10" or stock 9" drivers on srx radar sled

T

t-rav

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Aug 27, 2008
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Age
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Location
hanmer,ontario
Hey guys im building an srx radar running sled with a speed track what is better the stock drivers or 10" doin 1320ft runs
Sled is getting slammed
 

.....
For 10 Tooth Drivers
(given in 9 tooth equivalent numbers)
10T 17T 18T 19T 20T 21T 22T 23T
38T 2.01 1.90 1.80 1.71 1.63 1.55 1.49
39T 2.06 1.95 1.85 1.76 1.67 1.60 1.53
40T 2.12 2.00 1.89 1.80 1.71 1.64 1.57
41T 2.17 2.05 1.94 1.85 1.76 1.68 1.60
42T 2.22 2.10 1.99 1.89 1.80 1.72 1.64
 
No brainier TRav. The info you just got is what you need to do. 10 tooth drivers (not 10") center drives only trued up on a lathe.
 
Added friction. We tried them and lost top end speed. Great on a drag race set up when launching really hard with big traction. Keep you from ratcheting the track. In our situation running 1320 we run fewer studs and roll out. It's an aggressive roll on but nothing like a drag race launch. Track ratcheting with 10 tooth drivers in our sleds is not a problem.
 
Thanx alot guys and ya sorry dan lol 10" have never delt with them before thanx again everyone I will go pick up some 10 tooth drivers and throw them on and dan are they hard to do do I just press the old ones off and press the 10s back on
 
Little trick is to scribe a line on the edge of the original drivers before pressing them off. Then use those lines to help centering the new drivers. Note ey may not be the same width on the collars!!!! I have used a few different brands but will only recommend the wahl 10 tooth drivers. They are a bit stronger and stay truer when pressing them on. Good luck.
 
Yes there is a nice advantage. Not necessarily for trail riding but every bit helps in racing. Keep in mind you wont be truing the hex jack shaft. You will cut the plastic drivers. I used to cut two diameters. The lugs at a smaller diameter then the wheel at the larger diameter. This prevents the lugs from nesting in the pocket and creating friction as the plastic driver rubs the rubber track lugs. ---mac---
 
Also installing the drivers to the correct distances from the end of the shaft is very important. You absolutely do not want friction where the driver is in the wrong position left or right rubbing on the rubber lugs. The proper location requires accurate measurement.
If you get this wrong come installation day you will see your mistake only after the jack-shaft is reinstalled. Also carefully inspect how your new track rides left or right nested within your new drivers. If you don't like the position remove and adjust. You will notice an allowance where the track can move left or right without binding.
I used to have the distances from a service manual for my old SRX and vipers. Maybe a member here can post the diagram and distances.
T-rav absolutely nail this part of your project for best results. ---mac---
 


I think this diagram was for my Viper. Maybe other members can advise if SRX and Viper are same or different.
 
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