RCCrawler Forums

Just Zach · 03-01-2008, 04:07 PM

I'm just trying to think of ways to get the COG lower, has anyone tried a Wheelie King tranny yet? If so how did it hold up?

TK-twister · 03-01-2008, 04:17 PM

Th wheely king tranny is very top heavy and tall. The motor is the highest part of the transmission. You need to get the motor all the way down to the floor. Axial tranny are awesome and many people use the trxxas stampede tranny on there builds. The only thing i got left wheely king on my crawler is the axles.

Just Zach · 03-01-2008, 04:20 PM

Ok, I have it clocked and overall its a lot lighter and no higher than the TXT tranny I have in my TXT crawler. So, what I am specifically wondering is if anyone has tried it in a TXT crawler and if its strong enough.

I'm seriously doubting an Axial would hold up well and I guess I could try a really built pede but I don't think it will hold up.

hairba11 · 03-01-2008, 07:27 PM

I think it depends entirely on what wheel and tire combo you plan on running.
the WK trans is 1.87:1 compared to the txt's 6ish:1
add to that the fact that the TXT axles are 2:1 instead of 2.92:1 like the WK, and you have some pretty tall gearing even with a GD in forn of it.

I ran a WK trans and Axles with 6.5" imex krocks, and managed to break one axle shaft, and abuse the clicker sliper in the WK trans with a 55turn and 13/96 gearing. the rig weighed about 8 lbs.

you might get away with it on regular maxx sized and a GD, but the torque may be too much for the WK trans.
on regualr 5" tall 2.2's I wouldn't worry as much about it.

As always stickiness of compund, driving style and rig weight all factor in

no waranties expressed or implied, not available in all areas, cancel any time.

Just Zach · 03-01-2008, 10:55 PM

Quote:

Originally Posted by hairba11

I think it depends entirely on what wheel and tire combo you plan on running.
the WK trans is 1.87:1 compared to the txt's 6ish:1
add to that the fact that the TXT axles are 2:1 instead of 2.92:1 like the WK, and you have some pretty tall gearing even with a GD in forn of it.

I ran a WK trans and Axles with 6.5" imex krocks, and managed to break one axle shaft, and abuse the clicker sliper in the WK trans with a 55turn and 13/96 gearing. the rig weighed about 8 lbs.

you might get away with it on regular maxx sized and a GD, but the torque may be too much for the WK trans.
on regualr 5" tall 2.2's I wouldn't worry as much about it.

As always stickiness of compund, driving style and rig weight all factor in

no waranties expressed or implied, not available in all areas, cancel any time.

Thank you, exactly what I was searching for. I guess I'm sticking with the TXT tranny for now.

Tanis · 03-01-2008, 11:03 PM

I have an R2 Heavy Duty that I ran in my TXT super with 40 series Mashers, the reduction is perfect and with a Cobalt Puller 10T motor, it has plenty of torque and wheelspeed, especially on 3cell lipo. And the gears are beef in the new Heavy Duty version, as well as getting the CG as low as possible.

EDIT: From seeing how a small brushless motor in a 2.2 can take out a WK tranny, I don't think they are up to the task for a super.

hairba11 · 03-02-2008, 06:12 AM

I have seen a clocked TXT trans before, with one 55turn in the bottom position.
it does require a little custom mounting obviously.

Just Zach · 03-02-2008, 09:11 AM

My TXT tranny is clocked right now, I've had a couple of R2 trannies without an issue but have heard about a lot of problems. Tanis, how long have you been running the HD R2?

Tanis · 03-02-2008, 09:35 AM

A couple of months, and I even tested it's strength with my Big HH Hyperion brushless motor. I have destroyed standard R2's before, grenaded the gears in them. The HD version has gears that are twice as thick, and configured differently, for a better transfer of power with the same reduction, there are more gears inside. The hard part was drilling the output shafts for the crosspin(hardened steel, drillbit eating.....

)

Just Zach · 03-02-2008, 09:52 AM

Quote:

Originally Posted by Tanis

A couple of months, and I even tested it's strength with my Big HH Hyperion brushless motor. I have destroyed standard R2's before, grenaded the gears in them. The HD version has gears that are twice as thick, and configured differently, for a better transfer of power with the same reduction, there are more gears inside. The hard part was drilling the output shafts for the crosspin(hardened steel, drillbit eating.....

)

Well, looks like that is my answer. They are 5mm outputs right?

k9popo · 03-02-2008, 11:29 AM

Hey Z, have you seen these yet???

http://www.tcscrawlers.com/Hot-Racin...T-p-16821.html

They might make for a stout lil tranny...

Just Zach · 03-02-2008, 12:59 PM

Quote:

Originally Posted by k9popo

Hey Z, have you seen these yet???

http://www.tcscrawlers.com/Hot-Racin...T-p-16821.html

They might make for a stout lil tranny...

Hmmm, doesn anyone make a stronger output? I'm suddenly thinking those+alloy tranny case+stonger outputs+VF dig=best solution ever.

