TLR 22 3.0 Race Kit Thread!
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#1876
Tech Adept
#1877
Hey Frank, question about gearing for stock 17.5 class racing. In the manual it gives the formula to figure out final drive ratio and lists 9.02:1 for a 7.5 motor with the 78/21 gearing and your suggested gearing for stock is 70/31 which comes out to 5.48:1 final ratio...
curious what is the ideal FDR for stock, if there is such a thing.
curious what is the ideal FDR for stock, if there is such a thing.
Most stock racers are running between 29T and 35T with a 70T spur, depending on the characteristics of their motor.
#1878
Ever since the 2.0, been having problems with the cvd pin at the axle/dogbone joint. Every set I've bought, I've degreased the threads, used locktite, and torqed down really tight. I get anywhere from 3-4 runs, to several weeks out of them, but always eventually fail. Pin slides out, ruins a rear hub, and have to buy another set of cvds and their very pricey. Anyone else in this same boat? Any other option parts that will last longer/better?
#1879
Ever since the 2.0, been having problems with the cvd pin at the axle/dogbone joint. Every set I've bought, I've degreased the threads, used locktite, and torqed down really tight. I get anywhere from 3-4 runs, to several weeks out of them, but always eventually fail. Pin slides out, ruins a rear hub, and have to buy another set of cvds and their very pricey. Anyone else in this same boat? Any other option parts that will last longer/better?
I have seen some use couple of layers of shrink tubing to try to keep the pin in, but really, that pin should not be coming out with enough torque and thread lock.
Folks mention cleaning everything before assembly. I have actually not even done that. And, like mud, I too put some black grease in there.
#1880
Tech Master
iTrader: (51)
I'm running the D4 maxzilla motor and sunday at Bumps&Jumps after the 10 minute main the motor temp was only about 125 degrees. I got the Schelle "stock" kit that came with 72 and 76 spurs but I was running the 72 tooth Sunday. Maybe I'll try to find a 69 for this weekend, but what range (roughly) pinion should I start with?
#1881
Tech Fanatic
iTrader: (4)
I'm running the D4 maxzilla motor and sunday at Bumps&Jumps after the 10 minute main the motor temp was only about 125 degrees. I got the Schelle "stock" kit that came with 72 and 76 spurs but I was running the 72 tooth Sunday. Maybe I'll try to find a 69 for this weekend, but what range (roughly) pinion should I start with?
72/32 = 5.47
72/31 = 5.67
#1882
Tech Addict
iTrader: (4)
I'm running the D4 maxzilla motor and sunday at Bumps&Jumps after the 10 minute main the motor temp was only about 125 degrees. I got the Schelle "stock" kit that came with 72 and 76 spurs but I was running the 72 tooth Sunday. Maybe I'll try to find a 69 for this weekend, but what range (roughly) pinion should I start with?
#1884
Tech Champion
iTrader: (32)
I'm running the D4 maxzilla motor and sunday at Bumps&Jumps after the 10 minute main the motor temp was only about 125 degrees. I got the Schelle "stock" kit that came with 72 and 76 spurs but I was running the 72 tooth Sunday. Maybe I'll try to find a 69 for this weekend, but what range (roughly) pinion should I start with?
#1885
#1886
I've got my chassis design somewhat finalized. The first version I made had some serious design issues that have now been addressed in the new design. I bought a sheet of garolite, which is heaver and not as strong as CF, to test the new design. The new design came out so well I decided to switch my car over to the new chassis for testing. I was rather surprised to find the chassis is nearly as stiff as the stock aluminum chassis despite being made out of a much more flexible material. However, the garolite actually weighs about 10g more than stock! I will be getting some track time with it soon, so if all goes well I'll be ordering a sheet of high quality CF to make the final version pretty soon.
#1887
That's pretty friggin sweet !
#1888
Tech Adept
I've got my chassis design somewhat finalized. The first version I made had some serious design issues that have now been addressed in the new design. I bought a sheet of garolite, which is heaver and not as strong as CF, to test the new design. The new design came out so well I decided to switch my car over to the new chassis for testing. I was rather surprised to find the chassis is nearly as stiff as the stock aluminum chassis despite being made out of a much more flexible material. However, the garolite actually weighs about 10g more than stock! I will be getting some track time with it soon, so if all goes well I'll be ordering a sheet of high quality CF to make the final version pretty soon.
this looks really nice. are you going to make a couple of them? if not would you be against sharing your files so that others can get their own made up. i have local access to a cnc machine (and hope to get my own someday soon).
plus i would like to modify it for use with my low profile transmission project
#1890