SlotForum banner


3884 Views 20 Replies 8 Participants Last post by  Schackel
I think motors are at least as essential, if not even more, in 43rd scale than chassis because motors determine the possible minimum dimensions of 43rd scale slotcars and the drive principle - inline / anglewinder / sidewinder .

Until now one primarily sees closed cars - from saloons to Group C or GTP or whatsoever.

But there are lots of beautiful open cars - from Vintage via CanAm up to modern LMP´s. Their general drawback is the height. They all are rather low, especially the modern ones.
The actual popular motor sizes are either something like the GO! dimensions or the Mabuchi SH-030SA.
The GO! - size enables anglewinders and with a bit of tweaking even sidewinders - always assuming SCALE wheel diameters. But it is too high for real scale open cars.
The Mabuchi is low enough for such cars but too wide. It can only be used inline and at a rather big angle as anglewinder. But especially the moderrn spyders are quite low between the wheels. Well, a little compromise in this area of the body wouldn´t affect the overall appearance anywhere near the too big wheels on the LMP´s of a famous German Producer.

So wouldn´t it be a useful research action to find out ( or even to show ) what is available AND being used ?

My first attempt was the motor shown here on the right. Much smaller thatn the GO! on the left. Neos. Arm shaft 1 mm.
But : Its voltage range is between 5 volts and 12 volts on the data sheet, and in reality the motor starts running at 7 volts. The power is too low.
In my opinion it should be possible to get a usable motor from this basis. Probably a matter of winds / wire dia.
But how to find out ? Pre - finance some experimental changes with the producer ? They even wanted 40$ for the five samples...

Well, come on, what "tiny" motors do you have ?

See less See more
1 - 4 of 21 Posts
There are a couple motor options out there that many may not have thought of. I have a couple E-Flite Helicopter motors, but they are not the ultra small rotor motors, more of the main rotor motor, they are slightly smaller around then a GO!/RS motor but a little longer, proportioned like the D-slot motor, just smaller I am seriosly considering one of these for my proxy entry even though I have never run one before (all the chips on the table!

Another option many may not have considered is HO and N gauge train motors. Some of these are the same motors we already use, BUT there are some other High end motors from Japan, I have bought a few, but I have not had a chance to try'em out yet. There are even Brushless Model train motors, but they cost more by themselve then one D-slot car! Many might think these motors too slow and it's been a couple year since I researched them, but many turn pretty quick, the main reason some may think they are slow is because many times trains use worm gears with tons of gear reduction. The motor itself is actually turning pretty fast! One additional attraction to some of the small train motors is that some of them are already set up for shaft drive. so theoretically you could position the motor in front of the cockpit of an open car and the shaft could turn the rear mounted gear!

I have not had time to test these, I may not have time to finish my car(s) before the race date, but maybe you guys can chew on that for me!?
See less See more
The biggest problem I have had with finding alternative motor's is finding pinions to fit!
QUOTE (Schackel @ 11 Apr 2012, 22:38) <{POST_SNAPBACK}>Have a look at the HP of MASHIMA ( see my answers ). There are just the motors you talk about. Mainly used for trains, but all parameters good for slotcars. Only the retail price .....


O.K. I missed that link first time around, but even those are quite conventional, I have seen some that look more like Scalextric motors from the 60's, Open frames as well as a couple modern looking brushless motors, but in both cases they can be Pricey! Some of the hand wound Japaneese motors can cost $60 to $80. EACH!!!
Losi makes a small Brushless motor that might be able to fit in a slot car, 1/32 for sure, but maybe even 1/43; here again I want to say it's like $30 (?) and would probably require some advanced electronics to run properly.
See less See more
QUOTE (Lloyd.L @ 12 Apr 2012, 18:40) <{POST_SNAPBACK}>Although I have little knowledge of HO racing, I understand that there are some very hot open frame motors used for serious racing in that scale. Does anyone know more about them?

Regards, Lloyd

I have used HO car motors in a couple of scratchbuilds, my main issue (and I would like to stress that as much as I worried about it, it was a Non issue in the last race) was that they use a very small pinion and the shaft in most HO motors is small as well. This is fine for a small HO car, but my Heller Mini, even though it has the footprint of an HO car was probably twice as heavy with it's brass chassis. That car was not run too much, but I fear that if run very much at all, I would have trouble keeping pinions on it! We used to have problems breaking/losing pinions on our HO cars when I was a kid, with 1/43 it's going to be twice as bad!!
1 - 4 of 21 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.