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Old 03-18-2017, 01:40 AM   #12781
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I seem to remember a pic of an F104 with the battery fitted sideways. I cannot find it anymore. I would like to try it but I cann't figure out how. I am not bound by Tamiya parts. Please point me in the right direction!

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Old 03-18-2017, 05:52 AM   #12782
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Can anybody tell me who makes spur gears 48 pitch with 66 down to 60 teeth?
Only part I could find till now was associated/kimbrough 66t:
https://www.teamassociated.com/parts...r_66t_48pitch/
Actually I'm looking for 60t but anything smaller than 66t would be great!!!
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Old 03-18-2017, 05:58 AM   #12783
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For f1 I'm using the kawada tough spur... I believe they may go below 65t

Try rcmart
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Old 03-18-2017, 06:02 AM   #12784
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I think at 60tooth you will not be able to have enough material for the diff!

They can only get so small and have enough area for the bearing, diff balls, and accomodate the diff hubs.

Switch to 48p and you will easily find lower tooth counts, but your pinion choices will be limited then on the flip side.

- As for the above post, the Kawada Super Tough starts at 88T
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Old 03-18-2017, 08:18 AM   #12785
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Quote:
Originally Posted by jpx View Post
Can anybody tell me who makes spur gears 48 pitch with 66 down to 60 teeth?
Only part I could find till now was associated/kimbrough 66t:
https://www.teamassociated.com/parts...r_66t_48pitch/
Actually I'm looking for 60t but anything smaller than 66t would be great!!!
RW Racing go below 60T 48dp for pan car spurs
available here
Demon Power Products - Servicing Radio Control Cars Since 1978 - 01252 343132 down at bottom of the page
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Old 03-18-2017, 11:58 AM   #12786
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I bought this one:

https://hobbyking.com/nl_nl/robinson...pitch-60t.html

I used a Kimbrough as a template and drilled 3mm holes for 16 balls.







Easy!

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Old 03-18-2017, 12:17 PM   #12787
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Quote:
Originally Posted by Barry_Hughes View Post
RW Racing go below 60T 48dp for pan car spurs
available here
Demon Power Products - Servicing Radio Control Cars Since 1978 - 01252 343132 down at bottom of the page
Thanks man!
That's exactly what I was looking for! Great help!

Thanks also to all others for replying!
Smallest Kawada spur 48p I could find at rcmart was 65t.

I think I'll try to get some of the Demon spurs, so I won't have to drill
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Old 03-18-2017, 09:01 PM   #12788
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Robinson Racing makes machined 48 pitch spurs down to 49 teeth.
Robinson Racing Products - Products and Pricing - 48 pitch spur gears
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Old 03-18-2017, 10:48 PM   #12789
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Yes, I used those, see post 12786. They do'nt fit direct as the holes are not lining up with the friction plates. They are only mounting holes. The ones they sell with (only a few) ball holes go down to 72 only, lower table on the linked page.

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Old 03-19-2017, 01:07 AM   #12790
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Is there any benefit having less or more differential balls in the spur since some allow more than others
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Old 03-19-2017, 01:52 AM   #12791
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More balls runs smoother and requires less pressure to avoid slip. Kimbrough runs 16 balls.

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Old 03-19-2017, 07:06 AM   #12792
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Quote:
Originally Posted by HugoW View Post
More balls runs smoother and requires less pressure to avoid slip. Kimbrough runs 16 balls.

Hugo
I use Kimbrough 48p (69 ... 87t) - they all use 12 balls.
Maybe Kimbrogh 64p use 16 balls?
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Old 03-19-2017, 08:08 AM   #12793
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My Kimbrough 48p 70T and 73T both have 16 balls. You can see one in the pic I posted about drilling the 60T gear.

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Old 03-19-2017, 12:34 PM   #12794
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I was talking to one of the sponsors of the Newy onroad club a few months ago as I'm in the process of joining, he mentioned the 201s race alongside the rwds with some different spec rules. Apparently they do OK.

Best to contact your local track and ask. As it might be circuit and country specific.

Which car have you got? I love the Williams F201!
Thanks! After some more reading I've decided to upgrade my F103 as it seems like it will be quite a bit more competitive and fit class rules easier. Honestly I wasn't even planning to get that car operational again but with a few F104 parts it sounds like it keeps up with the best of them even all these years later. My F201 is the Williams kit but I painted it in the Jordan Benson/Hedges livery Going to get some proper rubber slicks for it and maybe find some spare parts and call it good. It'll be something different and fun to bring out on practice days. My other two kits are for offroad and are ready to go once my new electronics arrive
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Old 03-20-2017, 04:14 AM   #12795
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I am running an F104 (narrow 180mm) with regulated Ride wheels. I only run a very fast low grip tarmac track (34/60 gearing). I can make the car wide like the F103 (200mm) using F103 front parts and some diy bits on the rear axle. Would making wide help? I am looking for grip everywhere...

Cheers,

Hugo
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