RCCrawler Forums

Tommy R · 10-29-2009, 04:59 PM

I know it's been done before, but whatever.... ;)

EDIT: Here's another video after I modified the chassis for my Jeep body

93firebird · 10-29-2009, 06:06 PM

Looks so much like a real dragster taking off at the line!

Brett B. · 10-29-2009, 07:00 PM

Wow that's quick off the line

grob23 · 10-29-2009, 09:48 PM

that things shits n gits!

what gearing ya runnin?

calikingcrawler · 10-29-2009, 10:52 PM

I had my slash motor and esc in mine when I first built it, just to get it on the rocks. Thing hooked it up. Raced my buddy and his fast turn motored SCX at our local track untill I took a jump to hard and hit the outside front tire at full lock and destroyed my servo.

Tommy R · 10-29-2009, 10:54 PM

That's with the stock 14 tooth pinion, 3s LiPo, and Sidewinder ESC.

ae racer · 10-29-2009, 11:07 PM

Quote:

Originally Posted by calikingcrawler

I had my slash motor and esc in mine when I first built it, just to get it on the rocks. Thing hooked it up. Raced my buddy and his fast turn motored SCX at our local track untill I took a jump to hard and hit the outside front tire at full lock and destroyed my servo.

that race was pretty fun wasnt it...lol yours was just a bit faster....btw mine was a 27 turn motor but i think that i was running a smaller pinion than you...

Rjohn929 · 11-02-2009, 11:52 PM

Got twist!?

yellowpasta2000 · 11-03-2009, 01:22 PM

Quote:

Originally Posted by Rjohn929

Got twist!?

thats what im wondering... cuz i wana put a Brushless in my scx10 tr!!!

romulus22 · 11-03-2009, 02:27 PM

very sweet launches. makes me wanna do a solid rear drag car.
i see you got your right rear off the ground too

low_down · 11-04-2009, 08:27 AM

now if only a real ford could do that

Tommy R · 11-04-2009, 08:37 AM

I've since installed a Jeep hardbody and shortened the wheelbase to just under 10.5" and it launches much straighter now. Though I believe the improvement came from better suspension geometry, a lower ride height, and installing firmer rear foams. I also geared it up to a 15 tooth pinion, which I think is too big for my purposes.

Tommy R · 11-11-2009, 07:54 AM

I posted this in my build thread, but thought I'd post here, too, for those who may be interested....

Well, I've decided against the Slash motor. The reason is fairly simple. It just doesn't offer enough finite low speed control. And it's accentuated by its lack of torque. In some tough spots it will stall until it starts drawing enough current and then it'll surge forward too abruptly. Other times, it just doesn't begin crawling slowly enough. In other words, it requires too much throttle to get it going and then you can back off and crawl slower. It actually reminds me of wheelin' a 1:1 rig with an automatic transmission. When it gets into a bit of a bind it'll require more throttle and eventually the converter loads up and then can "shock" the tires into spinning just a bit. It can make it very difficult to very slowly crawl an obstacle and it's why I have three pedals in my Jeep!

Granted, a much smaller pinion could help, but then it would defeat the purpose of the higher speed motor, IMO. In addition, for a crawler, this is just an unrealistic amount of wheel speed and that's not what I'm after.

And all this is after I altered the curves on my speed controller (Sidewinder).

So I'm going to look into a 35T or maybe a 27T motor so I can still have some wheelspeed, but it should provide enough torque and progressive throttle control to keep me happy. The Slash motor will see use again, though. My next project after the 6x6 trials truck will be a dual purpose pre-runner/rock crawler. This motor will be great for it.

Cajunbrn · 11-11-2009, 05:55 PM

Sweet!!!!

Tortuga275 · 11-11-2009, 06:47 PM

The slash motor has had more than enough torque and slow speed control for decent crawling. how hard were the lines you crawled with it?

dezslash · 11-11-2009, 06:57 PM

I have been thinking of putting my old slash motor in my SCX looks like it could be fun. As of now i got a old trinity 27T and it has enought wheel speed on 2s that it makes it quicker on the flat sections between obstacle's I'm gonna go 3s once i pick up a new esc. IT has alot of low speed torque and doesnt studder at all.

rctrucknut · 11-11-2009, 06:58 PM

nice impessive, but it would never do that without the lipos.

Tommy R · 11-11-2009, 07:40 PM

Quote:

Originally Posted by Tortuga275

The slash motor has had more than enough torque and slow speed control for decent crawling. how hard were the lines you crawled with it?

They were pretty challenging lines, but it wasn't just on the really hard stuff. In any situation where a little more throttle was required to crawl an obstacle, it was not able to move with as much control as I'd had with my 55T before. Is it horrible? Nah. But it's not as good as I want. In an easy scenario like just crawling on smooth pavement to see how slowly I can crawl it does fine. But on steep ascents or in a bit of a bind or at a ledge and it just doesn't perform the way I want it to....for this truck. ;)

Tommy R · 11-11-2009, 07:40 PM

Quote:

Originally Posted by rctrucknut

nice impessive, but it would never do that without the lipos.

Fine with me!

I've got no plans to go back to NiMH anytime soon. ;)

Offroader5 · 11-11-2009, 07:47 PM

Nice. Never would have expected the low speed ability if you had only SAID it was a 12t

Makes me want to install my Xcelorin 4800 in mine.

