Go Back   RCCrawler Forums > Scale Rigs Brand Specific Tech > Axial SCX10 II
Loading

Notices

Thread: underdrive gear set?

Reply
 
LinkBack Thread Tools Display Modes
Old 08-12-2019, 03:53 PM   #1
Pebble Pounder
 
Join Date: Aug 2011
Location: phoenix (Ahwatukee)
Posts: 193
Default underdrive gear set?

Anyone making an underdrive gear set? I want to underdrive the rear on my UMG10.

Last edited by strap624; 08-13-2019 at 09:47 AM.
strap624 is offline   Reply With Quote
Sponsored Links
Old 08-12-2019, 05:36 PM   #2
RCC Addict
 
calcagno45's Avatar
 
Join Date: Aug 2008
Location: Paulina
Posts: 1,174
Default Re: underdrive gear set?

Overdrive only exist right now. Underdrive would likely require a larger diameter ring gear which is limited by the case dimensions.
calcagno45 is offline   Reply With Quote
Old 08-13-2019, 09:47 AM   #3
Pebble Pounder
 
Join Date: Aug 2011
Location: phoenix (Ahwatukee)
Posts: 193
Default Re: underdrive gear set?

If I overdrive the front, will torque twist be an issue?
strap624 is offline   Reply With Quote
Old 08-14-2019, 04:40 PM   #4
MEOW
 
Natedog's Avatar
 
Join Date: Jan 2006
Location: Wackifornia
Posts: 11,567
Default Re: underdrive gear set?

OD front and/or UD rear should reduce percieved TT (torque twist).
Natedog is offline   Reply With Quote
Old 08-15-2019, 04:57 AM   #5
Quarry Creeper
 
Join Date: Feb 2008
Location: US
Posts: 351
Default Re: underdrive gear set?

Quote:
Originally Posted by strap624 View Post
If I overdrive the front, will torque twist be an issue?
What Nate said. Itíll help reduce torque twist. One of the best upgrades I did on the old scx was to overdrive front and underdrive rear. It makes it so the front axle will pull you up an incline more than the rear axle pushes you up so itís much easier to climb without flipping. There is still torque twist on steep climbs but it is much reduced.

Second, steering is noticeably improved as it almost acts as a minor dig setup where the front grabs and goes more than the rear so your truck turns tighter.
hibbs is offline   Reply With Quote
Old 08-16-2019, 07:48 AM   #6
v33
Quarry Creeper
 
Join Date: Aug 2005
Location: Asia
Posts: 479
Default Re: underdrive gear set?

i achieved OD/UD on an scx10v2 by replacing the whole tranny. i used a toyzuki motor mount (clone i think for a scx10 v1 chassis) and married it to a china modified tcase, drilled and added a center shaft that rotates OD (front) and UD (rear) gears, the axle are all stock.

This is the modded tcase...


thus was how the old toyzuki style motor mount was mounted before modding the tcase, currently the tcase lays flat on the alloy tranny skid plate.



my chassis is currently being updated again, i hope to drive it soon.

hth!
v33 is offline   Reply With Quote
Old 08-16-2019, 10:43 AM   #7
MEOW
 
Natedog's Avatar
 
Join Date: Jan 2006
Location: Wackifornia
Posts: 11,567
Default Re: underdrive gear set?

Quote:
Originally Posted by hibbs View Post
What Nate said. Itíll help reduce torque twist. One of the best upgrades I did on the old scx was to overdrive front and underdrive rear. It makes it so the front axle will pull you up an incline more than the rear axle pushes you up so itís much easier to climb without flipping. There is still torque twist on steep climbs but it is much reduced.

Second, steering is noticeably improved as it almost acts as a minor dig setup where the front grabs and goes more than the rear so your truck turns tighter.


Quote:
Originally Posted by v33 View Post
i achieved OD/UD on an scx10v2 by replacing the whole tranny. i used a toyzuki motor mount (clone i think for a scx10 v1 chassis) and married it to a china modified tcase, drilled and added a center shaft that rotates OD (front) and UD (rear) gears, the axle are all stock.

This is the modded tcase...
thus was how the old toyzuki style motor mount was mounted before modding the tcase, currently the tcase lays flat on the alloy tranny skid plate.

my chassis is currently being updated again, i hope to drive it soon.
Very nice!
Natedog is offline   Reply With Quote
Reply



underdrive gear set? - Similar Threads
Thread Thread Starter Forum Replies Last Post
Underdrive gear help.. Vagos2 Newbie General 2 06-01-2017 11:11 PM
Question about the new (to me) underdrive bevel gear set Master Basher Axial AX-10 Scorpion 18 07-25-2014 06:02 PM
Wraith Heavy Duty Bevel Gear Set - Underdrive REAR - ISSUE slimfire Axial Wraith 11 01-24-2013 04:03 AM
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 02:46 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com