R/C Tech Forums - View Single Post - Thicker or lighter oil in your center diff and why?
Old 05-01-2019 | 08:06 AM
  #19  
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Zerodefect
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From: Columbus, OH
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Originally Posted by Bul5
Hi,

Old thread but so good. I have been thinking how could I get tune more power to rear end (or to the front) so that up to 100% would go to rear axle and front wheels would just help a bit.I can do this by thicker oil in center diff but I don't want at any conditions let's say for example more than 20% of power to front. I could lock center diff and put some oil turbine filled something to the middle drive shaft or something like this. Is there anybody how has tried something like this?
He's asking about a viscous coupler. The rear drive shaft of such a diff/couple is locked to the carrier like a 2wd car. The front half of the diff/coupler floats free inside the diff. No gear connection at all. At the end of the front drive shaft is a fan like impellor inside the diff. Fluid resistance spins the front of the car.

It would suck in 1/8th scale, which rely on front wheel drive. Might be nice in 1/10th scale, when 2wd buggies are lapping the same times as 4wd in very high grip conditions like astroturf.
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