tuned SW makes the most turque/hp 8600/8700 so why run them at 9000rpm ??Mine rips at 8800 rpm
 

New Question ,Seems most dyno sheets i've seen a tuned SW makes the most turque/hp 8600/8700 so why run them at 9000rpm ??Mine rips at 8800 rpm

Mine runs sweet at 9,000 (per Evolution Powersports) with the EVO Stage 4 ....I answered the previous post for another member running Stage 4 from EVO.

I have also been told another flash supplier runs 9,000 rpm for their trail versions under 275 horse.

But other companies run 8,200 for full boost race applications.
 
New Question ,Seems most dyno sheets i've seen a tuned SW makes the most turque/hp 8600/8700 so why run them at 9000rpm ??Mine rips at 8800 rpm
I agree mine rips at 8600-8700 too
 
Huge difference on bottom end snap/corner to corner when you set them up to rev 9000. Not even close on the tight trails. Now if you are out radar running, or top end running....you want to be 8800/8900 max.....You will pull higher speeds.

Terry, you bought out Lonn? So you are running the show now for Thunder??

Dan
 
Huge difference on bottom end snap/corner to corner when you set them up to rev 9000. Not even close on the tight trails. Now if you are out radar running, or top end running....you want to be 8800/8900 max.....You will pull higher speeds.

Terry, you bought out Lonn? So you are running the show now for Thunder??

Dan

Yes, myself and Shagman purchased the clutching portion of Thunder Products ;)!
 
Beerman, here is my setup:


Orange primary spring with 2 glide washers (one each end)
58g base weight
Tip 7/16 steel bolt with 2 thick washers
Mid 3/8 aluminum bolt with 1 thin washer
Heel 3/4 set screw

Secondary
Orange spring set 3-3 with 33/35 helix

9,000-9,050 rpm

Gates carbon fiber belt in 8jp length (40C4313)

XTX 141, 1.6 Cobra track, no studs and 21/41 gearing. My clutches are machined for more overdrive.
Is this a good start for a complete stocker xtx? I am running the Ultimax XS825 and I have Thunder Products secondary rollers.
 
Is this a good start for a complete stocker xtx? I am running the Ultimax XS825 and I have Thunder Products secondary rollers.

Stock XTX Sidewinder
Heel - 3/4 Allen
Mid - 3/8 Aluminum with 2 thin washers
Tip - 3/8 Steel with 1 thick washer

Secondary
Orange spring set at 3-2 with the 33/35 helix

If you run the setup above, you will not pull rpm on top as that is a setup for a non-stock sled.
 
For myself and others, what do you reccomend for a STOCK ( for now ) 2020 LTX-GT. Any off season sales specials coming up ?
 
For myself and others, what do you reccomend for a STOCK ( for now ) 2020 LTX-GT. Any off season sales specials coming up ?

Thunder Products Clutching will be doing an off-season promo on all in stock items (which is pretty much everything).

Stock SW setups for LTX would be:
Heel - 3/4 Allen
Mid - 3/8 Aluminum
Tip - 3/8 Steel with 1 thick washer
 
Stock XTX Sidewinder
Heel - 3/4 Allen
Mid - 3/8 Aluminum with 2 thin washers
Tip - 3/8 Steel with 1 thick washer

Secondary
Orange spring set at 3-2 with the 33/35 helix

If you run the setup above, you will not pull rpm on top as that is a setup for a non-stock sled.
So... Do I need to start completely over or is there something I can do? Lighter tip weight? xtx 141
 
So... Do I need to start completely over or is there something I can do? Lighter tip weight? xtx 141

Yes, lighter tip weight.

Every sled is different. That's what is nice about our adjustable weights. You can fine tune your sled in to how you want it. Our setups are what we have to get you very close.
 
You are very welcome!

Here is a video of the last TY ride. Most are running Thunder Products Clutching setups with their turbos and even some modified competitor clutch kits with our add on's.


Here is a video from awhile ago with a few of NA Vipers running our clutching in the deep.

 


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