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Weight Distribution - How to do perfectly?

Weight Distribution - How to do perfectly?

Old 04-10-2004, 01:18 AM
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I see people use 4 scales, one on each wheel . . .
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Old 04-10-2004, 01:22 AM
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I would rather do it with 4. But the budget hasnt had room for that yet. I wish they made scale pads I could attach to my longacre scales for scaling full sized stuff then I wouldnt have to do any math when I scale.
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Old 04-10-2004, 01:49 AM
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I heard 4 scale have calibration issue.
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Old 04-10-2004, 01:54 AM
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You would just have to level them with a small level.
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Old 04-10-2004, 03:33 AM
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The bigger the spur gear you get, the more the motor is moved to one side shifting the weight.
Kinda like a teeter toter, further out you go from center line more effect the wieght has Correct?
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Old 04-10-2004, 09:48 AM
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Exactly. The chassis centerline in the fulcrum.
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Old 04-10-2004, 06:09 PM
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Default 4 Scale System

I purchased a 4 scale system on Ebay. It comes with 4 postal scales and a flat board with 4 adjustable feet and a bullseye bubble in the middle to balance the board.

I setup my car yesterday afternoon and raced last night. The car was unbeleivable. I won every qualifier and the main for the first time in many tries.

I also found a good site to describe the balance process http://www.ground-control.com/?D=e04...ffa901ba6b5aaa

As Speedie has pointed out balancing the car is very difficult. I have not tried the lead weights yet. I just adjust the spring collars.

My car came out LF= 23.7%; RF=25%; LR=24.9%; RR=26.3%. This comes out to Lft/Rt=48.6%; Rear/Front=51.3%; and cross balance of 49.9% The total weight was 1430 grams. I was not able to get the weights exact, but it was close.

I also own the Integy System, which works very well. 4 scales are just a little faster, and possibly more accurate. Both systems worked much better than my previous tweak board.
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Old 04-10-2004, 06:27 PM
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Man, your car sounds so good to being perfect, 49.9% on one side . . . .
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Old 04-10-2004, 08:35 PM
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Originally posted by AzNDRAGster
Man, your car sounds so good to being perfect, 49.9% on one side . . . .
It is actually not 49.9% on one side. This is the cross weight measurement where LF+RR = LR+RF. This is not that hard to do. The hard part is getting each side to weigh the same. My left side has only 48.6% of the weight compared to my right side
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Old 04-10-2004, 08:42 PM
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Still, thats pritty close. . . You can adjust cross weight by adjusting shock preload right?
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Old 04-10-2004, 08:47 PM
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Here is a picture of my 4 scale system. Fiarly simple. I purchased it on ebay but it looks pretty easy to make
Attached Thumbnails Weight Distribution - How to do perfectly?-p4100006.jpg  
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Old 04-10-2004, 08:49 PM
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Originally posted by AzNDRAGster
Still, thats pritty close. . . You can adjust cross weight by adjusting shock preload right?
Yes, but you need to do what Speedie mentioned earlier, and adjust all four collars at once one turn at a time, to maintain ride height.
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Old 04-10-2004, 08:50 PM
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Yeah. May try that, does it help handling or transitoning through corners better?

Last edited by Tek Nickal; 04-10-2004 at 08:58 PM.
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Old 04-10-2004, 09:02 PM
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I put the car on the track for practice last night and it handled better than ever. The only major change for the week was the scale system. I race at Hobby World in Gilroy, on carpet, and the inside of the track is pretty tight. I was able to get around the corners with more confidence and speed.
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Old 04-10-2004, 09:42 PM
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That four scale system look really nice. Is that custom made?
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