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TLR 22 2.0 Race Kit: 1/10 2WD Buggy thread

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TLR 22 2.0 Race Kit: 1/10 2WD Buggy thread

Old 10-28-2014, 05:16 PM
  #9196  
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Has anyone else noticed much more even L/R steering characteristics by centralising the servo horn on their 22 2.0? This is with the TLR bellcranks, alloy horn and standard servo.

I tried the 30mm link as per the SCT 2.0 manual and it just doesn't feel right even after correcting the epa. I wonder if the 90 degree horn to link rule only applies to the rack system?

Last edited by 2hundy; 10-28-2014 at 05:35 PM.
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Old 10-28-2014, 05:36 PM
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Hey Frank,

I just picked up a 22 rear motor. What setup would you recommend for club racing at OCRC ?
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Old 10-28-2014, 05:42 PM
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Originally Posted by 2hundy
Has anyone else noticed much more even L/R steering characteristics by centralising the servo horn? This is with the TLR bellcranks, alloy horn and standard servo.

I tried the 30mm link as per the SCT 2.0 manual and it just doesn't feel right even after correcting the epa. I wonder if the 90 degree horn to link rule only applies to the rack system?
I ran into the same problem. went back and forth between measuring turbuckles to be equal, adjusting epas and driving car to make sure toe was straight. ended up lengthening the link a few full turns before everything was close to perfect.
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Old 10-28-2014, 06:18 PM
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Originally Posted by lbckevin
Hey Frank,

I just picked up a 22 rear motor. What setup would you recommend for club racing at OCRC ?
Try Franks OCRC setup for RM....
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Old 10-28-2014, 06:25 PM
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Originally Posted by Wildcat1971
Try Franks OCRC setup for RM....
He has two of them listed. Just to clarify.
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Old 10-29-2014, 12:48 AM
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Originally Posted by Kewlbug
I ran into the same problem. went back and forth between measuring turbuckles to be equal, adjusting epas and driving car to make sure toe was straight. ended up lengthening the link a few full turns before everything was close to perfect.
I finally settled on a link length of 32.8mm with the servo horn vertical.
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Old 10-29-2014, 04:14 AM
  #9202  
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Originally Posted by 2hundy
Has anyone else noticed much more even L/R steering characteristics by centralising the servo horn on their 22 2.0? This is with the TLR bellcranks, alloy horn and standard servo.

I tried the 30mm link as per the SCT 2.0 manual and it just doesn't feel right even after correcting the epa. I wonder if the 90 degree horn to link rule only applies to the rack system?
I have the same issue...I got it as close as perfect as I could and stopped caring about it however it still bothers me from time to time
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Old 10-29-2014, 06:58 AM
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We had a 6070 servo in and offset the arm towards the left or drivers side one tooth with the link built to the 22 2.0 specs and L-R EPA were identical. Tyler hit a tube and broke servo so we only had a 6100 to put in it and has to run the servo arm nearly vertical with same link length as the other servo. EPA still even L-R. Not sure why servo arms had to be in different positions but it worked out ok.
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Old 10-29-2014, 08:40 AM
  #9204  
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Originally Posted by lbckevin
Hey Frank,

I just picked up a 22 rear motor. What setup would you recommend for club racing at OCRC ?
Kevin, I haven't run a ton of rear motor, but I'd probably start here:
http://www.tlracing.com/ProdInfo/Fil..._Surf_City.pdf
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Old 10-29-2014, 10:05 AM
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Originally Posted by JP.R
In my testing I have not had to change my setup at all with the short chassis from the stock longer one. All current setups will work just fine with the stock chassis.

JP
Yeah, I agree with JP here. I'm running the latest Phend setup with the stock chassis and still works great. Check out my race from last weekend, I'm sitting second on the grid http://youtu.be/stojXImJm7Y#t=13m45s . People down here are taking a second look at TLR!
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Old 10-29-2014, 06:36 PM
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I've been working hard on trying to find a good setup for mid motor for outdoor. Our track is hard packed clay with some sand and will get dusty. This is one of JR Mitch setups and the only thing I change is I run super soft scrubs in the front and super soft blockade in the rear. I am faster with this mid motor setup than I was with a very good rear motor setup on the same layout. I will be running this setup indoors but will change tires to dirt webs. If you are looking for a good MM setup, try this one. Thanks to JR Mitch for the setup.
TLR 22 2.0 Race Kit: 1/10 2WD Buggy thread-image.jpg
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Old 10-30-2014, 12:57 AM
  #9207  
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http://www.tlracing.com/Products/Def...odID=TLR334018

Brass Weight, MM Hinge Pin Brace +35g:22/2.0/T/SCT
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Old 10-30-2014, 03:19 AM
  #9208  
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Originally Posted by RandyJones
We had a 6070 servo in and offset the arm towards the left or drivers side one tooth with the link built to the 22 2.0 specs and L-R EPA were identical. Tyler hit a tube and broke servo so we only had a 6100 to put in it and has to run the servo arm nearly vertical with same link length as the other servo. EPA still even L-R. Not sure why servo arms had to be in different positions but it worked out ok.
It's not the EPA that was the problem with mine but more the curve. With a short link when steering full right the link would go below horizontal, pulling the steering back to the left slightly. Increasing the EPA only made this worse. Left was fine. Hence the really uneven L/R steering feel. Can you imagine what the plotted steering curve would look like?

I tried the achieve a horizontal link at full lock left and right. Finally did it and what a difference it made!

The lateral movement of the rack/cranks is what's important here. The arc the horn moves through produces a natural steering curve (positive expo). I can't see how anything other than a vertical horn can produce the same curve left and right.

I hear people saying to aim for 90 degree horn to link to offset the effect of the horn being higher than the rack/crank but this height difference is irrelevant.

Last edited by 2hundy; 10-30-2014 at 03:55 AM.
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Old 10-30-2014, 03:46 AM
  #9209  
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Just to explain myself further. Try the following:

With the offset horn and EPAs set to achieve full lock in both directions, then set your d/r half what it was.

I can guarantee your buggy will steer more to the right.

The L/R curves are different.

With my servo horn vertical I can change d/r and be confident it's not changing the l/r curves? I also run some negative expo until the steering feels linear

Last edited by 2hundy; 10-30-2014 at 03:58 AM.
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Old 10-30-2014, 04:08 AM
  #9210  
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I'll have to that a try after work.
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