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Xray XB2 2WD Buggy Thread

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Xray XB2 2WD Buggy Thread

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Old 03-26-2018, 01:24 PM   -   Wikipost
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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) or add 1.5mm carbon avid spacers



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 02-15-2019, 03:14 PM
  #5911  
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Originally Posted by Lucky777 View Post
I am a newb running 2018 xray xb2 just ordered a 19 is there any tips for the build? Thanks
Make sure you get all the stuff it says you need BEFORE you get to that step. I learned that the hard way. Also, there are a couple things listed to get that aren't in the list of things you need. Read through the instructions first.
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Old 02-16-2019, 11:47 AM
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Default Looking for

Anyone know of anybody selling a 2019 Xb4 or xb2 de In good condition
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Old 02-27-2019, 07:16 AM
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Originally Posted by bembry10 View Post
Anyone know of anybody selling a 2019 Xb4 or xb2 de In good condition
There is an Xray group on FB that regularly has cars for sale. I saw a 2019 xb2 DE the other day at a reasonable price. Check it out Team Xray Marketplace
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Old 02-27-2019, 03:34 PM
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Hi guys. Sitting here with a XB2 looking at some wore out pins and outdrives (Gear Diff). How many of you installed the yokomo diff with success? When you can almost buy two yokes to one xray its a no brainer. Thank you
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Old 03-03-2019, 03:11 PM
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Originally Posted by DHMOTORSPORTS View Post
Hi guys. Sitting here with a XB2 looking at some wore out pins and outdrives (Gear Diff). How many of you installed the yokomo diff with success? When you can almost buy two yokes to one xray its a no brainer. Thank you
I test fitted the gear diff out of my old bmax2 but it was much narrower than the original diff. I dont know if Yokomo used the same diff in the yz2 though.
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Old 03-04-2019, 07:16 AM
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Originally Posted by RaceToTheBottom View Post
I test fitted the gear diff out of my old bmax2 but it was much narrower than the original diff. I dont know if Yokomo used the same diff in the yz2 though.
Thank you. I tried a AE gear diff. Not even close for the trans case in mine. The bearings would have been on the out drives. lol
Woriking on the slipper and spur combo now. Trying to do a blinky set up.
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Old 03-10-2019, 08:13 PM
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Hi guys, I traded for a car at the track tonight and it came with the book. Seems like its the xb2 '16. Looks great.

I'm looking for some pointers here. What is the difference between the 16 and 17 and then the 18. Its the ce model and I only race carpet, so I think I can make it work.

Thanks!
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Old 03-17-2019, 10:31 PM
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Default Rearward steering linkage

Xra322572 is the part number for the rearward steering linkage , Has anybody tried it and what were your thoughts?
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Old 03-18-2019, 06:18 AM
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Hey guys, what is the gearing used for stock racing? I have a 17.5 monster max motor on it. Has the slipper eliminator and a 72t spur. I tried a bunch of different pinions and couldn't get out of the motor what I did on my b6.1. My b6.1 with that motor was noticebly faster. The only change I had the b6 was run with a XR10 pro where the Xray has a justock in it. I imagine they perform the same and that wouldn't cause the difference. So I'm thinking it's the gearing. Thanks!
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Old 03-19-2019, 10:47 AM
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There is a big difference in those esc's. The just stock is what 60 amp and the xr10 pro is either 100 to 160 amp? That's a lot of punch and power that you are losing in that stock motor. The b6.1 and the xb2 have almost identical internal gearing.
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Old 03-19-2019, 12:43 PM
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Originally Posted by bembry10 View Post
Xra322572 is the part number for the rearward steering linkage , Has anybody tried it and what were your thoughts?
I'd like to know the same. I have bought them, but am not sure on how to install them. No instructions.
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Old 03-19-2019, 01:08 PM
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Originally Posted by jpcopeland1 View Post
I'd like to know the same. I have bought them, but am not sure on how to install them. No instructions.
Maybe you'll find this picture helpful:

https://www.teamxray.com/teamxray/sh...0f3bd49e22d2e6
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Old 03-19-2019, 01:33 PM
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Originally Posted by mes View Post
Maybe you'll find this picture helpful:

https://www.teamxray.com/teamxray/sh...0f3bd49e22d2e6
i saw that and thatís how I built it. Will have to see if I notice any difference. Seems almost the same as stock.
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Old 03-20-2019, 05:01 AM
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Originally Posted by bgymr View Post
Hey guys, what is the gearing used for stock racing? I have a 17.5 monster max motor on it. Has the slipper eliminator and a 72t spur. I tried a bunch of different pinions and couldn't get out of the motor what I did on my b6.1. My b6.1 with that motor was noticebly faster. The only change I had the b6 was run with a XR10 pro where the Xray has a justock in it. I imagine they perform the same and that wouldn't cause the difference. So I'm thinking it's the gearing. Thanks!
There should be very little difference in performance between a pro ESC and a stock spec ESC when running stock motors. Stock motors shouldn't be pulling 60 amp loads.

As far as gearing ... probably depends on track size and whether the motor is torque or RPM based. If I had to guess the gearing window would be 5.6-6.3.
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Old 03-20-2019, 06:51 AM
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2.2mm gearbox spacer installed and -4mm motor plate.

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