8 replies to this topic

[Don Wedding]

Has anybody used a Hong Kong Johnson 12 volt DC motor in a slot car . What was the performance and specs on this motor . Is it a good motor ?

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[Isaac S.]

haven't used one but is pretty much just a 36D from what I know. 

[Alchemist]

Hi Don,

 

I don't readily see a number on the can - is there one?

 

I wanted to do a search - or perhaps would you have a part number for it?

 

Hook it up to a power supply and give it a listen/feel on how it ramps up the rpm - that should give you an idea on how it might run.

 

Just a suggestion.

 

Thanks.

 

Ernie

[Alchemist]

Hi Don,

 

I found the motor on ebay and the photos are same as you display in your post.

 

Here are the specs:

 

Johnson Electric 6 V DC Electric Motor - 3500 RPM - 2 mm Diameter Shaft

• Electric motor manufactured by Johnson Electric
• Operates on 6 VDC nominal
• No load speed: 3,500 RPM
• No load current: 60 mA
• Stall current: 470 mA
• Can be operated in either direction, simply reverse power supply polarity
• Shaft dimensions: 9.0 mm Long x 2.0 mm Diameter
• Dimensions (not including shaft): 30 mm Long x 18.2 mm High x 23.5 mm Wide
• Two threaded mounting holes on a 16 mm diameter
• Solder terminals for power connection
• Weight: 1.2 oz. (34 g)

 

Perhaps this will give you an idea on how it would work in a chassis, but the real test would be to put the motor in a chassis and test it.

 

Good luck.

 

Ernie

[mreibman]

I tried some motors, I believe they were johnson, of 2 different types.... although they sounded good, and looked decent, the minute I got them on the track, I knew my money was not well spent. They ran, but were SSSSSLLLLLLOOOOOOWWWWWWW.

 

I ended up opening one up (not made to be opened) advanced the timing on the arm, put some holes in the can for cooking, and did a few other tweaks.... Improved, but not enough to warrant the effort.

 

That's not to say you can't find one that works as a slot car motor - I have heard of drag guys using "foam blaster" or "nerf gun" motors, but for sure, your mileage may vary.

 

Johnson has been around a long time. When I got my first slot car and started racing in the 80's, it was a womp with a parma 16d, but in our upgraded racing class, you had the option of using the parma or the johnson 222 motor.... Johnson 222's were 16d size, endbell drive, and worked REALLY well compared to the parmas of the day. So do not lose all hope... but be wary.

[Gene/ZR1]

#30252 motor 16d-12volt

REB.&10tooth .078 pinion

only $5.00

see ejs catalog for leed wir

 

[Don Wedding]

Thanks guys, You all are a wealth of knowledge and experience. I knew you would come up with the answer. Will try out in a chassis this week.

[MSwiss]

3,500 RPM?

Even at 6V, that doesn't sound anywhere fast enough for slot racing.

[Alchemist]

 

3,500 RPM?

Even at 6V, that doesn't sound anywhere fast enough for slot racing.

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Good enough for "toddlers" slot cars perhaps!    hahaha!

 

Ernie