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Thread: How to get a 10.2 to go fast.

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Old 07-24-2020, 10:38 PM   #1
Quarry Creeper
 
Join Date: Dec 2019
Location: California
Posts: 375
Default How to get a 10.2 to go fast.

How do I get the 10.2 to go decently fast, around 15 mph brushed? I'm trying to make a Prerunner build out of of a 10.2 raw builders kit, but the stock transmission just spins too fast with a large pinion for driving to be comfortable and not sound like the transmissions going to explode any second.

I've been thinking of installing a SSD 2 speed conversion, but from asking, a person said that it dosen't make too much of a difference, but I'm not sure. Mabye I can do a transmission swap but what transmission do I put in there? I've been thinking of a Yeti tranny but don't know how to mount it.

A bit of help?
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Old 07-25-2020, 05:57 AM   #2
Pebble Pounder
 
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Location: East coast Canada
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Default Re: How to get a 10.2 to go fast.

If you want it to go fast, the tranny will have to turn up, have you greased the gears inside?

Other than playing with gearing of putting a faster motor in it ( low speed crawling will suffer some ) a larger tire will also help gain a bit of speed.
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Old 07-25-2020, 06:16 AM   #3
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Default Re: How to get a 10.2 to go fast.

Switching from the factory set of 30t/8t ring & pinion for a 27t/8t set is right around a 10% increase. FWIW I run a 5700k castle in mine and run it really hard, still going strong (for now anyway).
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Old 07-26-2020, 01:26 AM   #4
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Default Re: How to get a 10.2 to go fast.

I don't need low speed as much, but a bit would be nice. I'll be doing a lot more meduim speed runs, as this is almost more of a short course type build than a crawler, if you know what I mean. I would like to fit a TRX4 transmission on there, but I'm not sure how that would fare.
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Old 07-26-2020, 07:16 AM   #5
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Join Date: Oct 2010
Location: Caldwell ID.
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Default Re: How to get a 10.2 to go fast.

12-15mph is fairly easy. Gear up on your pinion to a 15-16t, and throw a 4000kv or so brushless motor in the rig on 3s, maybe 4s.

Mine is setup with a 2speed rc4wd transmission 10/60 pinion pinion/spur, 3000kv brushless, and tops out at about half the speed as my nephews stock brushed Slash in high gear. so 12ish mph.
The handling at that speed is not good lol, but is manageable if you are careful.... See below.


Last edited by lonleycreeper; 07-26-2020 at 07:21 AM.
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