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R/C Tech Forums Thread Wiki: Official Xray XB2 2WD Buggy Thread
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Last edit by: dgrobe2112
Instruction manuals: (C/O BentKa)

Xray XB2 Carpet Edition Instruction Manual
http://www.teamxray.com/xb2/2016/dow...ual_v2_low.pdf

Xray XB2 Dirt Edition Instruction Manual
http://www.teamxray.com/xb2/2016/dow...w.pdf?update=2

BentKa: Carpet Edition 4 gear to 3 gear laydown conversion parts:
  • Gearbox #323014
  • Motorplate #324012
  • 36T idler gear #324236
  • Brace for waterfall #324031


Socket: Bodies Available:

Xray has two OEM bodies, the .75mm and the .50mm light weight:
light weight: https://www.amainhobbies.com/xray-xb...329701/p492942

OEM .75mm: https://www.amainhobbies.com/xray-0....329700/p477762

Also, I've fitted the yz2 body, both the light and regular fit fine, just make your own cut lines:
https://www.amainhobbies.com/yokomo-...z2-101/p417674


[i] J Concepts S2 Body [i]


Penguin Racing makes a high grip body that fits the DE and CE:
http://www.ebay.com/itm/X-Ray-Xb2-Hi...oAAOSw1S9WewHV



Socket: Wheel fitment:

According to some, you'll require different offset rear hexes to use B5M wheels. According to my Hudy setup board, B5M wheels are the same offset. I measured the overall width of the car with XB2 wheels, and then again with B5M wheels, same measurement.

On the front, B5M wheels were 1.5mm wider. Xray offers hexes to reduce width -.75 on each side, or you could spend 3-5 minutes and sand your OEM hexes down .75mm.

edit by dgrobe2112
here are the hubs for losi and AE

for AE Front 365354 -0.75
for Losi rear 365358 +3.00 (4 stripe)
for AE rear 365359 +3.75 (5 stripe)



Socket: Flex and the XB2:

Flex screws are as follows:

Plastic bulkhead between motor and waterfall. Can remove screw in chassis, or remove bulkhead altogether.

Waterfall has 4 screws, can remove the inner two or outer two. IIRC, removing the inner two provides more flex, and thus more bite.

Removing the battery brace. This gives a tremendous amount of flex on the middle of the car, and can sometimes be inconsistent. I do this for outdoor racing on low bite. I like the feel over the 4 gear in 17.5 racing, since the 4 gear will take some snap away off the corner.

Rear C block - has inner and outer screws. I haven't played with this, as it's a crucial pivot point of the car.

Medium arms and towers -> I don't believe the carpet car has the rear medium tower available, however the DE DOES have an optional hard part. I think the hard parts are more consistent, especially when it gets hot (90+ degrees F). However, the medium parts do NOT break unless you're severely talented. They also don't wear out.



Socket: Avid/Schelle Slipper mod:

Credit to WillS, Matt Trimmings, and myself for figuring this out months ago.

Parts you'll need:

B5M V2 3gear compatible top shaft.
TKO Special 5x13x5 bear OR 5x13x6 bearing Either can work. This replaces the spur side bearing on the top shaft.
5mm shims, same shims used in 1/8th scale clutch bells. Look for protek .1mm and .2mm kit.
Avid or Schelle b5m top shaft kit, with spur gears of your choosing. (DE can't handle a 69, the CE can)

Shimming: You'll need to install the bearing in the front portion of the removable piece for the shaft. Make sure the bearing is pushed all the way in. With the TKO bearing, you'll need to shim approximately 1.4mm on the front side of the top shaft. Roughly .3-.5mm with the other bearing. This is a "feel" and tolerance setting. I urge you to watch videos about setting clutch bell play in 1/8th scale to get an idea of what yield you want for end play. Too tight, it'll eat bearings.

Outside of trans case: Use Avid/Schelle top shaft spacer plus .2mm shim to offset slipper from motor plate perfectly. Install slipper as instructed, and use Avid/Schelle spring and XB2 slipper nut.

- NEW - Schelle now sells Xb2 Topshafts. They include a spacer, so no need for shims in gearbox, and comes with the smaller bearing. Both methods work.

Socket: Yokomo Differential or MIP pucks:

Credit to: WillS for figuring out pucks, and as well fitting the Losi 22 diff with the same mods.

Parts needed: Yokomo Bmax2 or YZ2 complete diff OR Mip PUCKS outdrives
Xb2 diff gear
Bmax2 V3 Worlds rear dog bones, or Bmax 2 pucks dog bones
You'll use XB2 axles, and will require no other mods for the axles or dog bones.
You'll need .2mm outdrive/diff shims. Shim approximately .5mm on each side of the diff, behind the bearings. The top portion of the transmission is what "sets" the diff in place, not the bottom half. A little play back and forth is fine, the stock diff has some play from the factory.

dgrobe2112: CE to DE conversion:
along with the parts needed.. you MUST have these following hardware, or it wont work

https://www.teamxray.com/xb2/2016/do...conversion.pdf

(3) XRAY 902340 M3x40 button head screws. these are the screws that mount the motor mount to the tranny
(4) XRAY 903322 M3x22 counter sunk screws. these are for the rear diff case, to mount to the chassis. i think i used some M3x18 and they worked ok.

