RCCrawler Forums

MenashaPede · 02-12-2009, 10:41 PM

I plan to get into rock crawling soon.
I'm no newbie to R/C, but have never pulled the trigger on a rock crawler yet.
I plan on waiting for the Losi to come out.
My first question is what to use for a motor, being that it is worm drive, and lower geared than most. Would a Velineon 3500 be okay, or do we want something with more torque, and less speed yet?
I assume, being worm driven, you won't need a drag brake, which allows more choices for an ESC.
I also don't quite comprehend the whole dig thing.
I understand that it allows tighter steering, but not how to use it, or exactly how it works on the Losi.
I am also looking for suggestions for TX/RX. I assume any 3 channel would work, but what would work well on a budget?
I have been doing some searches here.........quite a bit of info to be had.
Still.....I have to ask.
Thanks in advance

JeremyH · 02-13-2009, 07:02 AM

You will probably want something with more torque. That is a horsepower motor that works well in bashers, but probably wont in the Losi. Also, your assumption is correct, you likely wont need a drag brake, however, the Castle Creations Sidewinder (which is my ESC of choice) has a programmable drag brake (if you purchase the Castle Link). As for the radio system, the DX3R is a good choice.

justadork · 02-13-2009, 09:59 AM

As for motors there are really in my oppinion two schools of thought.

Lots of torque and low RPM (similar to a diesel American truck) don't have to gear down as much.

or Lots of RPM (similar to a 4cyl gas Toyota) gear down way down.

Since we are dealing with itty bitty toys, I prefer the latter, it helps smooth out the throttle response.

Greatscott · 02-13-2009, 10:36 AM

The recommended motor from Losi is a 17.5T, a high-torque, high-turn crawler motor would make this thing painfully slow. It developes its torque through the speed of the motor, not by the low-end grunt of the motor itself. No drag break is required, the only way the worm gears will turn is if there is power going to the drive shafts.

Greatscott · 02-14-2009, 02:42 PM

:-(:-(:-(
The truck has been pushed back to May....

-x

dirtman · 02-15-2009, 02:28 PM

How about something like a Holmes 35-45T (P-94) motor or maybe a puller motor. I am also going to buy one of the Losi's (in flippin May) and am having the same problem with the motor choices. I want a fair amount a wheel speed but probably not as much as a 7T cobalt puller.

02-12-2009, 10:41 PM	#1
MenashaPede Newbie Join Date: Feb 2009 Location: Menasha Posts: 33	Crawler q's...Losi crawler I plan to get into rock crawling soon. I'm no newbie to R/C, but have never pulled the trigger on a rock crawler yet. I plan on waiting for the Losi to come out. My first question is what to use for a motor, being that it is worm drive, and lower geared than most. Would a Velineon 3500 be okay, or do we want something with more torque, and less speed yet? I assume, being worm driven, you won't need a drag brake, which allows more choices for an ESC. I also don't quite comprehend the whole dig thing. I understand that it allows tighter steering, but not how to use it, or exactly how it works on the Losi. I am also looking for suggestions for TX/RX. I assume any 3 channel would work, but what would work well on a budget? I have been doing some searches here.........quite a bit of info to be had. Still.....I have to ask. Thanks in advance

02-13-2009, 07:02 AM	#2
JeremyH I wanna be Dave Join Date: Sep 2005 Location: Houston, TX Posts: 16,952	You will probably want something with more torque. That is a horsepower motor that works well in bashers, but probably wont in the Losi. Also, your assumption is correct, you likely wont need a drag brake, however, the Castle Creations Sidewinder (which is my ESC of choice) has a programmable drag brake (if you purchase the Castle Link). As for the radio system, the DX3R is a good choice.

02-13-2009, 09:59 AM	#3
justadork Pebble Pounder Join Date: May 2006 Location: Anaheim Posts: 139	As for motors there are really in my oppinion two schools of thought. Lots of torque and low RPM (similar to a diesel American truck) don't have to gear down as much. or Lots of RPM (similar to a 4cyl gas Toyota) gear down way down. Since we are dealing with itty bitty toys, I prefer the latter, it helps smooth out the throttle response.

02-13-2009, 10:36 AM	#4
Greatscott I wanna be Dave Join Date: Jul 2005 Location: North Idaho Posts: 3,648	The recommended motor from Losi is a 17.5T, a high-torque, high-turn crawler motor would make this thing painfully slow. It developes its torque through the speed of the motor, not by the low-end grunt of the motor itself. No drag break is required, the only way the worm gears will turn is if there is power going to the drive shafts.

02-14-2009, 02:42 PM	#5
Greatscott I wanna be Dave Join Date: Jul 2005 Location: North Idaho Posts: 3,648	:-(:-(:-( The truck has been pushed back to May.... -x

02-15-2009, 02:28 PM	#6
dirtman Pebble Pounder Join Date: Feb 2009 Location: Cda, Idaho Posts: 138	How about something like a Holmes 35-45T (P-94) motor or maybe a puller motor. I am also going to buy one of the Losi's (in flippin May) and am having the same problem with the motor choices. I want a fair amount a wheel speed but probably not as much as a 7T cobalt puller.

Sponsored Links

RCCrawler Forums

Thread: Crawler q's...Losi crawler