RCCrawler Forums

1rcmonster · 06-21-2009, 07:53 AM

Well my LCC worked GREAT at the first comp I used it at. The only issue I had was motor heat. I smoked the motor 2 times but it kept on working. Once the comp was complete I was driving around doing some different lines and the motor smoked out a 3rd and final time. It was so HOT that before I could pull it from the truck the pinion had melted the spur. I was running a 27t arm in a 35t can with a 14t pinion. I broke 1 cv axle but that was from a pretty hard fall onto 1 wheel.

Other than those issues I was really impreesed with my LCC and took 1st place at the comp.

So all in all a GREAT event for myself seeing as how I usually finish mid-pack....

.. to Losi for building an AWESOME rig.....

JPH Racing · 06-21-2009, 08:56 AM

Congrats on the comp results!

Just gotta get those motor temps under control, lucky thing the 3rd smokin' was after the comp!

RCLOCO · 06-21-2009, 12:28 PM

Good job at the comp.

What motor are you going to use next? maybe a brushless. I still can't make up my mind what to put in mine.

big geo · 06-21-2009, 03:29 PM

sweet good for you must be a good weekend for losi cuse i had a grate first comp with mine too im pretty shure i won but woint know till results are poasted

ripper7777777 · 06-21-2009, 03:59 PM

Was that 2s or 3s?

and glad to know the losi survived the comp with minimal damage. I'm planning to comp mine on the 28th with minimal tweaks, kinda of a baseline. After that I think I'm going custom chassis.

1rcmonster · 06-22-2009, 04:30 PM

The motor I am going to run next is the Traxxas Titan with a 12t pinion. I am using an Xcite 11.1v 1350mah. I was very happy with the end results other than the motor issues, hope the Titan will help there.

eric113 · 06-22-2009, 04:45 PM

Quote:

Originally Posted by 1rcmonster

The motor I am going to run next is the Traxxas Titan with a 12t pinion. I am using an Xcite 11.1v 1350mah. I was very happy with the end results other than the motor issues, hope the Titan will help there.

That good to hear about the Xcite batterys, I have 1300 3s packs I love them them.

1rcmonster · 07-05-2009, 11:23 AM

Well I replaced my spur gear today and installed the Titan with a 12t pinion. What a difference. There is much more punch right off the start and the wheel speed is good. I was running for a good 45 minutes and the motor never even came close to HOT as before. Temped the motor and it was at 125 degrees. The more the truck breaks in the better it is getting. I am learning how to use the dig more and when to use it and the LCC just keeps impressing me.

h8z2luze · 07-05-2009, 01:17 PM

Quote:

Originally Posted by 1rcmonster

Well I replaced my spur gear today and installed the Titan with a 12t pinion. What a difference. There is much more punch right off the start and the wheel speed is good. I was running for a good 45 minutes and the motor never even came close to HOT as before. Temped the motor and it was at 125 degrees. The more the truck breaks in the better it is getting. I am learning how to use the dig more and when to use it and the LCC just keeps impressing me.

Thats awesome to hear cause its the setup im going to try. Thanks for posting your findings! Good job in the comp too!

1rcmonster · 07-05-2009, 01:28 PM

As stated, you really need to learn to use the dig. At first I was using it but now I am USING it. When doing tight turns I was staying in the throttle too long, building excess heat in the motor. Now I have learned to blip the throttle when needing to turn tightly, this cuts down on the heat. Also when the axles, mainly the front, seems bound that is a good time to use the dig. You can still get in the throttle when needed but I feel as tho prolonged high revs is what was causing alot of my heat issues.

h8z2luze · 07-05-2009, 02:11 PM

What about a heat sink on the motor?

InFlames · 07-05-2009, 03:04 PM

Quote:

Originally Posted by h8z2luze

What about a heat sink on the motor?

It couldnt hurt.

h8z2luze · 07-05-2009, 03:23 PM

I think im going to try that. How hot is normal for the 550 motor?

