R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

    Hide Wikipost
Old 12-26-2016, 07:51 PM   -   Wikipost
R/C Tech Forums Thread Wiki: Official Xray XB2 2WD Buggy Thread
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
 
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

Print Wikipost

Like Tree23Likes
Reply
 
Thread Tools Search this Thread
Old 05-12-2016, 07:07 AM   #3031
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by MikeR View Post
Hi All,

New HD hangers are in!
what issue does this fix again?
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 05-12-2016, 09:12 AM   #3032
Tech Elite
 
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,030
Trader Rating: 33 (100%+)
Default

Quote:
Originally Posted by lyons238 View Post
what issue does this fix again?
lol.. not sure if its a joke reply.. but.. the stock hangers.. some people are having breakage issues where the screws go into the hanger.. being too thin..
__________________
Daniel Grobe
----------------------
Sponsors:
Proline Racing / RC America / Xray
dgrobe2112 is offline   Reply With Quote
Old 05-12-2016, 11:09 AM   #3033
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by dgrobe2112 View Post
lol.. not sure if its a joke reply.. but.. the stock hangers.. some people are having breakage issues where the screws go into the hanger.. being too thin..
not a joke i just got the XB2. is it just the RR hanger that has the issue or both RF and RR?

i also saw people raising the hangers thats why i wasnt sure what the issue was.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 05-12-2016, 11:19 AM   #3034
Tech Elite
 
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,030
Trader Rating: 33 (100%+)
Default

yes.. sofar.. just the RR hanger.. i personally havent had the issue.. nor has any of the XB2's locally.. there are 5 here.. so..
__________________
Daniel Grobe
----------------------
Sponsors:
Proline Racing / RC America / Xray
dgrobe2112 is offline   Reply With Quote
Old 05-12-2016, 12:18 PM   #3035
Tech Elite
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,641
Trader Rating: 27 (100%+)
Default

Quote:
Originally Posted by lyons238 View Post
not a joke i just got the XB2. is it just the RR hanger that has the issue or both RF and RR?

i also saw people raising the hangers thats why i wasnt sure what the issue was.
If you are running the DE, get the AE diff spring for the ball diff...
__________________
XRAY / RCAMERICA
JCONCEPTS
RCSHOX
Mikes Hobby Shop
symmetricon is offline   Reply With Quote
Old 05-12-2016, 01:00 PM   #3036
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by symmetricon View Post
If you are running the DE, get the AE diff spring for the ball diff...
CE, carpet only but thanks!

just ordered the following upgrades;

- exotek RR hanger
- exotek rear hubs
- alum front and rear roll centers
- alum front arm mount
- schelle shock pistons
- alum steering plate (are yall running just the steering plate and not the arms?)
- alum driveshaft collars
- roll bar
- hudy alum servo horn
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 05-12-2016, 01:54 PM   #3037
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,760
Trader Rating: 26 (100%+)
Default

sounds like a B5m build
__________________
JAE
JAE is online now   Reply With Quote
Old 05-12-2016, 02:03 PM   #3038
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by JAE View Post
sounds like a B5m build
why because the alum? this is a dedicated carpet car so imo the alum is worth it
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 05-12-2016, 02:11 PM   #3039
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,760
Trader Rating: 26 (100%+)
Default

Binding Issues. My transmission is not spinning freely in a used CE I just purchased. Anyone experience this? Wondering if it is a bent topshaft or any bearings...

Anyone experience this, and what replacement bearings is everyone using? Are other brands acceptable ? tx
__________________
JAE
JAE is online now   Reply With Quote
Old 05-12-2016, 04:44 PM   #3040
Tech Master
 
todb's Avatar
 
Join Date: Apr 2002
Location: Tacoma, Wa
Posts: 1,442
Trader Rating: 57 (100%+)
Send a message via AIM to todb
Default

Are you spinning just the transmission? Or are the universals still in the outdrives. If the universals are still in, check the bearings in the hubs. They take a lot of abuse.
__________________
OVA Neo. HW, Motiv.
Orange is faster.
todb is offline   Reply With Quote
Old 05-12-2016, 11:37 PM   #3041
Tech Elite
 
B00t13g's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2012
Location: Houston, TX
Posts: 2,041
Trader Rating: 9 (100%+)
Default

Quote:
Originally Posted by JAE View Post
Binding Issues. My transmission is not spinning freely in a used CE I just purchased. Anyone experience this? Wondering if it is a bent topshaft or any bearings...

Anyone experience this, and what replacement bearings is everyone using? Are other brands acceptable ? tx
Avid.
__________________
Mackenzie Meyercord
Rc America, Xray, MOTIV, Avid, Team EAM, Apex Rc Pro Shop, Pro Spec USA, Sanwa, RSD
B00t13g is offline   Reply With Quote
Old 05-13-2016, 05:16 AM   #3042
Tech Elite
 
seth556's Avatar
 
Join Date: May 2005
Location: Orlando, FL
Posts: 2,202
Trader Rating: 42 (100%+)
Default

Quote:
Originally Posted by JAE View Post
Binding Issues. My transmission is not spinning freely in a used CE I just purchased. Anyone experience this? Wondering if it is a bent topshaft or any bearings...

Anyone experience this, and what replacement bearings is everyone using? Are other brands acceptable ? tx
Check that the diff cover is properly seated on the transmission housing, other than that just check the bearings. If I take the pinion off my motor I can spin the drivetrain and it will keep spinning on it's own for a few seconds, that's with grease on the tranny gears, normal bearings, etc.
seth556 is offline   Reply With Quote
Old 05-13-2016, 06:04 AM   #3043
Tech Elite
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,641
Trader Rating: 27 (100%+)
Default

Quote:
Originally Posted by JAE View Post
Binding Issues. My transmission is not spinning freely in a used CE I just purchased. Anyone experience this? Wondering if it is a bent topshaft or any bearings...

Anyone experience this, and what replacement bearings is everyone using? Are other brands acceptable ? tx
No binding in either my DE or CE...
__________________
XRAY / RCAMERICA
JCONCEPTS
RCSHOX
Mikes Hobby Shop
symmetricon is offline   Reply With Quote
Old 05-13-2016, 07:02 AM   #3044
Tech Elite
 
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,030
Trader Rating: 33 (100%+)
Default

Avid Bearings..
__________________
Daniel Grobe
----------------------
Sponsors:
Proline Racing / RC America / Xray
dgrobe2112 is offline   Reply With Quote
Old 05-13-2016, 07:22 AM   #3045
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by JAE View Post
Binding Issues. My transmission is not spinning freely in a used CE I just purchased. Anyone experience this? Wondering if it is a bent topshaft or any bearings...

Anyone experience this, and what replacement bearings is everyone using? Are other brands acceptable ? tx
loosen the screws holding it together!!!

its not the bearings, however since you may have ran it too tight and binding you may have ruined the bearings. i replace mine with the stock bearings from amain.

i learned this lesson myself both with the XB4 and XB2, anything like the transmission keep just snug. the xray plastics are good, they will stay tight even at just snug pressure, do not over tighten.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 04:57 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net