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Spool vs. Regular Diff vs. One way?

Spool vs. Regular Diff vs. One way?

Old 08-30-2007, 01:36 AM
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Originally Posted by PeteB View Post
No. Ok gather round people...

A "diff" is a differential, turn one wheel by hand the other wheel turns the other way.

A "spool" is a solid front axle, turn one wheel and the other turns with it. There is no diff functionality

A "one way" allows each wheel can spin freely forwards only. it is kinda like a spool when the power is on, because both wheels turn at the same rate, but off power can turn at different rates.

diff = brakes
spool = brakes
oneway = no brakes (or very little at best)

as for what to use where? that's personal choice, and alot of it is up to your driving style, a few pointers... if you are running a fast motor, you will need brakes, go for a diff or a spool, if you are running a slow motor and dont use brakes much anyway go for a oneway. the main reason is that with a diff on a high grip surface, and a low power motor (silver can etc) you will shave off lots of speed going round corners, this is especially noticeable when going from full speed down the stright into a sweeper, and there is someone right behind you. its like they get a huge burst of power. really its just you slowing down, even though you are still on full throttle...

hope this is useful though

Pete
Just to add to the above.
oneway is preferred for more flowing, open, high traction tracks with no tight corners and would give good steering and speed on corner entry and exit.

Spool is used for slightly more technical tracks with a few tight corners and low/med grip.Would suite tracks with slow corner entries and give you more steering and performance out of these corners.

Diff would be and could be used for both high and low traction surfaces with a softer diff on a low traction track preferred.
benefits are good corner entry and a bit of understeer on exit.
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