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Old 05-31-2012, 11:57 AM   #1
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Questions?? Differentials in 4wd buggy?

I'm getting a 4wd electric buggy (Himoto Zmoto) and I'm wondering what a good baseline to start experimenting with different weight fluids would be. I;ve seen a few things that refer to thinner or thicker in each differential, but relative to what? Each other? All Three?
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Old 05-31-2012, 10:36 PM   #2
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Originally Posted by brenman View Post
I'm getting a 4wd electric buggy (Himoto Zmoto) and I'm wondering what a good baseline to start experimenting with different weight fluids would be. I;ve seen a few things that refer to thinner or thicker in each differential, but relative to what? Each other? All Three?
What up fellow RC racer. Diff fluids can be ranged from 500(VERY thin) to 200,000(VERY thick) and everything in between. Most buggies are usually in the 1,000(again thin) to the 10,000(again thick) range. Each diff doesn't have to be the same and a good starting point is 5,000 in front, 5,000 in center and 3,000 in rear. This will provide a decent balanced setup for multiple track surfaces (dry, wet, tacky).

This next part is directly from the Hudy Setup Guide.....

FRONT
Thinner diff fluid (low number)
-increases steering into corners
-to thin and you can loose front traction (front wheel spin)
Thicker diff fluid (high number)
-Better braking in middle of corner (rotates)
-better steering for corner exit

CENTER
Thinner
-front wheels unload more during acceleration (to low = wheel spin)
-decrease on throttle steering (harder to steer when accelerating)
-better for rough tracks conditions
-car turns better out of corner
Thicker
-More all-wheel drive effect
-Better acceleration
-Increases on-power steering (reduces understeer)
-Better suited on high-bite, smooth tracks

REAR
Thinner
-Increases cornering traction
-Increases steering into corner
Thicker
-Decreases rear traction

Hope this helps a little.
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Old 06-01-2012, 01:23 PM   #3
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Well Answered....
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Old 06-02-2012, 04:51 AM   #4
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Helps alot, thanks
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Old 06-13-2012, 07:09 AM   #5
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He did a great job with his answer. Nothing to add here
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Old 07-14-2012, 08:20 AM   #6
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Just copied and saved, good answer 4422 what i was looking for.
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