Motor winds

[John Paul]

I've been considering running modified on my touring car.

I was originally going to buy a 12 turn V2 motor. However, now the motor turn limit has been lifted my choice of motor has increased considerably. :eek:

Could somebody please explain what difference a 12 turn will have over say a 10 turn.

Also what difference, for example, 12 x 1 will have over a 12 x 2.

I understand the physical difference in the construction of a 10 x 1 to a 8 x 2 but I need some guidance to the change in performance between the winds.

It is my understanding that less winds = more revs and less torque
x1 will have more revs and less torque than a x2
Is this correct :confused:

I'm just trying to make an educated purchase of a new motor! :D

[FTR]

You were almost there.

Less winds will have less torque and more RPM but x1 will have more torque and less RPM than a x2 or a x3.

Regards
Paul

[Chrislong]

Post #2 = spot on.

But you also have to consider the motor characteristics depending on the make and model you choose, for example, BRM motors are known to be torquey so need to have a tall gearing. Each motor has its own characteristic depending on the size of comm, number of magnets, orientation of brush and then there is the V-revolution type motor too.

[John Paul]

Thanks for that. :D

My home track is fairly technical with one straight of about 100 feet long.

So based on the above info I'd be better off with a motor with more torque rather than more rev.s.

Thinking of maybe a 10 x 1 V2 type motor.

One more question though :confused: : -

Why would you use say a 10 x 1 as opposed to a 10 x 2. If you are after more revs why not just go for a lower turn motor? Somebody mentioned it has to do with the powerband of the motor???

[Berger]

A double or triple will be slightly easier to drive as the power delivery will be a bit easier so if you have a lead thumb or the tracks slippy or wet a single may not be the way to go. Until recently the BRCA had modified limited to 12 turns anyway, so a lower wind motor wasnt an option for more rpm.

[Remo]

single winds has the most punch and so some may brefer the x2 or x3 etc which are smoother to drive and tends to rev more. I use a 12x3 and find it very easy to control (well mostly) smoothly...

[Genem]

Double winds are good for off-road and semi-slippery semi-technical touring tracks.
Triple winds are good for large flowing tracks.
Single winds are good for small tight technical tracks. Single winds are too torquey for off-road 2wd, but for 4wd, it is not uncommon.

[scott_davis]

double winds are good for off-road and semi-slippery semi-technical touring tracks.
triple winds are good for large flowing tracks.
single winds are good for small tight technical tracks. Single winds are too torquey for off-road.


I dont agree that single winds are too torquey for off-road... I know alot of people use them in 4WD for the torque factor.

I even know of someone using a 12*1 BRM...in a 4WD Off road.. total torque monster :D

[Chrislong]

Depending on the car, track and conditions, you may be able to make a car go faster with a motor with more winds.

I run a 12x1 in my Academy SB Sport (and no, a single isn't too torquey for off road!!!! :mad: ), and because it is a BRM and it has good duration I can gear it high and so I am utilising the torque to give me the speed - and it is as fast as a good 10turn in a 4wd, with very quick acceleration.

Then in my 2wd RC10B4 I tend to run a 10x2 geared normally and the car flies, if I have a long straight and grip at tracks like Southport I will run an 8x2.

I know in Italy for the Euro's, some people went for low quad wind motors such as a 13x4 with timing retarded to make the car more driveable on the loose dirt surface.

[rhythm]

What about for a really slippery touring car track?

So I could use a double but would a triple be even smoother?

Will the triple be faster or slower than the double?

Thanks