Quote:
Originally Posted by stum
Gee the motor is working regardless if your slippers are giving or not... so the performance differences lie with your ability to get the torque to the ground w/o spinning out & keeping control while achieving a higher speed through the track. I would think anyone using the motor brake would want a very high center diff to avoid all brake power going to the front typically causing less control. If you have mechanical brakes I've found the stock 10k center is really great, but if your setup is braking via the motor I personally wouldn’t do anything less than 50k and just work your way up to the 500k if necessary. Keep in mind the Traxxas setup is different with the transmission as well as it using motor brakes, so the 500k is necessary; the 8ights are direct drive off the center diff and often have mechanical brakes still.. but not always.
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The opposite of this is actually true IMO. I use motor braking and I use 10K in the center on my truggy. When I hit the brakes, the diff unloads AWAY from the front where all the load is, so the front wheels don't lock up. A heavier oil will unload to the rear to a lesser degree and cause more push when braking. As Sammus mentioned, if you apply throttle smoothly, the diff doesn't suddenly unload to the front when accelerating, either. I wouldn't use anything less than 10K in the truggy center diff, but I wouldn't use any more than 20K or 30K unless I was driving on the road and didn't want any diff action. In a buggy, I would use 5k or 7k in the center. 10K works best for me in the truggy center. I use 7k-10k in the front, 10K in the center and 2k in the rear on my race truggy.
