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I remember seeing modified motors that were single, double, triple, quad windings but I never knew what that meant or what the advantages of each type were. I always knew that a lower number was more power and rpm but where did the double, triple thing come into play in performance. Let's say we have 2 motors, a 12-1 vs a 12-2. Which is faster and why?

Another question I have is in regards to brushes. I was always a stock class person as a kid mostly due to a lawn mowing budget. I had many different motors and eventually settled on the Trinity stock as my personal favorite. I used to run some Trinity brushes that advanced the timing 6 degrees. My memory is fading and I can't remember if I noticed a difference or not. I was a kid after all. Does anyone remember if these brushes made a noticable difference?

Single, double, triple, quad ... means how many wires are in parallel at the armature.
This means a 15T single has 15 turns of one wire, a 15T double is using 15 turns with two wires wound at the same time.
Of course these two wires are a smaller diameter each but overall it may be the same amount of copper.
The problem just is you could use wires with different thickness for winding an armature and the result will be different then.
So you can´t compare any 15T single with any 15T double or triple even if it´s the same brand.

Beside the other factors as type of brush, spring tension, strength of magnet and can, timing advance and airgap you also have to consider type of car and track so you never could say this motor is better than the other one without knowing these.

Using a timed brush means more RPM, less torque and more heat.

But, a 10x1 will have more "ommpf" than a 10X3 due to resistance of the wires- and so forth. The neatest ones that I have are a 20X1 and an 11X6

From memory a 10 x single has more torque then say a 10 x triple. I run an 8x5 in my modified Cougar and the motor is fast but delivers a smoother current than what a single would.

J.M. wrote:From memory a 10 x single has more torque then say a 10 x triple. I run an 8x5 in my modified Cougar and the motor is fast but delivers a smoother current than what a single would.

and the split patterns like an H-V with a double and triple winds calm the motor down even more so the bottom end of the motor is softer

I find the 'softer' type better for my 2WD cars on the loose stuff (dirt) while I enjoy the 'torque' type in my 4WD racers.

Now days with brushless, you just dial in what you want. Crazy!

you could only fit so much total wire around a stack so
single - one big fatter wire more torque
double - medium strands of wire slightly less punch but a bit more top end
triple - thinner wire yet starting to lose some bottom end but has noticeably more top end
quad - really soft off the line but sure does wind up good, call it zingy
even the way they were wound as far as wires overlapping and such affected the power, race prep was the best imo

as for the brushes
softer material had more punch
harder wound up better
by cutting the leading edge you increased the timing (ie "cut brushes")
you could cut them horizontaly as well - more punch
the variations were endless, I still have a drawer full of various brushes

and you never went to a spec race without a giant pair of vise grips to squeeze cans

ASC6000 wrote:
and you never went to a spec race without a giant pair of vise grips to squeeze cans

And a slave pinion, slip joint pliers and a L hex to "advance" the timing-

buncha friggin' cheaters around here........

Oh, I only did that to Mod motors..........................why is there another way to adjust the timing?