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Old 09-02-2014 | 12:05 PM
  #13411  
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vwduud
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From: Prairieville, LA
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Yea, brake bias and additional braking at low speeds was what I was looking for while trying mechanical brakes. Running 5K center diff fluid, I didn't realize just how balanced the brake bias was (with ESC brakes) for my driving style until I put the mechanical brakes on. While I had the mechanical brakes on, I did get a chance to adjust the bias through the range of more front to more rear. In the end I did get it to feel very similar (in bias) to that of the ESC brakes. What was off was the timing of the brakes and the amount of brakes. They were definitely stronger at lower speeds. So much so that upon entering pit lane to come in off a practice run, as I slowed down, I applied more brake (as I do with the ESC brakes as it slows the car down). This resulted in full lock flipping the car over from the front brakes grabbing hard. Was funny to watch. Slow motion "endo" in the way it went down.

And as Kevin mentioned, the added weight was of concern. For that day at the races, I didn't have enough time to remove the mechanical brakes when I decided to not use them. I simply disabled them from the radio and used the ESC brakes. The additional weight of the servo and hardware was quite noticeable. Something that could be tuned around, but it changed the way the car worked.

So not ready to completely give up on it. When I watch some of the guys that run both nitro and electric buggy, there seem to be more times than not that the nitro lap times are just slightly faster (at least at our track). Makes you wonder if the free-wheeling drive train (from a clutch) is a part of that equation. That and the already mentioned brake bias option.

Jim
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