gticlay

iTrader: (14)

Yeah, you'll probably want to try the center gear diff. But I've had great traction with the slipper as well.

randy0025

iTrader: (11)

Here is what i would say to get for medium bite tracks.
center diff XRA364901
Composite Chassis Side Guards Medium XRA361265
Composite Rear Chassis Brace (Medium) XRA361295
Composite Front Chassis Brace (Medium) XRA361294
2.0mm Graphite Steering Brace XRA362581
Independent Servo Mount Set XRA366220
Aluminum 4 Hole Steering Plate XRA362573
XRAY Aluminum Rear Upright (Left) & (Right) XRA363352 & XRA363351

Norse

iTrader: (43)

Hey Fellas,


Concerning the 16 XB4, I noticed when switching from the slipper to the center gear diff it is really tight, being the inner motor mount button head screw will slightly rub the button head screws securing spur gear to the CD assembly. With that being an issue does anyone know of another brand of button head screws that have a lower profile head.
I have put a .2mm shim on the backside of the center diffs rear bearing which helps by slightly pushing the spur and center diff unit forward a tad. The shim combined with lower profile button head screws used on the spur gear to center diff assembly as well as the inner motor mount button screw will resolve the rubbing.

Any suggestions on lower profile button head screws would be great.

randy0025

iTrader: (11)

take a picture because i never had that issue before. i want to see if we are talking about the same screws but none of mine are touching at all since switching to the center diff. I have even switch back and forth a couple times with the 16 spec with no rubbing issues.

Norse

iTrader: (43)

I will post a pic when I get off work. Its really close thus the button head screws on the face of the center gear diffs spur gear and opposite the the spur gears button head screws in the inner motor mount button head screw. When the center gear diff is rotating the button head screws can rub the face of the inner button head screw securing the motor to the motor mount. I see on the XB4 Facebook group that this has been quit common when using a center gear diff in the 16.

If you look at your center gear diffs spur while slowly rotating it you will see how close the button head screws are to the inner button head screw motor mount screw.

jmcelroy42

iTrader: (10)

I just looked at my center diff that i have run a couple times and i can see that the very top of the button heads are shiny like they were rubbing on something, never noticed until you brought it up.

4s losi

Thanks for the info. I appreciate it. Do you know if the 12mm hexs work with this car? It comes with 14mm I t think.

randy0025

iTrader: (11)

yeah it comes with 14mm, if you want to use 12mm hexs then i would just spend the extra money and get the xray one or save the money and get exotek one. on the 1st page of this thread you will see the sizes needed for each type of wheel

QDRHRSE

iTrader: (515)

IMHO all you need is the 12mm hexes. I've found the slipper to work better when traction isn't high. I guess it depends on how medium your traction is.

Norse

iTrader: (43)

Hey JMC,

Yeah the button heads can slightly nick the button head screw holding the motor to the motor plate. The inner of the two button heads screws attaching the motor to the motor plate. Mounting the spur gear with the deepest side towards the motor seems to provide more clearance however the spur gear then moves closer to the motor which can make centering pinions to the spur a tad harder. It also really moves the edge of the spur gear really really close to the mount and Center carbon fiber top brace. Flipping the spur with the deep side against the diff creates more visual space however I noticed more rubbing of the button head screws this way.

4s losi

Cool. Thanks all

4s losi

Well I ordered the kit tonight. One more question. Since this will be my first 1/10 four wheel buggy...(I'm used to pro4 and 1/8 scale) and I'm going to run the gear center diff. I've noticed that alot of people run 50,000 - 100,000 center diff oil with the xray and other brands. This seems high to me. What would be a good starting point. Thanks again.

raved007

iTrader: (36)

Yes it works i have set of exotek 12mm F/R came from my xb4 '15 not getting xb4 '16 so i might be selling it with 3 set of tire 2.4 size

gticlay

iTrader: (14)

You meant to type 500,000 to 1,000,000 right? You probably want million weight, but maybe 500,000 on blown out tracks.

jmcelroy42

iTrader: (10)

I thought the same thing when I got mine, so I started with 300,000 and it didn't feel right, so I went up to 1,000,000 and it was great.