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R/C Tech Forums Thread Wiki: 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 11-24-2015, 11:58 AM   #196
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Default Setup kit

Hi Bent,

Does the kit includes a basic carpet setup?

Thnx
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Old 11-24-2015, 12:02 PM   #197
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Quote:
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I have to say lots of your posts collected from forums are very useful, either concerning Xray or Orca.
same here

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Old 11-24-2015, 12:05 PM   #198
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Bent,

Can you post Malin's setup from EOS this last weekend?

Were you running all hard parts? Options? Springs, oils, etc?


I have had my XB2 preordered for months but need to get a spare parts order in before it ships. I run on high bite carpet and med-high to high bite astro.

Thanks,

Troy
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Old 11-24-2015, 01:31 PM   #199
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PLEASE and I mean PLEASE!!! Make some slipper pads for the new 3 pad slippers!
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Old 11-24-2015, 02:51 PM   #200
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Quote:
Originally Posted by billdelong View Post
Which one are you going to get? Carpet version now, or Dirt version later?
Any chance I can test drive it at Thornhill when you get it ready?
I'm on the fence between the TLR 22-3.0 and the XB2

Tyler's 3.0 was amazing at the track last weekend, but my next big questions on the dirt edition are:





The track I race at appears that it might need a hybrid of options between the Carpet/Dirt editions, ha!

It would be nice to get pricing between both and to calculate the difference to see which edition is more economical for switching out desired parts between versions.
Bill, I'm waiting on the dirt edition. I don't think the traction is high enough where we race for the carpet edition.
I suspect I'll be ordering a set of carbon towers for it too, I'm not a fan of composite towers.
You're more than welcome to try it out once I get it.
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Old 11-24-2015, 03:18 PM   #201
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Does anyone else find the ads a bit 'creepy'? Might just be me. Men in weird suites sitting in gold chairs. It's a bit 'Willy Wonka'
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They're European. Much more refined tastes in fashion compared to most sloppy Americans.
I thought the exact opposite. I looked at those pictures and thought "look at those guys in their suits... total pimps!"

I am super excited about this kit. I have been looking closely at the losi 3.0, and now this here XB2. I have a couple questions I didn't see addressed here in the thread... or maybe it is common knowledge stemming from the 4wd.

1. Does the kit's wheel's offests match B5/RB6 wheels? Will I be able to run AE wheels, or will we have to buy Xb2 specific wheels?

2. Low tooth spurs... being a 17.5 guy, are there ~69 tooth spurs available?
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Old 11-24-2015, 03:25 PM   #202
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@Capt. - You can run AE or TLR wheels. You just might need different offset hexes to get the exact same track width depending on the brand. (+/-1mm)

I'll dig up the offset measurements I ook and post them up when I can.
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Old 11-24-2015, 03:40 PM   #203
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Originally Posted by punkracer24 View Post
@Capt. - You can run AE or TLR wheels. You just might need different offset hexes to get the exact same track width depending on the brand. (+/-1mm)

I'll dig up the offset measurements I ook and post them up when I can.
That will be great! Thanks for posting up that info. What about spurs?
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Old 11-24-2015, 04:50 PM   #204
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Originally Posted by pickle311 View Post
Bill, I'm waiting on the dirt edition. I don't think the traction is high enough where we race for the carpet edition.
I suspect I'll be ordering a set of carbon towers for it too, I'm not a fan of composite towers.
You're more than welcome to try it out once I get it.
Thanks man, that's the exact setup I was thinking of too... possibly with the hard arms on the front and medium arms on the rear maybe? Call it the "Clay Edition"... LOL

I guess the big question is would it be more cost effective to buy the Carpet Edition + Dirt Edition Gear Box

OR...

Dirt Edition + Carbon Towers

Assuming Dirt Edition comes with a gear diff and both Medium + Hard plastic parts.

Talk about lots of options to consider eh?
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Old 11-24-2015, 04:53 PM   #205
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Originally Posted by billdelong View Post
Thanks man, that's the exact setup I was thinking of too... possibly with the hard arms on the front and medium arms on the rear maybe? Call it the "Clay Edition"... LOL

I guess the big question is would it be more cost effective to buy the Carpet Edition + Dirt Edition Gear Box

OR...

Dirt Edition + Carbon Towers

Assuming Dirt Edition comes with a gear diff and both Medium + Hard plastic parts.

Talk about lots of options to consider eh?
I think better to get the carpet edition because you have medium and hard plastic parts then order dirt edition gear box
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Old 11-24-2015, 05:01 PM   #206
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Assuming Dirt Edition comes with a gear diff and both Medium + Hard plastic parts.
It looks like the dirt edition comes with a ball diff, and just the medium plastics. The carpet edition comes with a gear diff and both sets of arms (and a front wing). I wonder why they are the same price?
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Old 11-24-2015, 06:28 PM   #207
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The carpet didn't look like it would come but two sets of plastics, wait for the release we will know then what's in the box.
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Old 11-24-2015, 07:10 PM   #208
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we will see. The dirt edition is still being finalized. I am sure RCAmerica will release the details as soon as they can with pricing and etc.

The nice thing though, is with the carpet edition, RCAmerica is including the Ball Diff so you don't have to wait. Thats worth the $60 alone. If you race on something with medium to high traction I think you would be fine with the carpet edition, just run the medium plastics that come IN THE BOX!
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Old 11-24-2015, 11:43 PM   #209
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Quote:
Originally Posted by Troy Mckune View Post
Bent,

Can you post Malin's setup from EOS this last weekend?

Were you running all hard parts? Options? Springs, oils, etc?


I have had my XB2 preordered for months but need to get a spare parts order in before it ships. I run on high bite carpet and med-high to high bite astro.

Thanks,

Troy
I plan to post it on her page during the day today

We ran 2x1.6 and 2x1.7 pistons (drilled stock pistons), graphite arms, under LiPo weight from Xray, brass bulkhead, alu. rear camber link mount.
Rest of the parts where stock Carpet Edition parts

Bent
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Old 11-24-2015, 11:44 PM   #210
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Quote:
Originally Posted by suby723 View Post
PLEASE and I mean PLEASE!!! Make some slipper pads for the new 3 pad slippers!
What do you mean ?

The slipper pads are the same as on the XB4.

Bent
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