1rcmonster · 07-05-2009, 05:20 PM

The 550 is a pretty tight fit. I have been running Emaxxes for years and have never run heatsinks. We beat the hell out them too. Usaully running at Monster Truck shows and running multiple packs thru them continuosly. Have never burnt up a 550 motor but have smoked a few battery packs.

It was about 80 degrees here today and no wind where we were crawling so I think the 125 degree motor temp is very good. When I ran the 27t motor it got EXTREMELY hot in a very short time and it was cooler and windy as well.

So far the 550 is the best motor. I started with a 35t...SMOKE, then the 27t arm in the 35t can...SMOKE. After a 45 minute runtime and a temp of 125 I am liking this combo.

grouser · 07-06-2009, 10:47 AM

Quote:

Originally Posted by h8z2luze

What about a heat sink on the motor?

this is such a simple fix for the heat,,,,,,

JasonJones · 07-06-2009, 11:01 AM

Quote:

Originally Posted by grouser

this is such a simple fix for the heat,,,,,,

The most proliferated photo in the LCC Forum

The fan on the motor does make a difference. Friend and I were running our LCC's yesterday with the same setups, on the same rocks doing the same lines, etc... I measured my motor temp @ 121f and his was 140f... 20degree difference. I run a fan, he does not, and I think I'm more heavy handed on the throttle than he is as well (I've broken 3cvd's, he's broken none!). I should mention that the Ambient temp outside when we were crawling was 113f so the temps of the motors being relative to the ambient was not very hot at all.

ripper7777777 · 07-06-2009, 11:06 AM

Quote:

Originally Posted by JasonJones

The most proliferated photo in the LCC Forum

HA! HA!

Yea the Losi should have come with a 550 and a 12t. A bit of research on Losi's part would have made a much better launch.

InFlames · 07-06-2009, 12:30 PM

Quote:

Originally Posted by JasonJones

The most proliferated photo in the LCC Forum

I was just going to say something about that, lol.

I was looking at fans on ebay and the cheapest ones are like $4 shipped for 3 racing ones from hong kong or whatever, how would you go about wiring a fan though?

h8z2luze · 07-06-2009, 01:48 PM

113F outside!!! Thats way to hot to be outdoors haha.

JasonJones · 07-06-2009, 02:27 PM

Quote:

Originally Posted by InFlames

I was just going to say something about that, lol.

I was looking at fans on ebay and the cheapest ones are like $4 shipped for 3 racing ones from hong kong or whatever, how would you go about wiring a fan though?

There is a guy in California selling those same 3 Racing 5V fans. Being they are 5v, they can run off the RX power. Just be aware that you're going to be drawing more A out of your ESC at that point. I personally would wire in a 12v fan to your ESC's battery connector and run it direct. That does mean you have to unplug to get it all to shut down, but you should be doing that anyways so as not to kill your lipo by forgetting its plugged in. I run a 50mm fan up top of the chassis, and I've ordered a few 40mm 12v fans that should be here next week. 40mm should fit down right on the motor for the most part. The stock Losi fan in the pics above is a 30mm Fan like the 3 racing ones. If you search ebay for 30mm fans, you'll get a bunch, even some 12v ones. Look for high CFM (5+) and low Amp draw .8 or lower.

and yeah, 113f is hot

06-21-2009, 07:53 AM	#1
1rcmonster Rock Crawler Join Date: Jan 2008 Location: Eveleth Posts: 713	June 20th First Comp....UPDATED 8-9-09 Well my LCC worked GREAT at the first comp I used it at. The only issue I had was motor heat. I smoked the motor 2 times but it kept on working. Once the comp was complete I was driving around doing some different lines and the motor smoked out a 3rd and final time. It was so HOT that before I could pull it from the truck the pinion had melted the spur. I was running a 27t arm in a 35t can with a 14t pinion. I broke 1 cv axle but that was from a pretty hard fall onto 1 wheel. Other than those issues I was really impreesed with my LCC and took 1st place at the comp. So all in all a GREAT event for myself seeing as how I usually finish mid-pack.... .. to Losi for building an AWESOME rig..... Last edited by 1rcmonster; 08-10-2009 at 05:24 AM.

