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 03-18-2016, 05:08 PM   #2026
Tech Fanatic
 
Join Date: Nov 2011
Location: Connecticut
Posts: 850
Trader Rating: 9 (100%+)
Default

upstop shims on nate jaskot's clubrace setup at smactrac: looks like he used 3mm downstop shims rather than the stock 1mm stock shims. but it doesn't say what he used on the upstop shims. would u guys recommend putting the 1mm shims for the upstop to have a similar total downstop and upstop length?

thanks
__________________
xb2, xb4, RC10 re-release WC, sc5m, vintage rc10's
Eaglesrx is offline   Reply With Quote
Old 03-18-2016, 05:09 PM   #2027
Tech Master
 
xrayracer1's Avatar
 
Join Date: Feb 2013
Location: Under your bed.
Posts: 1,179
Trader Rating: 1 (100%+)
Default

The plastic washers i made for holding in the pins on my DE.

[IMG][/IMG]
__________________
Gavin.

Converting nitro to electric is utter blasphemy.
xrayracer1 is offline   Reply With Quote
Old 03-18-2016, 06:03 PM   #2028
Suspended
 
Join Date: Jan 2011
Posts: 4,124
Trader Rating: 61 (100%+)
Default

Gavin, can you post more pics of your car?
__________________
Best Avatar on rc-tech
Socket is offline   Reply With Quote
Old 03-18-2016, 06:24 PM   #2029
Tech Master
 
xrayracer1's Avatar
 
Join Date: Feb 2013
Location: Under your bed.
Posts: 1,179
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Socket View Post
Gavin, can you post more pics of your car?
Here you go

[IMG][/IMG]

[IMG][/IMG]
__________________
Gavin.

Converting nitro to electric is utter blasphemy.
xrayracer1 is offline   Reply With Quote
Old 03-18-2016, 06:27 PM   #2030
Tech Master
 
13Maschine's Avatar
 
Join Date: Jul 2012
Location: Los Angeles, CA
Posts: 1,552
Trader Rating: 1 (100%+)
Send a message via Skype™ to 13Maschine
Default

Looks good!
__________________
SoCal R/C Privateer, find me at either OCRC or SCVRC!
My JUNSI POWERED Rides: Xray XB2 CE, Hot Bodies D413, Kyosho RB6, HobbyWing Xerun 3.1, Futaba 4PX, Futaba and MKS Servos, Speed Passion Hirosaka and HW V10 Powerplants!
First car Kyosho Pegasus and RC10CE! More than 25 years Racing! Happy to lend a helping hand. Just ask! :)
13Maschine is offline   Reply With Quote
Old 03-18-2016, 06:28 PM   #2031
Suspended
 
Join Date: Jan 2011
Posts: 4,124
Trader Rating: 61 (100%+)
Default

Car looks good. Body off pics?
__________________
Best Avatar on rc-tech
Socket is offline   Reply With Quote
Old 03-18-2016, 06:29 PM   #2032
Tech Fanatic
 
fast-ho-cars's Avatar
 
Join Date: Sep 2003
Location: it's a dry heat
Posts: 931
Trader Rating: 2 (100%+)
Default

anyone know the spring rates on the Xray buggy shock springs, i have both stock and the extra option springs (did not get progressives per RCA advice)
fast-ho-cars is offline   Reply With Quote
Old 03-18-2016, 06:43 PM   #2033
Suspended
 
Join Date: Jan 2011
Posts: 4,124
Trader Rating: 61 (100%+)
Default

Quote:
Originally Posted by fast-ho-cars View Post
anyone know the spring rates on the Xray buggy shock springs, i have both stock and the extra option springs (did not get progressives per RCA advice)
I do not have numbers. I have access to a spring tool, but like a motor dyno, it's numbers are only comparable to one's its measured.

I'm going to purchase the Losi Low Frequency spring kit and use those. Going to test fit them this week and see what spring cups I need.

Edit: IIRC the "optional" springs are all stiffer. Which I'm not convinced you'll need at hobbytown.
__________________
Best Avatar on rc-tech
Socket is offline   Reply With Quote
Old 03-18-2016, 06:51 PM   #2034
Tech Master
 
xrayracer1's Avatar
 
Join Date: Feb 2013
Location: Under your bed.
Posts: 1,179
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Socket View Post
Car looks good. Body off pics?
The wires look like a birds nest but ill fix that later.

[IMG][/IMG]

[IMG][/IMG]
__________________
Gavin.

Converting nitro to electric is utter blasphemy.
xrayracer1 is offline   Reply With Quote
Old 03-18-2016, 06:54 PM   #2035
Tech Fanatic
 
fast-ho-cars's Avatar
 
Join Date: Sep 2003
Location: it's a dry heat
Posts: 931
Trader Rating: 2 (100%+)
Default

once i get my car running, i will start with stock springs, definitely will be curious on those TLR springs work for you
fast-ho-cars is offline   Reply With Quote
Old 03-18-2016, 07:38 PM   #2036
Tech Master
 
Join Date: Apr 2014
Location: Somewhere
Posts: 1,220
Trader Rating: 32 (100%+)
Default

Just finished my Dirt Version.
raved007 is offline   Reply With Quote
Old 03-18-2016, 07:41 PM   #2037
Tech Master
 
xrayracer1's Avatar
 
Join Date: Feb 2013
Location: Under your bed.
Posts: 1,179
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by raved007 View Post
Just finished my Dirt Version.
What battery strap are you using?
__________________
Gavin.

Converting nitro to electric is utter blasphemy.
xrayracer1 is offline   Reply With Quote
Old 03-18-2016, 07:46 PM   #2038
Tech Master
 
Join Date: Apr 2014
Location: Somewhere
Posts: 1,220
Trader Rating: 32 (100%+)
Default

Quote:
Originally Posted by xrayracer1 View Post
What battery strap are you using?
EXOTEK battery strap.
raved007 is offline   Reply With Quote
Old 03-18-2016, 07:48 PM   #2039
Tech Regular
 
team green's Avatar
 
Join Date: Dec 2005
Location: nor-cal
Posts: 257
Trader Rating: 7 (100%+)
Default

looks like the Exotex strap I have the same one.

__________________
I will never go back to brushed motors or NIMH's!!!!
Awesomatix EVO2
Tamiya TA07 Pro
Associated B6
TLR 22-4 2.0
team green is offline   Reply With Quote
Old 03-18-2016, 07:48 PM   #2040
Tech Master
 
xrayracer1's Avatar
 
Join Date: Feb 2013
Location: Under your bed.
Posts: 1,179
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by raved007 View Post
EXOTEK battery strap.
Cool thanks. 👍
__________________
Gavin.

Converting nitro to electric is utter blasphemy.
xrayracer1 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 02:29 AM.


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