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Discussion Starter · #1 ·
I'm thinking about purchasing a BMW 320i to be modified for saloon class racing and would be limited to Slot.it or NSR motors of about 30k rpm. Choice of car is between Scalextric and SCX. With the Scaley, the motor swap would be straightforward. Is there any way to use the Mabuchi-type motor in the SCX car ? Which would be the better alternative, given the Scaley's sidewinder configuration and the SCX's inline one ?
Steve
 

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Gary Skipp
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No don't do that, the pro pod is entirely different


Slot.it make an adapter to fit the V12 (mabuchi) style motors to SCX cars, just buy one of those! Easy 8) There only other thing you'll need to do is space the rear axel to achieve a good gear mesh, because the motor shaft on a Slot.it or NSR motor won't be long enough to align the gear mesh automatically.
 

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Personally I would use a scalextric version.
I have one standard(ish) and its a great car with a little tweaking.

I lowered the body by cutting down the posts, dremelled out a bit of the interior tray, fitted decent tyres to the rear and varnished the front tyres and added the spring guide which looks the same but is deeper and its a very good car to race.
By lowering the body it looks better as the silly gap above the wheels is gone and it helps with the handling

Give it an nsr shark and you should have a fun fast car!
 

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slotcarscrapyard is spot on. the only one thing i,d alter is to take the spring off the deeper guide and cut the post off 1mm lower than it protrudes. drill a small hole in the centre down to the depth of the blade and screw a 2mm flanged panel screw in, to stop any blade slop and rock. you might have to pack the guide underneath to achieve full depth when its sitting on the front wheels. john
 

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Alexis Gaitanis
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I'd choose the SCX but replace the motor with the 41H.Then i'd run the motor in and gear it 9/24-25 to take advantge of the torque these motors provide.
If it has to be a Slot.it/NSR motor then use Team Slot adaptor ts7-ts11 to fit a long can motor,but then again the shaft wont be long enough as mentioned in a previous post also.
Team Slot
 

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I have a heavily modified SCX Corvette that I worked on for a couple of years. A Slot-it HRS front end, motor kit and wood guide, a Scaleauto 28x motor, Ninco wires and rims, TSRF independent front axle and SCC rear tires has been added. Lots of modifying, work, and testing has gone into this car and it has paid off --- very quick and fast. I am also using a Slot-it motor adapter kit.
Aloha,
Rick
 

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Discussion Starter · #8 ·
Thanks for all the input guys. I particularly like slotcarscrapyard's idea of lowering the body by cutting the mounting posts. Haven't yet made up my mind though.
 

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There's a heavy handed way to fit the Mab-S style cans in regard to drive shaft being to short... Hammer it out a bit.
Problem is, if IIRC, the Slot-It converter is end-bell towards drive axle. So you'll have the support the anchor(?) to not smash the commuter(?).

But looking at the SP08 converter it actually look as if it's end-bell forward and can-end to rear. Which would make it a lot easier to tap it out to fit into the standard guiding flange of the crown gear.

No, I haven't done this particular mod. I've done it with Mabuchi HO motors, ie Tomy Turbo's, to make them direct drive. thou.
 

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Nobby Berkshire
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That kind of silly rpm means nothing. 30 000rpm is a joke! Unless you have 30 foot straight sections you'll find very little difference. If you are up to wasting a bundle of cash then just buy a higher performance SCX motor. Take some track timings. Then blow a load of cash on your NSR/whatever upgrade and a new axlegear - that you'll need - and new hubs - that you'll have to rip off - and tyres. Then ask yourself if it's all worth it.
 

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You did not specify if all SlotIt or NSR motors were allowed, I mean, are you limited to short cans or are long cans allowed ?

Are you looking to a light, fast and responsive car, or to a heavy, torquey and secure car ?

Whatever you are looking for, with an SCX car, you need:

- small can: a Slot-it "Rx adaptor" like this :


- long can : a MSC adaptor like this :


There is only one Slot It motor with long shaft specially designed for SCX replacement, it's the V12/2 29K. It's a very fast motor, but with little torque and brakes.

As previously said, the other solutions are:
- to use spacers to set a good pinion/crown alignment
- or to use a Cartrix long pinion

The images I took for example are of French retailers but I'm sure you can find these parts worldwide.

On a sedan BMW, I would personnaly use a long can to have more weight near the track and lower the COG. A King 21 or 23 would suffice for all tracks with 9:27 demultiplication. My two cents.
 

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There is another alternative motor which goes in scx no problem, the ninco raider. Its got a long enough shaft to reach, loads of torque but is only 19k.
I've got one in an scx escort and to be honest the scx 4H motor is better round the track as the raider powered car just runs out of revs unless you have a short straight. You could get round this by altering the gearing though.

I still think the scaley beemer is the better bet as its easier to lower the body, being sidewinder, you only have to trim the rear parcel shelf section of the interior.
The long can inline scx beemer will need the interior cutting and trimming to get the body sitting lower. Also the scx version is heavier to start with.
 

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Always more than one way to ... you know what.
I've only done two SCX conversions to accept different motors, a.e. NSR King long can in one and NSR Shark in the other. In both cases, I gutted the SCX chassis and pretended to scratch-build. Tried Slot.it motor mounting module first, but found it worse than scratch-building my own metal mounts and using screws into tapped holes in the motor can to hold the motor in place without trapping it between two flexing plastic bulkheads -ugh!
Oh, and I did away with the SCX power rails - replaced the slot guide with the wired variety. Never did like those wireless, friction contact contrivances.
 

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QUOTE There only other thing you'll need to do is space the rear axel to achieve a good gear mesh, because the motor shaft on a Slot.it or NSR motor won't be long enough to align the gear mesh automatically.

Here's me late to the party AGAIN.

The magic number is 10mm from the end of the shaft to the flat end case of the motor



Sorry the picture is off axis a little and I don't have an NSR motor.

Top motor the special Slot.it SCX conversion motor (9.95mm)
Middle is obviously the OEM SCX (10.2mm)
The bottom is an Orange can motor from a Slot.it Nissan R390 (10.12mm)

All three fit the bill

Also measured but not shown

Lil Ripper FK-130 is also 10mm
ScaleAuto SC-0020 FC-130 (10.12)

Scaleauto FK-180 long can 8.5mm

So it is true that Long can motors have shorter shafts it would appear that some aftermarket FC-130 motors do have long enough shafts.
 
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