Go Back  R/C Tech Forums > General Forums > Electric Off-Road
SmartDiff in Electric > SmartDiff in Electric

SmartDiff in Electric

Reply

Old 05-17-2009, 04:53 AM
  #1  
Tech Elite
Thread Starter
iTrader: (6)
 
kufman's Avatar
 
Join Date: Feb 2004
Location: Elburn, IL
Posts: 3,430
Trader Rating: 6 (100%+)
Default SmartDiff in Electric

Just starting a thread for anyone who is running the Losi SmartDiff in an Electric 1/8th.

I just got mine on Friday and have started messing around with it. One problem I did have was the outdrives are much shorted than the stock RC8 ones, but I can solve this by using AE outdrives. For the meatime I have relocated my center diff back to the stock location and the CVD's are long enough to reach. My initial impression is that this device doesn't do much more than 10,000 wt oil in a regular center diff. My front tires still seem to unload like crazy. I am using the softest springs and only two of them.

Anyone else tried this thing?
kufman is offline  
Reply With Quote
Old 05-17-2009, 05:16 AM
  #2  
Tech Elite
iTrader: (12)
 
badassrevo's Avatar
 
Join Date: May 2007
Location: Roaming Shores, Ohio
Posts: 3,322
Trader Rating: 12 (100%+)
Default

Most of the guys in my area are running it in the front, not the center.
badassrevo is offline  
Reply With Quote
Old 05-17-2009, 05:54 AM
  #3  
Tech Elite
 
UK.hardcore's Avatar
 
Join Date: Aug 2007
Location: Belgium.
Posts: 2,142
Default

The UK Nitro guys say these diff are good for 30 minutes and then a revision is already needed.
UK.hardcore is offline  
Reply With Quote
Old 05-17-2009, 06:04 AM
  #4  
Tech Master
iTrader: (17)
 
rearviewmirror's Avatar
 
Join Date: Nov 2008
Location: Melbourne / Austin
Posts: 1,844
Trader Rating: 17 (100%+)
Default

Originally Posted by badassrevo View Post
Most of the guys in my area are running it in the front, not the center.
That's interesting because no one here runs them in the front, only the center.
rearviewmirror is offline  
Reply With Quote
Old 05-17-2009, 10:45 AM
  #5  
Tech Elite
Thread Starter
iTrader: (6)
 
kufman's Avatar
 
Join Date: Feb 2004
Location: Elburn, IL
Posts: 3,430
Trader Rating: 6 (100%+)
Default

I was only interested in using it in the center to prevent the front tires from ballooning when I get on power. It doesn't seem to do much on that front. What I am really looking for is a spool on power and free diff action off power.
kufman is offline  
Reply With Quote
Old 05-17-2009, 10:50 AM
  #6  
Tech Master
iTrader: (17)
 
rearviewmirror's Avatar
 
Join Date: Nov 2008
Location: Melbourne / Austin
Posts: 1,844
Trader Rating: 17 (100%+)
Default

Originally Posted by kufman View Post
I was only interested in using it in the center to prevent the front tires from ballooning when I get on power. It doesn't seem to do much on that front. What I am really looking for is a spool on power and free diff action off power.
I'm not even sure about how it will effect the ballooning of the front tires. The guys here who run them on their electric say it aids greatly in lower speed turns. Apparently they can get around the bend much faster w/ the smart diff.
rearviewmirror is offline  
Reply With Quote
Old 05-17-2009, 11:09 AM
  #7  
Tech Elite
iTrader: (19)
 
Join Date: Dec 2007
Location: Chicago, IL
Posts: 2,854
Trader Rating: 19 (100%+)
Default

I use the xray active diff in the front on occassion and it works pretty well. In the front, it basically allows the car to pull more around turns on power, but as soon as you let off the throttle, the diff opens up and you get more turn in. It worked very well when our local track had a big sweeper, you could feel the car pulling hard on power. No one could keep up with me on that turn. However, the off power steering can make the car twitchy in some circumstances.
Edumakated is offline  
Reply With Quote
Old 05-17-2009, 11:14 AM
  #8  
Tech Master
iTrader: (28)
 
$Tmoney$'s Avatar
 
Join Date: Jun 2008
Location: Alta Loma
Posts: 1,529
Trader Rating: 28 (97%+)
Default

Originally Posted by kufman View Post
I was only interested in using it in the center to prevent the front tires from ballooning when I get on power. It doesn't seem to do much on that front. What I am really looking for is a spool on power and free diff action off power.
glue the foams down in the tire to prevent ballooning or run tape around the phone that helps alot
$Tmoney$ is offline  
Reply With Quote
Old 05-17-2009, 11:20 AM
  #9  
Tech Champion
iTrader: (33)
 
Jason Pelletier's Avatar
 
Join Date: Jul 2007
Location: New York
Posts: 8,820
Trader Rating: 33 (100%+)
Default

I may be wrong but i think if you put softer springs in you will get more on power or accelleration (sp?) out of the corner
Jason Pelletier is offline  
Reply With Quote
Old 05-17-2009, 11:59 AM
  #10  
Tech Fanatic
iTrader: (10)
 
bradfox2's Avatar
 
Join Date: Oct 2008
Location: SRS,Az
Posts: 752
Trader Rating: 10 (100%+)
Default

run two .15s and pack it really really full of grease. I am running it like that and dont seem to have any issues. I think you might have to let it break in too. Mine seemed to balloon at first and then got better with age.
bradfox2 is offline  
Reply With Quote
Old 05-17-2009, 12:18 PM
  #11  
Tech Master
iTrader: (24)
 
Shark413's Avatar
 
Join Date: Apr 2007
Location: SoCal
Posts: 1,554
Trader Rating: 24 (100%+)
Default

I have been using the SD in my Losi 8ight-T for the past month. At first it didn't seem to being working correctly, tires would balloon under hard acceleration. I then realized I had put the 90 degree ramps in by mistake (less aggressive) and not enough grease (centrifical force had sent most of it to the outside of the diff case). So changed to 120 degree ramps, removed two springs (using only two .15mm springs) and repacked with grease. On the third time out the diff started to work much better, much less ballooning now. I am using it in the center only.


No grease


90 and 120 degree ramps
Shark413 is offline  
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service