Half a gear diff better ?

Bells · #1 28-05-2013

Tonight I decided to rebuild my sons gear diff and try a different weight oil in it , since buying it in December as a rtr we have made a few mods to it mainly mm4
It has always handled better than my kit built 210 on slipy floors ie cullingworth and batley indoors , now we are outside its the reverse my car is a lot better , my gear diff has 3000 in it and my sons has no oil just a bit of black grease and only half of would should be there ! See pic

I will be trying this on my car the next time I can get to cullingworth to race ,
Anyone got any ideas as to why this would be better on slipy floors ?

Robby · #2 28-05-2013

More than likely, being as it's so lightly lubed, it behaves more freely - kind of like the difference between running 1000wt and 5000wt oil would. The heavier the lubrication, the more the diff is going to want to lock up.

Bells · #3 28-05-2013

Quote:

Originally Posted by Robby

More than likely, being as it's so lightly lubed, it behaves more freely - kind of like the difference between running 1000wt and 5000wt oil would. The heavier the lubrication, the more the diff is going to want to lock up.

What about the shaft and 2 gears missing ? Is that like going super low on oil/resistance

Robby · #4 28-05-2013

Quote:

Originally Posted by Bells

What about the shaft and 2 gears missing ? Is that like going super low on oil/resistance

Yikes!
Didn't notice THAT.
Thought you were just showing off it using black grease.
Not sure how it didn't turn into a box of steel splinters.

Bells · #5 28-05-2013

Quote:

Originally Posted by Robby

Yikes!
Didn't notice THAT.
Thought you were just showing off it using black grease.
Not sure how it didn't turn into a box of steel splinters.

Lol maybe I should have worded it better , I'm thinking is this better than a ball diff on low traction surface ?

AfroP · #6 28-05-2013

seems the rtr kits all come with only 2 diff internal gears.
apparently the "team" run them like this, either hupo or jorn(possibly both)have been trying it in they're 410's as well but it has been known to wear the diffs out much more quickly
not an issue if your a fully sponsored driver