ESC/Motor for crawler - RC-Monster Forums

George16 · 01.14.2009, 11:04 PM

Thanks Jerry. I told him how fortunate he is for having almost everything he wanted. As long as he's doing his house chores and keeps on getting good grades in school, I don't mind spending my money for his toys. Hey at least I can play with it too. In fact, my wife asked me if he really wanted a new truck or was it for me

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James, what would be the top speed with the 55T on 2S?

lincpimp · 01.15.2009, 12:35 AM

Well, my buds run 55t motors on 3s lipo, and with 2.2 tires and axial trannys geared 14/87 they get about 5mph out of them. I prefer a bit of wheel speed as I think it can be an asset when crawling. A 55t motor has a kv of about 1100, so the speed calc may be useful. On 2s figure 3.5mph with stock gearing on an ax10.

Maciolus · 01.15.2009, 01:17 AM

You can try outrunner around 1000kv, something similar to Crawlmaster by HH.

George16 · 01.15.2009, 03:56 AM

Quote:

Originally Posted by lincpimp

Well, my buds run 55t motors on 3s lipo, and with 2.2 tires and axial trannys geared 14/87 they get about 5mph out of them. I prefer a bit of wheel speed as I think it can be an asset when crawling. A 55t motor has a kv of about 1100, so the speed calc may be useful. On 2s figure 3.5mph with stock gearing on an ax10.

If that's the case, I'll just run it on 3S. I have a couple of Neuenergy 5000mah 3S batteries for the truck. Thanks.

lincpimp · 01.15.2009, 11:38 AM

Quote:

Originally Posted by George16

If that's the case, I'll just run it on 3S. I have a couple of Neuenergy 5000mah 3S batteries for the truck. Thanks.

The 55t motors definately perform well on 3s. With a 5000 pack you will get about 1.5 hrs of runtime, possibly more!

I use 2100mah lipos in my 2.2 comp rig and it does at least 35-45mins. And that is with a big outrunner. With the low gearing and speeds crawlers are setup for they barely draw anything.