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Thread: Budget Build - How bad is brushed?

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Old 07-13-2018, 08:24 AM   #1
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Join Date: Dec 2015
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Default Budget Build - How bad is brushed?

I'm looking to pick up a Rock Rey kit and make a budget build for my son's 6th birthday. He's had an Everest 10 for a few years, and he is wanting to go faster (I've already upgraded the stock motor with a 35T, which is about perfect for that platform as a crawler). We lucked into a hand-me-down Traxxas Stampede, which feeds his need for speed, but the Stampede is useless when we go trailing.

Is it a total crime to set up the Rock Rey as a brushed system? I was thinking about putting in a 21T brushed motor to keep the cost just a little over $300. Do you think the RR would make for a (somewhat) capable crawler for trailing, but also allow for some higher-speed bashing with this setup?

Any thoughts / suggestions / ideas are welcome... thanks!
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Old 07-13-2018, 08:41 AM   #2
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Join Date: May 2017
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Default Re: Budget Build - How bad is brushed?

You can always change that brushed out at a later date for a decent sensored brushless system and get everything your heart desires. Or go decent brushless now and save yourself money in the long term. I know which way I'd go!

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Old 07-13-2018, 08:52 AM   #3
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Join Date: Apr 2017
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Default Re: Budget Build - How bad is brushed?

To go brushed you'll need a new pinion because the Rey pinion has a 5mm hole (too big). I think you'll want to go brushless eventually because big power and speed are the best things about a Rock Rey in my opinion.
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Old 07-13-2018, 11:54 AM   #4
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Default Re: Budget Build - How bad is brushed?

Thanks for the feedback. I'm really torn on this one! I know he'd really like going super-fast and doing big jumps... but I also want to keep in in the crawling / trailing world because that's a big part of our family activities... gonna do a bit more research - thank you!
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Old 07-13-2018, 12:55 PM   #5
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Default Re: Budget Build - How bad is brushed?

As Cads mentioned, a good 550 sensored brushless system would get you close to having the best of both worlds (low speed control + high speed capability), however, that would blow your budget.

Either way, the Rey kit is a fantastic value right now at $250 so it wouldn't hurt to put it on order when you decide on the rest
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Old 07-14-2018, 10:00 AM   #6
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Default Re: Budget Build - How bad is brushed?

I have been debating the same thing. I bought an rtr 6 weeks ago, and I love taking it on trails and hiking with it, more than bashing or really going fast. We just bought the kit for my son's 13th birthday so that we will have 2, and I ended up swapping all the rtr electronics into his kit. He is more of a speed demon than I am, and he loves it. I would love to get a high dollar sensored s brushless setup, but for trailing, I was thinking of a traxxas 775 motor, I believe has a 5mm shaft, and brushed waterproof esc's are cheap. Let us know what you decide to do with it, and how it performs.

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Old 07-14-2018, 12:41 PM   #7
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Default Re: Budget Build - How bad is brushed?

I have been wondering about doing the same as well,

I just picked up the Rock Rey from Horizon, during the free shipping sale. $250 USD plus customs/taxes through Borderfree came to $388.00 Canadian - a damn good deal compared to $500-$600 Canadian I would pay locally.

I don't mind ordering a half decent brushless system, something mid range, but I would like to use it next weekend, and nothing ships that quickly reliably due to customs, even if I pay $50+ for express shipping.

I have multiple extra brushed ESCs, and can pick up a 550 Titan 12 or 21 turn dirt cheap locally and have the kit assembled this coming week.

My question is, will it have any speed, to it, or will I be cruising around at crawler speed.
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Old 07-15-2018, 12:37 AM   #8
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Join Date: Mar 2016
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Default Re: Budget Build - How bad is brushed?

IMO a 21t 550 can is just enough to make a Wraith fun on really rocky stuff. It's nearly free to try it out, so why not?
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Old 07-15-2018, 06:01 PM   #9
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Default Re: Budget Build - How bad is brushed?

Wanted to let you guys know that I tried a cheap 3100kv motor off amazon, and paired it to a sc700bl esc I had laying around from an associated sc10 rtr. I couldn't believe how smooth it was, almost zero cogging. I have very little experience with crawlers, but this thing performed great. The downside was it's only a 70 amp esc, and after 1 battery, you could fry an egg on the speed control. I tried the same cheap motor on the stock esc, and cogging was almost the same as the stock motor, so most if not all the stock cogging problems are coming from the stock esc.

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Old Yesterday, 10:08 AM   #10
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Join Date: Aug 2017
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Default Re: Budget Build - How bad is brushed?

A cheap brushless setup may be something that you want to consider. I've got an ebay 3660/esc combo in my Desert Fox. I think I paid about $40 for it. The ESC sucks, but the motor is solid. For $40, it'll get you up and running, and aside from too much cogging, it works great. I think the Rock Rey is geared lower than the Desert Fox, so you should get less cogging than I do, and then down the road you can just buy a better ESC and you'll be in real good shape.
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