Socket: Best method for setting up the XB2 ball diff:

The XB2 diff is stellar when setup correctly. The spring is too short and soft, allowing the diff to slip. You'll need to glue the rings to the outdrives with just a drop of CA, then add a 1mm shim between the spring and the outdrive. This preloads the spring and stops the diff from slipping so easily.

OR, you can run the AE diff spring, which is both slightly longer, and stiffer. The overwhelming issue is the stock spring allows the nut to bottom out on the outdrive before the diff is tight enough.

This shim:
https://www.amainhobbies.com/xray-al...a303122/p12070

This diff spring (don't need a shim, then.)

https://www.teamassociated.com/parts...thrust_spring/

Functional Aftermarket parts: (Not just bling!)

Servo Horn: (The B5M sized horns are too short to get full throw)
https://www.amainhobbies.com/protek-...800-bk/p273496


Socket: Exotek has a full suite of parts, some bling, some not. Here's a list (all fit DE and CE, unless otherwise noted):

Titanium front axles: http://www.exotekracing.com/xb2-titanium-front-axles-2/

Rear Hanger, HD (Adds 4 grams): http://www.exotekracing.com/xb2-rear...75-heavy-duty/

Brass C block, 18 grams added: http://www.exotekracing.com/xb2-rear...-brass-weight/

Alloy front camber mount: http://www.exotekracing.com/xb2-fron...er-mount-7075/

Carbon Fiber Chassis: http://www.exotekracing.com/xb2-carb...m-plate-2-5mm/

Alloy rear hubs:http://www.exotekracing.com/xb2-allo...ub-set-2-7075/

Alloy servo mounts, allow for use of LP servo:http://www.exotekracing.com/xb2-xb4-...-alloy-1-pair/

Titanium shock mounts: http://www.exotekracing.com/xb2-xb4-...shock-posts-2/

Slipper Eliminator: http://www.exotekracing.com/xb2-direct-spur-mount/
Xray eliminator is #324100

dgrobe2112: 2016-2017 new 3 gear laydown
Gearbox #323014
Motor plate #324012
36T idler gear #324236
Brace for waterfall #324031

dgrobe2112: Xray Spring Rate Conversion:
front C WHT
368174 2 str 0.65-0.85 3.71-4.85

358184 2 dot 0.65 3.71
368185 3 dot 0.72 4.11
368186 4 dot 0.80 4.57


Rear
368273 2 str 0.35-0.45 2.00-2.57

368284 1 Dot 0.35 2.00
368285 2 Dot 0.40 2.28
368286 3 Dot 0.45 2.57
368287 4 Dot 0.50 2.86

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Old 10-09-2016, 10:55 AM   #3811
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Brass RR hanger. Probably not the best solution but i learned this was a side effect of having one. Put one in for a lower bite track. I learned when taking to a high bite track and not taking it off that an unintended side effect was swinging around tight 180's quite well.... It's Xray version and only about 12 grams btw.
Quote:
Originally Posted by RobsRacin View Post
Finally have my car really good, other than needing just a smidge more steering for our tight turf track. The car is perfect through the sweepers and lesser angle corners, but just doesnt have enough in the 180's and I have to stab the brake to get the car to rotate. Would a longer link up front help that at all? Im running center on the tower, and inside on the hub(inside as towards the car and not towards the wheel). Im not sure if I want to try to loosen the rear up as if it gets any looser in the rear it may want to step out on the sweeper.

Last edited by JAE; 10-09-2016 at 11:11 AM.
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Old 10-09-2016, 11:54 AM   #3812
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Quote:
Originally Posted by JAE View Post
Brass RR hanger. Probably not the best solution but i learned this was a side effect of having one. Put one in for a lower bite track. I learned when taking to a high bite track and not taking it off that an unintended side effect was swinging around tight 180's quite well.... It's Xray version and only about 12 grams btw.
Ill have to try it, thanks for the tip. I have the battery weight in, not sure if taking it out might free up the rear just a touch without allowing it to be too loose for the faster sections
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Old 10-09-2016, 06:59 PM   #3813
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Default 2016 CE Advice

I got a deal on a new 2016 CE to run on high bite carpet. Looking for any suggestions on anything that may improve performance/tuning aids for the stock buggy. For ex. different pistons, stock springs too soft, steering rack issues, longer shock eyelets....etc.....
My car won't be arriving until the end of the week, and making sure I have some options during tuning this weekend. So need to put a order in early if there is something that is a must, or is preferable
Thanks
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Old 10-09-2016, 07:16 PM   #3814
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[QUOTE=Yodah;14697640]I got a deal on a new 2016 CE to run on high bite carpet. Looking for any suggestions on anything that may improve performance/tuning aids for the stock buggy. For ex. different pistons, stock springs too soft, steering rack issues, longer shock eyelets....etc.....
My car won't be arriving until the end of the week, and making sure I have some options during tuning this weekend. So need to put a order in early if there is something that is a must, or is preferable
Thanks[/QU

