why do some dislike clutches?

[_paralyzed_]

I was born with a club face and had to attend a special school as a youth. I was too young to know any better, but the principal gave "special" attention to some of the weaker boys. He stole my innocence. That principal was a clutch, and ever since then I have never liked clutches.........

[lincpimp]

Originally Posted by its me

Little off topic but has any one had/tried clutches on a outrunner Direct to diff set up? Thinking out loud but wouldn't that take some torque and cogging out of the direct to diff set up, then you guys wouldn't have to use HV tp get past the cogg?

I thought about this too, and decided that a larger clutch than a std 1/8 nitro would be required due to the lack of any gear reduction that a direct to diff setup has. Maybe a clutch out of a 1/5 scale would work? But two would be needed, one on each end of the motor.

[lincpimp]

Originally Posted by _paralyzed_

I was born with a club face and had to attend a special school as a youth. I was too young to know any better, but the principal gave "special" attention to some of the weaker boys. He stole my innocence. That principal was a clutch, and ever since then I have never liked clutches.........

Club face huh? "Special" attention to the weaker boys? I almost thought you were serious...

[_paralyzed_]

[lincpimp]

Originally Posted by _paralyzed_

That was good, even by my standards.

[_paralyzed_]

it was all worth it!

[its me]

Originally Posted by lincpimp

I thought about this too, and decided that a larger clutch than a std 1/8 nitro would be required due to the lack of any gear reduction that a direct to diff setup has. Maybe a clutch out of a 1/5 scale would work? But two would be needed, one on each end of the motor.

My thoughts exactly then you could keep brake bias AND have a super low to the ground COG :)

[mk351e]

should have mentioned that I WILL be using mechanical brakes for this setup, not the motor. My only reason for wanting to use the clutch is simply to take the stress of shock from a landing off the motor, nothing else really. I do agree with everything said so far about the clutch adding stress to the system b/c of weight, etc., but what about the shock to the driveline during a landing?? Can't be good for the motor, no?

[lincpimp]

Originally Posted by mk351e

should have mentioned that I WILL be using mechanical brakes for this setup, not the motor. My only reason for wanting to use the clutch is simply to take the stress of shock from a landing off the motor, nothing else really. I do agree with everything said so far about the clutch adding stress to the system b/c of weight, etc., but what about the shock to the driveline during a landing?? Can't be good for the motor, no?

This is why a slipper would be nice, can't wait for mike's slipperential to come out. I want one for my hyper st, as I really want to race that truck!

The elimination of cogging has probably already been covered here. But I also found another advantage on my Losi Truggy. The "direct drive" spur/pinion made my 1515/1y run hotter probably due to the load on the motor to get the larger truggys moving from a dead stop. With the clutch, you can get the rpm up on the motor before it is "loaded" up. On a side note, I put a really small outrunner( that had no business being in there) in my 8ight-T, spur/pinion it would overheat the motor and ESC right away. With the clutch, I ran an entire 5000 mah pack and the motor never went above 90 degrees and the ESC ran about 120-125.

So, would the clutch allow for more motor options?

sorry for the delay in the reply been busy all weekend. the 1/8th oval racing is 45laps or five minutes which ever the sooner and with the 9xl 51 spur 18 pinion direct drive i would get 62 laps out in practice runs on 4cell flight power 5350mh bearing in mind you are on full throttle 80% of the run. when installed the elektri clutch on the same set up it produced 86 laps track time.
this weekend was a race meeting and after each race and some warm up laps i recharged the lipos and i had used 2900 to 3100 mhs for this track time hope this helps
btw the inner oval barrier length is 85 mts

[lincpimp]

Originally Posted by Eastrax RC

sorry for the delay in the reply been busy all weekend. the 1/8th oval racing is 45laps or five minutes which ever the sooner and with the 9xl 51 spur 18 pinion direct drive i would get 62 laps out in practice runs on 4cell flight power 5350mh bearing in mind you are on full throttle 80% of the run. when installed the elektri clutch on the same set up it produced 86 laps track time.
this weekend was a race meeting and after each race and some warm up laps i recharged the lipos and i had used 2900 to 3100 mhs for this track time hope this helps
btw the inner oval barrier length is 85 mts

Interesting, the increase in lap numbers must be due to the motor not drawing as much current to get the truck moving from low speeds/standstill. I have a tekno revo, and the rcm mount too, I may have do some runtime tests with it both ways and see if it does the same as yours. I assume that you are using mech brakes in both situations?

[jhautz]

You could probably get the same extended runtime results results by turning up the punch control or current limiter on the ESC and forget about the clutch.

when i was using a 7xl no clutch but direct drive and found this to be to fast against the nitro's i found by going to mech brakes and switching of the speedo brake this also increased my run time but at this early stage of testing i was only using 2200mh 4 cell lipo and was unable to get the 5 mins i would only get 23 laps but the mech brakes increased it to 31