The Axial is 2.6:1, anyone know what the TXT tranny is?

Tanis · 03-02-2008, 06:16 PM

Quote:

Originally Posted by justgiveereh

Well, looks like that is my answer. They are 5mm outputs right?

They are 5mm outputs, and if you use Revo shafts, they are a little sloppy, but maxx shafts with the right yoke are good. I haven't noticed any problems with the little bit of wobbling from the Revo's. Course, you have my axles now, so I don't have my shafty super anymore.

hairba11 · 03-02-2008, 06:33 PM

Quote:

Originally Posted by justgiveereh

The Axial is 2.6:1, anyone know what the TXT tranny is?

according to stuff I have found,
jugg is 6.37:1
txt-1 is 6.05:1

03-01-2008, 04:07 PM	#1
Just Zach '08 2.2 National Champ Join Date: Nov 2006 Location: UTRCRC Posts: 5,585	How would a WK tranny hold up? I'm just trying to think of ways to get the COG lower, has anyone tried a Wheelie King tranny yet? If so how did it hold up?

03-01-2008, 04:20 PM	#3
Just Zach '08 2.2 National Champ Join Date: Nov 2006 Location: UTRCRC Posts: 5,585	Ok, I have it clocked and overall its a lot lighter and no higher than the TXT tranny I have in my TXT crawler. So, what I am specifically wondering is if anyone has tried it in a TXT crawler and if its strong enough. I'm seriously doubting an Axial would hold up well and I guess I could try a really built pede but I don't think it will hold up. Last edited by Just Zach; 03-01-2008 at 04:21 PM. Reason: add

03-01-2008, 11:03 PM	#6
Tanis Keep it real Join Date: Jun 2006 Location: Yakima,WA Posts: 6,532	I have an R2 Heavy Duty that I ran in my TXT super with 40 series Mashers, the reduction is perfect and with a Cobalt Puller 10T motor, it has plenty of torque and wheelspeed, especially on 3cell lipo. And the gears are beef in the new Heavy Duty version, as well as getting the CG as low as possible. EDIT: From seeing how a small brushless motor in a 2.2 can take out a WK tranny, I don't think they are up to the task for a super. Last edited by Tanis; 03-01-2008 at 11:34 PM.

03-02-2008, 09:35 AM	#9
Tanis Keep it real Join Date: Jun 2006 Location: Yakima,WA Posts: 6,532	A couple of months, and I even tested it's strength with my Big HH Hyperion brushless motor. I have destroyed standard R2's before, grenaded the gears in them. The HD version has gears that are twice as thick, and configured differently, for a better transfer of power with the same reduction, there are more gears inside. The hard part was drilling the output shafts for the crosspin(hardened steel, drillbit eating.....)

03-01-2008, 04:17 PM	#2
TK-twister Rock Crawler Join Date: Aug 2007 Location: Tucson Posts: 584	Th wheely king tranny is very top heavy and tall. The motor is the highest part of the transmission. You need to get the motor all the way down to the floor. Axial tranny are awesome and many people use the trxxas stampede tranny on there builds. The only thing i got left wheely king on my crawler is the axles.

03-01-2008, 07:27 PM	#4
hairba11 RCC Addict Join Date: Mar 2007 Location: St. Louis (High Ridge) Posts: 1,279	I think it depends entirely on what wheel and tire combo you plan on running. the WK trans is 1.87:1 compared to the txt's 6ish:1 add to that the fact that the TXT axles are 2:1 instead of 2.92:1 like the WK, and you have some pretty tall gearing even with a GD in forn of it. I ran a WK trans and Axles with 6.5" imex krocks, and managed to break one axle shaft, and abuse the clicker sliper in the WK trans with a 55turn and 13/96 gearing. the rig weighed about 8 lbs. you might get away with it on regular maxx sized and a GD, but the torque may be too much for the WK trans. on regualr 5" tall 2.2's I wouldn't worry as much about it. As always stickiness of compund, driving style and rig weight all factor in no waranties expressed or implied, not available in all areas, cancel any time.

03-02-2008, 06:12 AM	#7
hairba11 RCC Addict Join Date: Mar 2007 Location: St. Louis (High Ridge) Posts: 1,279	I have seen a clocked TXT trans before, with one 55turn in the bottom position. it does require a little custom mounting obviously.

03-02-2008, 09:11 AM	#8
Just Zach '08 2.2 National Champ Join Date: Nov 2006 Location: UTRCRC Posts: 5,585	My TXT tranny is clocked right now, I've had a couple of R2 trannies without an issue but have heard about a lot of problems. Tanis, how long have you been running the HD R2?

03-02-2008, 11:29 AM	#11
k9popo I wanna be Dave Join Date: Sep 2005 Location: * Posts: 2,877	Hey Z, have you seen these yet??? http://www.tcscrawlers.com/Hot-Racin...T-p-16821.html They might make for a stout lil tranny...

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