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Diamond sanding drum


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#1 Upfront slot cars

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Posted 28 November 2017 - 10:18 PM

Does anyone know what the grit is on a diamond sanding drum for a Hudy?


Andrew Ford




#2 anarot

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Posted 29 November 2017 - 03:25 AM

Pretty sure they come in fine. medium, or coarse. But just had a look at their web site and only shows one. I got one when I brought mine and the standard one I would say is a medium if that helps. 


Trevor Neilson

#3 Pappy

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Posted 29 November 2017 - 08:27 AM

I'd call mine "medium" as well. I'm guessing about 100 grit.

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#4 dalek

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Posted 30 November 2017 - 10:03 AM

Recently I used a Hudy with a diamond drum. It left the tire noticeably smoother than the standard drum I have on my Hudy.
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#5 Bazzie

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Posted 01 December 2017 - 02:36 PM

After about 10 laps the tyres will be smooth anyway. I've put 60 grit paper on my ilpe truer, saves a lot of time and doesn't heat up the tyres by much. Too fine and you just smoke your tyres and have to advance real slow.

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#6 dalek

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Posted 02 December 2017 - 09:06 AM


Good points.
 
From my experience, my cars (flexi chassis) get faster as the tires get "run in" and become a little cone-shaped so it makes sense that starting with a smooth finish will only increase the number of laps it requires to get them there.
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#7 MSwiss

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Posted 02 December 2017 - 10:16 AM

After about 10 laps the tyres will be smooth anyway.

Very true for flat track racing with soft tires.

In the case of the OP, he frequently runs pretty hard Wonder rubber on fast King tracks, with Retro cars.

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#8 gotboostedvr6

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Posted 02 December 2017 - 11:10 AM

If you run faster when tires get cone shaped you could prob make changes to your setup and improve lap times and make your car more consistent. Try one or more; harder rubber on plastic hubs, a larger hub, lighter pans, body moved back, slightly narrow tires.

Switching to the new redfox guide non tapered guide will also help.
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#9 Bazzie

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Posted 02 December 2017 - 01:15 PM

Very true for flat track racing with soft tires.

In the case of the OP, he frequently runs pretty hard Wonder rubber on fast King tracks, with Retro cars.


Ah yes, true Mike.

I also make my tyres cone-shaped right from the start


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