10-29-2009, 04:59 PM	#1
Tommy R I wanna be Dave Join Date: Aug 2008 Location: Austin, TX, USA Posts: 4,273	SCX10 with Slash Motor I know it's been done before, but whatever.... ;) EDIT: Here's another video after I modified the chassis for my Jeep body Last edited by Tommy R; 02-27-2010 at 09:52 PM.

10-29-2009, 07:00 PM	#3
Brett B. Pebble Pounder Join Date: Oct 2009 Location: Whitmore Lake Posts: 171	Sweet!! Wow that's quick off the line

10-29-2009, 06:06 PM	#2
93firebird Pebble Pounder Join Date: Sep 2009 Location: Newark Posts: 107	Looks so much like a real dragster taking off at the line!

10-29-2009, 09:48 PM	#4
grob23 RCC Addict Join Date: Nov 2005 Location: Kansas Posts: 1,280	that things shits n gits! what gearing ya runnin?

10-29-2009, 10:52 PM	#5
calikingcrawler RCC Addict Join Date: Jan 2009 Location: Crawlifornia Posts: 1,941	I had my slash motor and esc in mine when I first built it, just to get it on the rocks. Thing hooked it up. Raced my buddy and his fast turn motored SCX at our local track untill I took a jump to hard and hit the outside front tire at full lock and destroyed my servo.

10-29-2009, 10:54 PM	#6
Tommy R I wanna be Dave Join Date: Aug 2008 Location: Austin, TX, USA Posts: 4,273	That's with the stock 14 tooth pinion, 3s LiPo, and Sidewinder ESC.

11-02-2009, 11:52 PM	#8
Rjohn929 RCC Addict Join Date: May 2009 Location: Weston Posts: 1,319	Got twist!?

11-03-2009, 02:27 PM	#10
romulus22 0 0 Join Date: Jul 2006 Location: FT. Thomas Posts: 1,830	very sweet launches. makes me wanna do a solid rear drag car. i see you got your right rear off the ground too

11-04-2009, 08:27 AM	#11
low_down Rock Stacker Join Date: Oct 2009 Location: YORK Posts: 80	now if only a real ford could do that

11-04-2009, 08:37 AM	#12
Tommy R I wanna be Dave Join Date: Aug 2008 Location: Austin, TX, USA Posts: 4,273	I've since installed a Jeep hardbody and shortened the wheelbase to just under 10.5" and it launches much straighter now. Though I believe the improvement came from better suspension geometry, a lower ride height, and installing firmer rear foams. I also geared it up to a 15 tooth pinion, which I think is too big for my purposes.

11-11-2009, 07:54 AM	#13
Tommy R I wanna be Dave Join Date: Aug 2008 Location: Austin, TX, USA Posts: 4,273	I posted this in my build thread, but thought I'd post here, too, for those who may be interested.... Well, I've decided against the Slash motor. The reason is fairly simple. It just doesn't offer enough finite low speed control. And it's accentuated by its lack of torque. In some tough spots it will stall until it starts drawing enough current and then it'll surge forward too abruptly. Other times, it just doesn't begin crawling slowly enough. In other words, it requires too much throttle to get it going and then you can back off and crawl slower. It actually reminds me of wheelin' a 1:1 rig with an automatic transmission. When it gets into a bit of a bind it'll require more throttle and eventually the converter loads up and then can "shock" the tires into spinning just a bit. It can make it very difficult to very slowly crawl an obstacle and it's why I have three pedals in my Jeep! Granted, a much smaller pinion could help, but then it would defeat the purpose of the higher speed motor, IMO. In addition, for a crawler, this is just an unrealistic amount of wheel speed and that's not what I'm after. And all this is after I altered the curves on my speed controller (Sidewinder). So I'm going to look into a 35T or maybe a 27T motor so I can still have some wheelspeed, but it should provide enough torque and progressive throttle control to keep me happy. The Slash motor will see use again, though. My next project after the 6x6 trials truck will be a dual purpose pre-runner/rock crawler. This motor will be great for it.

11-11-2009, 05:55 PM	#14
Cajunbrn Rock Stacker Join Date: Aug 2009 Location: LITH Posts: 60	Sweet!!!!

Sponsored Links

11-11-2009, 06:47 PM	#15
Tortuga275 Quarry Creeper Join Date: Sep 2009 Location: Ukiah Posts: 280	The slash motor has had more than enough torque and slow speed control for decent crawling. how hard were the lines you crawled with it?

11-11-2009, 06:57 PM	#16
dezslash Pebble Pounder Join Date: Oct 2008 Location: albuquerque Posts: 165	I have been thinking of putting my old slash motor in my SCX looks like it could be fun. As of now i got a old trinity 27T and it has enought wheel speed on 2s that it makes it quicker on the flat sections between obstacle's I'm gonna go 3s once i pick up a new esc. IT has alot of low speed torque and doesnt studder at all.

11-11-2009, 06:58 PM	#17
rctrucknut Pebble Pounder Join Date: Jan 2008 Location: foothills of va. Posts: 173	nice impessive, but it would never do that without the lipos.

11-11-2009, 07:47 PM	#20
Offroader5 Picky Fab'r/Acetal Junky Join Date: Jul 2006 Location: Arizona Desert/AJ Posts: 3,073	Nice. Never would have expected the low speed ability if you had only SAID it was a 12t Makes me want to install my Xcelorin 4800 in mine.

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