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Thread: 4S and low gearing to get good crawling and speed?

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Old 11-10-2019, 12:51 AM   #21
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Default Re: 4S and low gearing to get good crawling and speed?

Right on, message received. I’ll put a Quicrun 880 in one of the rigs and report back. It’s ordered now and will get paired with a cheapie GoldBat 2200Mah 4S that should come in about the same time. If these don’t jive together, there’s the BRXL...Should have some impressions posted up by the end of the week. Thanks for hitting me back on this.
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Old 11-10-2019, 01:30 AM   #22
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Default Re: 4S and low gearing to get good crawling and speed?

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Originally Posted by elRayRay View Post
I'm going 4s in my 1.9 Class 3ish custom build. I'll be using a BR-XL and a CM Pro 550 12T. Geared for crawling...probably around 8-10 mph top speed.
That sounds like stock gearing. My 4s CM 10t goes 5mph.

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Old 11-10-2019, 01:32 AM   #23
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Default Re: 4S and low gearing to get good crawling and speed?

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Originally Posted by LincolnofDeath View Post
Right on, message received. I’ll put a Quicrun 880 in one of the rigs and report back. It’s ordered now and will get paired with a cheapie GoldBat 2200Mah 4S that should come in about the same time. If these don’t jive together, there’s the BRXL...Should have some impressions posted up by the end of the week. Thanks for hitting me back on this.
I Would love to know if this works. Nobody ever seems to report back though. Hopefully it's not because of an explosion...

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Old 11-10-2019, 09:58 AM   #24
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Default Re: 4S and low gearing to get good crawling and speed?

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Originally Posted by Voodoobrew View Post
I Would love to know if this works. Nobody ever seems to report back though. Hopefully it's not because of an explosion...

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Right? None of my crawler drivetrains are upgraded and battery fitment..., well I’ll get back to y’all as it evolves. If anyone with a WP880 WP 880 Quicrun finds this post in a search and wants to PM me in the next week I’ll take an steering you can send me.
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Old 11-10-2019, 07:43 PM   #25
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Default Re: 4S and low gearing to get good crawling and speed?

How do you get to 100:1 reduction? Not saying you're way is bad, but for myself there are no rocks here it's just woods trails and sand. I do have 2 HH revolver motors and I have noticed they like lower gearing to start up. They are powerful motors that just chug along once they are moving.
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Old 11-10-2019, 08:56 PM   #26
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Default Re: 4S and low gearing to get good crawling and speed?

96t spur and 9t pinion gets you to 104:1 reduction on stock ar44 gears.

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Old 11-11-2019, 02:11 AM   #27
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Default Re: 4S and low gearing to get good crawling and speed?

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Originally Posted by TheLetterJ View Post
I went with dual 880's (and snipped off a set of motor leads from each, 1 motor per esc) on my MOA build specifically so I could run 4s. Other than the non-selectable bec voltage (which is a solid 4a/6v), they did everything the 1080's did, and they're cheaper to boot (I caught a sale and got them for $28 each.) Without the fan, and with the heatsink removed they're actually smaller/lighter than the 1080 is too. No complaints, and I'll probably go with the 880 again the next time I need a brushed esc. I ran an 860 in few cars with a large variety of motors previously just so I could cheaply run 4s, and the 880 is MUCH smoother. A 550 brushed motor on 4s never left me wanting for power in a crawler, where occasionally 3s wouldn't have cut the mustard for me. I think less people would run brushless in their crawlers if they'd give brushed/4s a try. It's cheap, smooth, and pretty powerful. A Crawlmaster Sport 12t 550 and WP880 on 4s would be a heck of a good budget all 'rounder.
this guy did it with the 880...
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