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#1
02-06-2012
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SC10 gearing
Hi guys,
I got a castle sidewinder sct and 3800kv motor for my SC10 and am having trouble with the gearing. The gear chart calls for a 14-18t pinion on an 87t spur, so I naturaly went for a 16t, all the guys at the club reckon this was way to small and I was lacking top speed massively, temps are about 74-76 Fahrenheit with this set up, What gearing do you recommend? Any help is appreciated. 
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#2
22-06-2012
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I've been struggling to get the temperatures down on my 4000kv motor but I'm using 32dp gears. I started on 15t but i've used a 14t and a 17t as well. It was really hot on the 17t.
If you are using 48dp then I'd guess a 14t is to small. I am going to test the 14t again after experimenting with the 17t this evening and nearly burning my fingers! Unfortunately I stuck the whole car in a puddle and it's been running slow since then. I'm hoping I haven't fried it. The ESC and motor are in a Tupperware box with a silica pack the size of a crisp packet. Fingers crossed.
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#3
22-06-2012
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easiest way is to find out is to start at the highest of the chart and run for 5 mins then check temps and go from there, in my blitz i run 83/24
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#4
22-06-2012
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I, unfortunately, only have 3 pinions. They are 32dp with a 5mm bore and about 6 pounds each so I want to get it right with out wasting money on expensive pinions.
I don't think 48dp spurs would like the power of a 4 pole motor. What turn/kv motor do you have in your Blitz?
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#5
22-06-2012
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gm 10.5 and with your bigger 550 motor you always run smaller pinions, a 24 would melt your chassis
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#6
22-06-2012
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Quote:
are you running timing advance/boost? what size is the spur?
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#7
22-06-2012
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It's an SC10 4x4. I have no timing or boost on the ESC and it's the 60t 32dp spur that comes with the truck.
Using a Tenshock SC411 motor and 120a hobbywing speedo which doesn't seem to struggle in the slightest.
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#8
24-06-2012
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gearing
Best thing to do would be to borrow pinions where possible to get your gearing right 1st then buy. But different circuits require different gearing so you will need a few pinions minimum. I would recommend investing in a device to read your motor temperature. Gear for around 130 deg F MAX after 5 minutes running.
Last edited by CrashBangWallop; 24-06-2012 at 09:19 PM. Reason: additional text
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#9
25-06-2012
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I don't race it unfortunately, I'm a LONG way from a track that races 4x4 SC10's. I put it round our buggy track for fun against my 2wd truck with friends.
I've put the 14t on with a heat sink and fan, I'll keep an eye on temperatures, someone in the club has a gauge so I'll see if he can test it. Cheers
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Linear Mode