07-05-2009, 11:23 AM	#8
1rcmonster Rock Crawler Join Date: Jan 2008 Location: Eveleth Posts: 713	Updates.... Well I replaced my spur gear today and installed the Titan with a 12t pinion. What a difference. There is much more punch right off the start and the wheel speed is good. I was running for a good 45 minutes and the motor never even came close to HOT as before. Temped the motor and it was at 125 degrees. The more the truck breaks in the better it is getting. I am learning how to use the dig more and when to use it and the LCC just keeps impressing me.

07-05-2009, 02:11 PM	#11
h8z2luze Rock Crawler Join Date: Sep 2008 Location: Oroville, CA Posts: 838	What about a heat sink on the motor? Last edited by h8z2luze; 07-05-2009 at 02:28 PM.

06-21-2009, 08:56 AM	#2
JPH Racing RCC Addict Join Date: Aug 2007 Location: Rohnert Park Posts: 1,093	Congrats on the comp results! Just gotta get those motor temps under control, lucky thing the 3rd smokin' was after the comp!

06-21-2009, 12:28 PM	#3
RCLOCO Newbie Join Date: Jun 2009 Location: In My Own Mind Posts: 6	Good job at the comp. What motor are you going to use next? maybe a brushless. I still can't make up my mind what to put in mine.

06-21-2009, 03:29 PM	#4
big geo Pebble Pounder Join Date: Mar 2008 Location: paradise Posts: 177	sweet good for you must be a good weekend for losi cuse i had a grate first comp with mine too im pretty shure i won but woint know till results are poasted

06-21-2009, 03:59 PM	#5
ripper7777777 Rock Crawler Join Date: Apr 2005 Location: Humble Posts: 800	Was that 2s or 3s? and glad to know the losi survived the comp with minimal damage. I'm planning to comp mine on the 28th with minimal tweaks, kinda of a baseline. After that I think I'm going custom chassis.

06-22-2009, 04:30 PM	#6
1rcmonster Rock Crawler Join Date: Jan 2008 Location: Eveleth Posts: 713	The motor I am going to run next is the Traxxas Titan with a 12t pinion. I am using an Xcite 11.1v 1350mah. I was very happy with the end results other than the motor issues, hope the Titan will help there.

07-05-2009, 01:28 PM	#10
1rcmonster Rock Crawler Join Date: Jan 2008 Location: Eveleth Posts: 713	As stated, you really need to learn to use the dig. At first I was using it but now I am USING it. When doing tight turns I was staying in the throttle too long, building excess heat in the motor. Now I have learned to blip the throttle when needing to turn tightly, this cuts down on the heat. Also when the axles, mainly the front, seems bound that is a good time to use the dig. You can still get in the throttle when needed but I feel as tho prolonged high revs is what was causing alot of my heat issues.

07-05-2009, 03:23 PM	#13
h8z2luze Rock Crawler Join Date: Sep 2008 Location: Oroville, CA Posts: 838	I think im going to try that. How hot is normal for the 550 motor?

07-05-2009, 05:20 PM	#14
1rcmonster Rock Crawler Join Date: Jan 2008 Location: Eveleth Posts: 713	The 550 is a pretty tight fit. I have been running Emaxxes for years and have never run heatsinks. We beat the hell out them too. Usaully running at Monster Truck shows and running multiple packs thru them continuosly. Have never burnt up a 550 motor but have smoked a few battery packs. It was about 80 degrees here today and no wind where we were crawling so I think the 125 degree motor temp is very good. When I ran the 27t motor it got EXTREMELY hot in a very short time and it was cooler and windy as well. So far the 550 is the best motor. I started with a 35t...SMOKE, then the 27t arm in the 35t can...SMOKE. After a 45 minute runtime and a temp of 125 I am liking this combo.

07-06-2009, 01:48 PM	#19
h8z2luze Rock Crawler Join Date: Sep 2008 Location: Oroville, CA Posts: 838	113F outside!!! Thats way to hot to be outdoors haha.

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