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Old 11-29-2008, 01:26 AM   #1
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Default How tight the ball diff and belt should be?

Can any one share how you adjust your ball diff and belt. How tight/loose is appropriate?
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Old 11-29-2008, 01:33 AM   #2
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What kind of vehicle? 1/10, 1/12 ? For 1/10 scale I tighten it until is doesn't slip after the initial build or rebuild. I'll tighten the front a little more if I want more pull through the corners and leave the rear as is. As long as it doesn't slip and spins freely, I'm usually happy. Are you racing at Debbies?
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Old 11-29-2008, 01:36 AM   #3
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What kind of vehicle? 1/10, 1/12 ? For 1/10 scale I tighten it until is doesn't slip after the initial build or rebuild. I'll tighten the front a little more if I want more pull through the corners and leave the rear as is. As long as it doesn't slip and spins freely, I'm usually happy. Are you racing at Debbies?
My car is Tamiya TA05R
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Old 11-29-2008, 01:48 AM   #4
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I have the front belt on my 05 set quite loose, its probably got that way from the spool up front, the rear belt is a bit tighter. Providing the belts dont skip their teeth, the looser the better usually, it's a bit like the spur and pinion gear mesh, as it never pays to have them set overly tight.

Diff's, well as long as they dont slip you're pretty much good to go. hold the diff and one wheel whilst trying to turn the other wheel on the same end, if it turns with little resistance, its too loose. It should take a "reasonable" amount force to turn the other wheel, I can't really describe it over a forum.

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Old 11-29-2008, 01:50 AM   #5
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What kind of vehicle? 1/10, 1/12 ? For 1/10 scale I tighten it until is doesn't slip after the initial build or rebuild. I'll tighten the front a little more if I want more pull through the corners and leave the rear as is. As long as it doesn't slip and spins freely, I'm usually happy. Are you racing at Debbies?
How about the belts. I used to install them tight but not very which you can press down and feel the tension. But my friend runs his 416 with very loose belts, so loose that I feel that they might come off the pulley, but he is a good racer and won some races. So according to his experience, a little loose is good?
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Old 11-29-2008, 02:10 AM   #6
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How about the belts. I used to install them tight but not very which you can press down and feel the tension. But my friend runs his 416 with very loose belts, so loose that I feel that they might come off the pulley, but he is a good racer and won some races. So according to his experience, a little loose is good?
The tighter the belt, the more resistance there is usually. If you dont tap the boards or in general crash much, you shouldn't have any issues by having it set a bit looser
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Old 11-29-2008, 03:31 AM   #7
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How about the belts. I used to install them tight but not very which you can press down and feel the tension. But my friend runs his 416 with very loose belts, so loose that I feel that they might come off the pulley, but he is a good racer and won some races. So according to his experience, a little loose is good?
Sorry, forgot about the belts. Mine are pretty loose. I run them tight enough to prevent skipping but as loose as possible. Loose belts will free up the drivetrain and allow more top end, while tighter belts will provide a little more torque while giving away some speed. If you're running at Debbies, the current layout should allow you to tighten them up a little since there isn't a long straight. Talk to Dave if you get the chance. He's the Philipino that looks Mexican. Tell him I said that too.
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Old 11-29-2008, 06:42 AM   #8
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He's the Philipino that looks Mexican. Tell him I said that too.
HA! You throw Asian jokes around in VA?

I thought we only did that in the Chicago area.

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