Originally Posted by Key
What are the pros and cons of the electri-clutch system tekno uses? Is it really necessary?
It will completely isolate any cogging effects. This is becoming more of a benefit as the torquey higher voltage/lower kv motor systems are becoming more popular.
It also allows the use of mechanical brakes to achieve true front/rear brake bias for faster cornering. This takes the braking burden off of the motor and ESC and results in cooler operating temperatures.
Since the clutch is disengaged while off throttle it will jump better because there is no motor resistance or drag brake on the drivetrain to nose the car down while in the air.
Hardened clutch bells have lasted us over a year and are still going strong. Pinions wear out faster.
If you have great traction, direct drive will accelerate a tiny bit faster with the same exact setup. We still pull the nitros like nobody's business and have never had trouble clearing any jumps though.
Replacement of clutch bearings every once in a while depending on use and dust. The shoes don't wear as much as one might think. We've had clutch shoes last 9 months and they seem to get better with wear as they fully seat in to the clutch bell.
Some say there is added complexity, heat, and weight. It is more complex to set up with mechanical brakes, but it isn't rocket science. As for heat and wasted energy, this is not true. If the clutch is set up properly, it will end up being more efficient and cooler since your motor and ESC aren't generating/wasting heat while braking. There is added weight (about 1oz or so), but honestly, we've never been able to detect that it's heavier while driving