RCCrawler Forums

shmangi · 03-29-2011, 03:51 PM

Is it possible to make the rear wheels spin slower than the front? If so would this even be helpfull or is this a bad idea? It seems it would for climbing and decending hills. Im not talking about dig. I dont want either to lock just roll slower.

I think on an moa you could just change the pinion gears so theyre different but on a shafty would this be possible? Is there a way to program an esc to do that?

Thanks

rod-211 · 03-29-2011, 04:18 PM

Yea its possible. And it helps climb better. I have overdrive gears in the front and underdrive in the rear axle. I like it a lot. What rig are you trying to do this on?

WIDELOAD · 03-29-2011, 04:25 PM

Quote:

Originally Posted by shmangi

Is it possible to make the rear wheels spin slower than the front? If so would this even be helpfull or is this a bad idea? It seems it would for climbing and decending hills. Im not talking about dig. I dont want either to lock just roll slower.
I think on an moa you could just change the pinion gears so theyre different but on a shafty would this be possible? Is there a way to program an esc to do that?
Thanks

Axial's been and done it mate

They've had over drive & under drive gear available for a long time.

shmangi · 03-29-2011, 04:41 PM

I want to do it on a losi comp crawler. Does it matter that they have worm gears?

shmangi · 03-29-2011, 05:09 PM

How do I do this? and is it possible on a losi?

benoj · 03-29-2011, 06:09 PM

on the losi cc the way to do it is run the new hd gears in the front since they have a 21:1 ratio over the stock 25:1 ratio. search in the losi section and you will find a thread on it.

shmangi · 03-29-2011, 08:51 PM

Sweet. Is it worth doing? I mean does it make a big difference? I imagine it wears the rear tires out quicker than the fronts.

WIDELOAD · 03-30-2011, 03:13 AM

Other way around.
You tend to wear out fronts quicker and they are rotating faster than the rears.

shmangi · 03-30-2011, 05:43 PM

Quote:

Originally Posted by WIDELOAD

Other way around.
You tend to wear out fronts quicker and they are rotating faster than the rears.

I thought the rears would because theyll always be dragging.

Is it worth doing? Will it crawl up and down hills better?

WIDELOAD · 03-30-2011, 06:55 PM

You front wear because they are turning faster, it doesnt actually 'drag' the rear.
It is worth doing, better on climbs, smaller turning circle and i found that side hills are better as well (with an axial, Losi is a different kettle of fish)
Down hill there wont be much change.

Best way to find out is suck it & see.

shmangi · 03-31-2011, 01:37 AM

Makes sence. Im gunna try it on my losi so well see how it goes.

superflex · 03-31-2011, 08:26 AM

I was just going to start a new thread with this question and it looks like it is already hear.
Is it better to go 1 up in front and 1 down in the rear ?or 2 up in front and leave the rear stock?
would that be the same?

Duuuuuuuude · 03-31-2011, 09:24 AM

Quote:

Originally Posted by superflex

I was just going to start a new thread with this question and it looks like it is already hear.
Is it better to go 1 up in front and 1 down in the rear ?or 2 up in front and leave the rear stock?
would that be the same?

On what rig?

superflex · 03-31-2011, 11:14 AM

not one specific rig just wondering if that is a sound theory.

Harley · 03-31-2011, 11:27 AM

Quote:

Originally Posted by superflex

not one specific rig just wondering if that is a sound theory.

He is likely asking because saying:

Quote:

Originally Posted by superflex

Is it better to go 1 up in front and 1 down in the rear ?or 2 up in front and leave the rear stock?

"1 up" or "1 down" is arbitrary and means absolutely nothing really. One tooth? One available ratio? One kitten?

A lower gearing will help reduce torque twist so that is many times a good idea on a shafty. On an MOA an lower gear ratio can help reduce start up stall and such. There are many different factors.

superflex · 03-31-2011, 04:21 PM

i get your point, lets say one tooth up or down not a available gear ratio.
or a stock ax-10 and talk available gears

03-29-2011, 03:51 PM	#1
shmangi Newbie Join Date: Mar 2011 Location: south bay Posts: 40	Gearing question??? Is it possible to make the rear wheels spin slower than the front? If so would this even be helpfull or is this a bad idea? It seems it would for climbing and decending hills. Im not talking about dig. I dont want either to lock just roll slower. I think on an moa you could just change the pinion gears so theyre different but on a shafty would this be possible? Is there a way to program an esc to do that? Thanks

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03-29-2011, 04:18 PM	#2
rod-211 Pebble Pounder Join Date: Jan 2010 Location: Joliet Posts: 136	Yea its possible. And it helps climb better. I have overdrive gears in the front and underdrive in the rear axle. I like it a lot. What rig are you trying to do this on?

03-29-2011, 04:41 PM	#4
shmangi Newbie Join Date: Mar 2011 Location: south bay Posts: 40	I want to do it on a losi comp crawler. Does it matter that they have worm gears?

03-29-2011, 05:09 PM	#5
shmangi Newbie Join Date: Mar 2011 Location: south bay Posts: 40	How do I do this? and is it possible on a losi?

03-29-2011, 06:09 PM	#6
benoj I wanna be Dave Join Date: Dec 2008 Location: Madrid, IA Posts: 2,015	on the losi cc the way to do it is run the new hd gears in the front since they have a 21:1 ratio over the stock 25:1 ratio. search in the losi section and you will find a thread on it.

03-29-2011, 08:51 PM	#7
shmangi Newbie Join Date: Mar 2011 Location: south bay Posts: 40	Sweet. Is it worth doing? I mean does it make a big difference? I imagine it wears the rear tires out quicker than the fronts.

03-30-2011, 03:13 AM	#8
WIDELOAD Rock Crawler Join Date: May 2009 Location: Queensland, Australia Posts: 610	Other way around. You tend to wear out fronts quicker and they are rotating faster than the rears.

03-30-2011, 06:55 PM	#10
WIDELOAD Rock Crawler Join Date: May 2009 Location: Queensland, Australia Posts: 610	You front wear because they are turning faster, it doesnt actually 'drag' the rear. It is worth doing, better on climbs, smaller turning circle and i found that side hills are better as well (with an axial, Losi is a different kettle of fish) Down hill there wont be much change. Best way to find out is suck it & see.

03-31-2011, 01:37 AM	#11
shmangi Newbie Join Date: Mar 2011 Location: south bay Posts: 40	Makes sence. Im gunna try it on my losi so well see how it goes.

03-31-2011, 08:26 AM	#12
superflex Rock Stacker Join Date: Feb 2010 Location: buffalo Posts: 69	I was just going to start a new thread with this question and it looks like it is already hear. Is it better to go 1 up in front and 1 down in the rear ?or 2 up in front and leave the rear stock? would that be the same?

03-31-2011, 11:14 AM	#14
superflex Rock Stacker Join Date: Feb 2010 Location: buffalo Posts: 69	not one specific rig just wondering if that is a sound theory.

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03-31-2011, 04:21 PM	#16
superflex Rock Stacker Join Date: Feb 2010 Location: buffalo Posts: 69	i get your point, lets say one tooth up or down not a available gear ratio. or a stock ax-10 and talk available gears

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