R/C Tech Forums - View Single Post - When will there be an 1/8th scale 4 stroke Motor????
Old 10-29-2010 | 09:04 PM
  #155  
Storydude1
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Massive FAIL tonight. No Video, but it would have been cool.

Turned clutch around, grabbing better, but still slipping like death....And the cause of massive fail.

Zinging in the parking lot tonight back and forth. From a dead stop, clutch is slipping for a good 50 feet@ WOT..When clutch grabbed, it was like a rubberband effect....20mph to 40+ and climbing(still 22/46) and quickly running out of room. Engine RPM did not change but slightly during this so I know motor is WOT and wound out, just clutch cannot handle it.

So, 3rd pass, someone comes into the lot as I"m doing a highspeed run away from me, right at the entrance I"m by. I lock up brakes and as it slows, try to slide it sideways to power back towards me to avoid them.....Not figuring it was doing 40.

Do a barrel roll!


About 30 of them to be exact


Damagereport:
1 bent front shocktower
4 blown body posts
1 broken front universal
1 broken knuckle
1 shattered ego


This testbed chassis handles like crap to begin with...Thinking time to convert the Jammin X1....At least that doesn't handle like a 1977 SuperWinne.

Conclusion:
Needs to drop about 3-5 teeth on clutchbell. no need for that much speed for what I'm looking for. Should allow clutch to not slip as much, should improve acceleration, and should save clutchshoes(4 sets of carbons and one set of aluminum Max Lifes so far in testing). If this won't work, I'll find some of those integy shoes with the setscrew weights and fill with lead shot.

Might need super firm springs to keep them off the bell, but I know they'll grab then.

Cooling doesn't seem to be an issue with this motor too much. Still getting 240-250 at idle, and 350-365 after a few hard pulls. Of course ambient temps are in the low 50's too.

I'll snap pics and video one of these days
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