Motor Springs
#1
Motor Springs
I am sorry if this has been asked before, but I would like to know if some one would be kind enough to explain the different motor spring combinations and the effect to a motor. for example: what spring color combo would give you the most torque? also which would give the most rpm? etc. Thanks
#3
That is not correct.....heavy springs give more RPM.....lighter springs give more torque.....
Later EddieO
Later EddieO
#5
1/12th Scale uses lighter springs cause you have less voltage, so there is less brush bounce, so all a heavier spring will do is put more drag on the comm...
Don't believe me.....ask EA....ask Todd Putnam, ask Dave from Axiom, ask Brandon from Paradigm....ask Jim Dieter, Oscar Jansen, Chad Phillips....
I know it sounds backwards....but that's the way it works....find a dyno and try it out...
Later EddieO
Don't believe me.....ask EA....ask Todd Putnam, ask Dave from Axiom, ask Brandon from Paradigm....ask Jim Dieter, Oscar Jansen, Chad Phillips....
I know it sounds backwards....but that's the way it works....find a dyno and try it out...
Later EddieO
#8
Motor Springs
There is a stock motor thread in this forum check back a page or two.
Also www.rccars.com had Big Jim (Dieter's) forums a great deal of info there also, although some may be somewhat outdated.
Also www.rccars.com had Big Jim (Dieter's) forums a great deal of info there also, although some may be somewhat outdated.
#9
That would be Big Jim Greenemeyer.....Jim Deiter is a completly different person and rarely posts online. Big Jim died in June of 2005, thats why the forums are a bit outdated, though 95% of the information still applies.
Later EddieO
Later EddieO
#10
Originally Posted by EddieO
That is not correct.....heavy springs give more RPM.....lighter springs give more torque.....
Later EddieO
Later EddieO
It does seem to vary from motor to motor, as I have tried lighter springs which had no effect on the test motor.
Using heavier springs also did NOT increase the RPM on any of the 5 or so motors I tested.
Skiddins
#11
Originally Posted by kobiwan
Thanks for the info guys. I run an express CO27 stock motor on a small tight track and I wanted to know what spring combo would give me the most tourque. I want to explode out of the corners.
#12
Tech Elite
iTrader: (9)
Originally Posted by Skiddins
Having used a dyno which uses a load, I found that generally, the heavier the spring, the more torque.
It does seem to vary from motor to motor, as I have tried lighter springs which had no effect on the test motor.
Using heavier springs also did NOT increase the RPM on any of the 5 or so motors I tested.
Skiddins
It does seem to vary from motor to motor, as I have tried lighter springs which had no effect on the test motor.
Using heavier springs also did NOT increase the RPM on any of the 5 or so motors I tested.
Skiddins
No offence but your five or six motors compared to Eddie's 40000+ is not even worth arguing over...
-Shookie <><
#13
Tech Master
iTrader: (14)
Originally Posted by EddieO
That is not correct.....heavy springs give more RPM.....lighter springs give more torque.....
Later EddieO
Later EddieO
I was always under the impression that a stiffer spring increases the contact tension between the brush and the com, increasing the voltage being delivered to the com netting more power.... however, with the sacrifice being increased drag due to the brushes acting as a brake. A lighter spring would not act against the rotating force of the com - therfore leading to greater RPM. Obviously this assumption was wrong.
#14
Originally Posted by duckman996
That does sound backwards...
I was always under the impression that a stiffer spring increases the contact tension between the brush and the com, increasing the voltage being delivered to the com netting more power.... however, with the sacrifice being increased drag due to the brushes acting as a brake. A lighter spring would not act against the rotating force of the com - therfore leading to greater RPM. Obviously this assumption was wrong.
I was always under the impression that a stiffer spring increases the contact tension between the brush and the com, increasing the voltage being delivered to the com netting more power.... however, with the sacrifice being increased drag due to the brushes acting as a brake. A lighter spring would not act against the rotating force of the com - therfore leading to greater RPM. Obviously this assumption was wrong.
So a stiffer spring would draw more amps for more punch , and a lighter spring draws less allowing for better top speed. Makes sense when you think of it like that.
#15
Tech Master
iTrader: (14)
Originally Posted by budachi
Think of it more like gear ratios. A low gear translates more power into acceleration and a high gear allows more speed.
So a stiffer spring would draw more amps for more punch , and a lighter spring draws less allowing for better top speed. Makes sense when you think of it like that.
So a stiffer spring would draw more amps for more punch , and a lighter spring draws less allowing for better top speed. Makes sense when you think of it like that.
Stiffer spring = more punch. Punch is a direct result of torque
Lighter spring = more top speed. Top speed is a direct result of RPM.