What kind of deal did you get it for
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Old 10-09-2016, 07:38 PM   #3815
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[QUOTE=billsharp34;14697662]
Quote:
Originally Posted by Yodah View Post
I got a deal on a new 2016 CE to run on high bite carpet. Looking for any suggestions on anything that may improve performance/tuning aids for the stock buggy. For ex. different pistons, stock springs too soft, steering rack issues, longer shock eyelets....etc.....
My car won't be arriving until the end of the week, and making sure I have some options during tuning this weekend. So need to put a order in early if there is something that is a must, or is preferable
Thanks[/QU

What kind of deal did you get it for
Wow, Yours on Ebay.....I recognize the name
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Old 10-10-2016, 06:15 AM   #3816
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[QUOTE=Yodah;14697689]
Quote:
Originally Posted by billsharp34 View Post

Wow, Yours on Ebay.....I recognize the name
had a feeling you were going to say that shipping it out now.
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Old 10-10-2016, 06:22 AM   #3817
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[QUOTE=billsharp34;14697990]
Quote:
Originally Posted by Yodah View Post

had a feeling you were going to say that shipping it out now.
Yeah Thanks!, I am really looking forward to it!
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Old 10-10-2016, 06:54 AM   #3818
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[QUOTE=Yodah;14698002]
Quote:
Originally Posted by billsharp34 View Post

Yeah Thanks!, I am really looking forward to it!
it has schelle 1.6 and 1.7 pistons in the shocks so you know added bonus for you
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Old 10-10-2016, 09:53 AM   #3819
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Quote:
Originally Posted by RobsRacin View Post
Ill have to try it, thanks for the tip. I have the battery weight in, not sure if taking it out might free up the rear just a touch without allowing it to be too loose for the faster sections
A lighter car would in theory would be more nimble on high bite. I used to use a battery weight in my B6, but took it out cause it made the steering lazy. I instead played with battery placement. If you need steering, weight forward is really the only way to get it.
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Old 10-10-2016, 04:59 PM   #3820
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Anyone having any trouble with the 81 spur on the XB2 rubbing on the body? Any solutions?
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Old 10-11-2016, 08:04 AM   #3821
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there are solutions out there.. some guys made a guard out of lexan, others made it out of 3d printed material.
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Old 10-12-2016, 08:13 AM   #3822
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For those of you wondering about the weight difference of the 4 gear laydown gearbox and the new 3 gear laydown:





Parts needed to convert XB2 CE from a 4 gear laydown to a 3 gear setup:
  • Gearbox #323014
  • Motorplate #324012
  • 36T idler gear #324236
  • Brace for waterfall #324031

Bent

Last edited by BentKa; 10-12-2016 at 08:28 AM.
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Old 10-12-2016, 08:50 AM   #3823
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The new updated '17 Xray XB2 Carpet Edition have already been shipping to distributors and will be available shortly.



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Old 10-13-2016, 10:17 AM   #3824
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New XRAY XB2C’17 Online Now

The new 1/10 off-road RC racing car XRAY XB2C’17 is now disclosed in a detailed presentation at:

https://teamxray.com/xb2c/2017/en/

2017 All-new Features:
  • All-new motor position
  • All-new gear box
  • All-new gear box gears 36T
  • All-new motor plate
  • All-new rear suspension holder
  • All-new shock pistons
  • Increased steering
  • Increased traction
  • Improved high-speed stability
  • Improved reliability




Motor Position:

To increase traction, steering and high-speed stability, the motor position was changed from left to right position. This new position achieves a different motoric moment which improves handling in most typical track conditions.




Gear Box:

The lightweight, tiny gear box has a new internal design, accommodating a new 3-gear configuration as a result of the new right-side motor position.




Gear Box Gears:

With the all-new right side motor position and new gear box, the internal gears of the gear box are also new. The new large 36T gear – which fits the new 3-gear configuration – is moulded from premium graphite composite to ensure maximum life, high strength, and minimal weight.




Motor Plate:

The black-coated Swiss 7075 T6 aluminum motor plate has a new design to accommodate the new right-side motor position.
The motor plate holds the slipper clutch assembly as well as the gear box, and features an adjustable motor plate position. To reinforce the assembly, the motor plate is connected to the upper brace mount via a motor plate brace.




I.S.S.TM Suspension Holders:

To improve reliability and strength the Swiss 7075 T6 aluminum suspension holders were reinforced and strengthened.
The aluminum suspension holders feature Integrated Suspension Settings (I.S.S.™) which allows for quick & easy suspension geometry set-up.
Using eccentric suspension bushings – which are inserted into Swiss 7075 T6 aluminum suspension blocks – as well as additional shims and turnbuckles, the XB2 suspension geometry can be completely adjusted:
• camber
• toe-in
• rear roll-center
• anti-squat
• track-width




Shock Pistons:

Shock pistons are made from Delrinฎ and are molded using ultra-high precision moulds. All-new 2-hole pistons (1.6mm and 1.7mm holes) are now included in the set.


Last edited by BentKa; 10-13-2016 at 10:48 AM.
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Old 10-13-2016, 11:12 AM   #3825
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TAKE MY MONEY
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