Free spinning drivetrain
10-27-2003, 08:52 PM
#1
Free spinning drivetrain
I was wondering how some of the cars that i see can spin for 6 or more seconds? i need help.
10-27-2003, 08:58 PM
#2
Tech Fanatic
On which car do you want the free drivetrain?
10-27-2003, 09:09 PM
#3
This has been discussed before on other threads. Please try doing a search next time. This place is like the library sometimes. The answer's there, you just gotta find it 
Thread > How Free is Your Drivetrain
Thread > How Free is Your Drivetrain
10-28-2003, 06:07 AM
#5
Originally posted by Windsorguy99
Sure...there's information all over this site....
unfortunately sometimes a lot of that information is buried in threads that are thousands of posts long.
Sure...there's information all over this site....
unfortunately sometimes a lot of that information is buried in threads that are thousands of posts long.
.
10-28-2003, 06:47 AM
#6
10-28-2003, 07:02 AM
#7
14 seconds.....This is not long at all.My evo3 does that with just the bearings sprayed out but I feel the drivetrain is free but it doesnt effect the cars handling or efficiency as much as we would like to think.Especially on a tc3 where you have to compromise the car to get it that free.My tc3 spins for about 10 seconds and that good enough for me.
10-28-2003, 10:30 AM
#8
Tech Elite
Free spinning drivetrain
Guys;
When discussing freespin, it must be understood that with the small amount of power that our Engines/Motors produce, ANY amount of drag causes power to be lost at the Wheels.
Obviously the more power at the wheels, the faster the Car will be. Anything at all that can be done to reduce Frictional loses, will result in improved performance of the Vehicle (No matter what size).
When discussing freespin, it must be understood that with the small amount of power that our Engines/Motors produce, ANY amount of drag causes power to be lost at the Wheels.
Obviously the more power at the wheels, the faster the Car will be. Anything at all that can be done to reduce Frictional loses, will result in improved performance of the Vehicle (No matter what size).
10-28-2003, 02:40 PM
#9
Tech Fanatic
Another factor in this equation would also be drag brake. I have noticed that some of the shaft cars have a tendency to push entering a corner, and some belt drive cars have too much steering entering the corner. As a free drivetrain wants to keep spinning, the tires will not loose contact patch with the surface, thus giving more traction(to make the car push). With a drivetrain that is less free, the tires want to stop before the chassis's enitra slows down, thus giving less traction(to make the car more touchey/oversteer)
10-28-2003, 05:29 PM
#10
Tech Elite
Originally posted by Bubblestc3
Another factor in this equation would also be drag brake. I have noticed that some of the shaft cars have a tendency to push entering a corner, and some belt drive cars have too much steering entering the corner. As a free drivetrain wants to keep spinning, the tires will not loose contact patch with the surface, thus giving more traction(to make the car push). With a drivetrain that is less free, the tires want to stop before the chassis's enitra slows down, thus giving less traction(to make the car more touchey/oversteer)
Another factor in this equation would also be drag brake. I have noticed that some of the shaft cars have a tendency to push entering a corner, and some belt drive cars have too much steering entering the corner. As a free drivetrain wants to keep spinning, the tires will not loose contact patch with the surface, thus giving more traction(to make the car push). With a drivetrain that is less free, the tires want to stop before the chassis's enitra slows down, thus giving less traction(to make the car more touchey/oversteer)
The term "Loose" (oversteer) generally refers to the Rear of the Car having LESS grip. Sometimes the term can also be used to describe less grip at both ends.
Having a free spinning drivetrain with low drag is always a benefit. This is why many R/C manufacturers are moving over to shaft drive designs.
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