Oil weight for geared diff

m prigmore · **Joined:** Tue Dec 21, 2010 14:00:55 **Posts:** 20

Can anyone give me opinion on what oil weight to use with a geared diff.
I tried a gear diff this week in the finals as my ball diff started slipping. And friend let my use his geared diff to the rear. The diff had 1000wt oil and I found that the car was great going into and trought the in field but when getting on power out of faster corner the back of the car was trying to kick out(oversteer) and this made the car hard to drive. Will 2000 wt oil make the car have more traction to stop this and what would be a good starting oil for a front gear diff.
All opinion welcome.
Matt

Steve Weiss · **Posted:** Fri Feb 18, 2011 23:32:11

It seems to depened on the surface you are running on.

Most people running on asphalt tend to settle around 1000 and 2000 for carpet.

Aside from that, I know that most people need some time to adjust to how the gear diff feels compared to the standard ball diff.

Reuben Manning · **Joined:** Sun Oct 10, 2010 01:02:56 **Posts:** 28

On Carpet I found 1000 to difficult to drive coming onto power with a boosted ESC, as when the boost hit when you werent quite straight the rear would become tail happy. Where as 2000 is great. Thats Fastrax 2000cst.

I expect 1000 will be better outdoors as its more smooth and progressive on throttle, so theres less chance of it being tail happy

Browny_37 · **Joined:** Sun Nov 07, 2010 00:32:53 **Posts:** 45

sidecarphil · **Posted:** Mon Feb 21, 2011 08:29:09

i am not suprised your gear diff leaked with 50 oil in it rhis is way too thin for a gear diff

minimum i would use is 1000 but i have seen guys with 800 in and leaking a little

mine has never leaked and it has been opened at least 5 times with the same gasket used :lol:

S.A.W · **Posted:** Mon Feb 21, 2011 20:32:50

goos · **Posted:** Wed Mar 02, 2011 23:17:02

I have been running high quality lithium grease with teflon. Its around 120cst, easy to drive and very consistent. It can be found in bicycle shops, make sure you get one in a tube, not aerosol bottle.

Martin Hudy · **Posted:** Mon Mar 07, 2011 19:06:19

I would suggest:

low traction - 700
medium traction - 800-900
high traction - 1000

Browny_37 · **Joined:** Sun Nov 07, 2010 00:32:53 **Posts:** 45

Craig McPhee · **Posted:** Wed Mar 09, 2011 03:18:07

Browny_37 · **Joined:** Sun Nov 07, 2010 00:32:53 **Posts:** 45

Martin Hudy · **Posted:** Wed Mar 09, 2011 09:33:14

So, wait for Xray one, coming soon

no leaking and possibility to use standard rear drive shafts

sidecarphil · **Posted:** Wed Mar 09, 2011 12:14:42

Mastermind · **Posted:** Wed Mar 09, 2011 20:20:31

Craig McPhee · **Posted:** Thu Mar 10, 2011 01:45:45

Browny_37 · **Joined:** Sun Nov 07, 2010 00:32:53 **Posts:** 45

Mastermind · **Posted:** Mon Mar 28, 2011 00:43:23

alecladanga · **Posted:** Mon Mar 28, 2011 11:09:21

hope the gear diffs you'll be releasing are for the T2 and T3 platforms (34T and 38T)!!!

Marek Gadomski · **Posted:** Mon Mar 28, 2011 17:58:08

Ho much diff 'll cost ? :?:

YELLOWSHARK · **Posted:** Tue Mar 29, 2011 01:44:18

XRAY - Model racing cars

Oil weight for geared diff

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