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 03-29-2016, 07:40 PM   #2311
Tech Fanatic
 
fast-ho-cars's Avatar
 
Join Date: Sep 2003
Location: it's a dry heat
Posts: 938
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by EricW View Post
My son has an XB2 but I can't remember, can that battery be moved forward more than it is in this picture?
Official Xray XB2 2WD Buggy Thread

on my DE i used a LP Savox servo, that made plenty of room, my 461 AirT receiver is small but not as small as some run, ESC is a Orion r10 pro which is about same size as Reedy, HW, LRP, comparable ESC's.

i still have the foam, battery mount posts, top battery plate. i have the option to move the pack forward. even if i had a larger servo there would be enough room

i agree with Socket, i can't see no reason to run the pack forward on a loose to med traction track. if i had to run it forward it would probably on some hi traction clay or carpet, imo it would be CE time
fast-ho-cars is offline   Reply With Quote
Old 03-29-2016, 08:05 PM   #2312
Tech Regular
 
Join Date: Jan 2008
Posts: 297
Trader Rating: 1 (100%+)
Default

Where's Bent? haven't seen a post in a while
KyJoe340 is offline   Reply With Quote
Old 03-29-2016, 08:26 PM   #2313
Tech Elite
 
Join Date: Oct 2009
Location: Antelope Valley, CA
Posts: 4,730
Trader Rating: 478 (100%+)
Default

Quote:
Originally Posted by Socket View Post
The "lightweight" body just came out.

Same damn design.
"lightweight" = replace more often for most people.
__________________
Now that I've discovered the ignore list I plan to use it.....14 and counting!
QDRHRSE is offline   Reply With Quote
Old 03-29-2016, 09:15 PM   #2314
Tech Master
 
WillS's Avatar
 
Join Date: Aug 2001
Location: Sacramento, CA
Posts: 1,126
Trader Rating: 30 (100%+)
Send a message via MSN to WillS Send a message via Yahoo to WillS
Default

Quote:
Originally Posted by QDRHRSE View Post
"lightweight" = replace more often for most people.
Means lower roll center (less top heavy, less traction rolling) for carpet racing.
__________________
Will Smith
=========================================================
Sponsors:
Cheater Racing, Team Powers, Amain.com/Protek, Dialed RC Hobbies, Sweep Racing
WillS is online now   Reply With Quote
Old 03-29-2016, 09:37 PM   #2315
Tech Elite
 
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,030
Trader Rating: 33 (100%+)
Default

Quote:
Originally Posted by KyJoe340 View Post
Where's Bent? haven't seen a post in a while
I'm sure he is lurking. But all the heat and stuff he was getting from people on here ran him off I bet.. Sux too.. Or he might be doing work on the new xb8
__________________
Daniel Grobe
----------------------
Sponsors:
Proline Racing / RC America / Xray
dgrobe2112 is offline   Reply With Quote
Old 03-29-2016, 10:44 PM   #2316
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

Loving the DE. I keep getting faster with it and I trust the car to do what I want when I want. So glad I managed to get one.
__________________
OVA Neo. HW, Motiv.
Orange is faster.
todb is offline   Reply With Quote
Old 03-30-2016, 02:28 AM   #2317
Suspended
 
Join Date: Jan 2011
Posts: 4,124
Trader Rating: 61 (100%+)
Default

Quote:
Originally Posted by dgrobe2112 View Post
I'm sure he is lurking. But all the heat and stuff he was getting from people on here ran him off I bet.. Sux too.. Or he might be doing work on the new xb8

He's a big boy, he can defend himself. That's said, customer service is hard, and anonymous customer service is a nightmare.

Is he ran off? I doubt it, he hasn't been on social media much at all. Doesn't seem like they're racing much as winter is in full swing there still. His advice is great if you're running the carpet/astro car. For us on American dirt tracks with the DE kit those 50 astro setups don't mean much. Us 17.5 racers don't care much for 81 tooth spurs etc....
__________________
Best Avatar on rc-tech

Last edited by Socket; 03-30-2016 at 06:12 AM.
Socket is offline   Reply With Quote
Old 03-30-2016, 08:13 AM   #2318
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,759
Trader Rating: 26 (100%+)
Default Spur

Still no word on the 69 or 72 tooth spur?what is the current consensus for stock racers? Everyone using 75?

Bummed and thought this would be resolved by now
Quote:
Originally Posted by Socket View Post
He's a big boy, he can defend himself. That's said, customer service is hard, and anonymous customer service is a nightmare.

Is he ran off? I doubt it, he hasn't been on social media much at all. Doesn't seem like they're racing much as winter is in full swing there still. His advice is great if you're running the carpet/astro car. For us on American dirt tracks with the DE kit those 50 astro setups don't mean much. Us 17.5 racers don't care much for 81 tooth spurs etc....
JAE is offline   Reply With Quote
Old 03-30-2016, 08:19 AM   #2319
Tech Elite
 
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,030
Trader Rating: 33 (100%+)
Default

I was using AE gears that i had machined the hole bigger.. and 4 AE slipper pads.. but now i have the exotec slipper eliminator
__________________
Daniel Grobe
----------------------
Sponsors:
Proline Racing / RC America / Xray
dgrobe2112 is offline   Reply With Quote
Old 03-30-2016, 08:25 AM   #2320
Tech Elite
 
hairymuffin's Avatar
 
Join Date: Feb 2008
Location: moreno valley, ca
Posts: 2,571
Trader Rating: 93 (100%+)
Default

Quote:
Originally Posted by dgrobe2112 View Post
I'm sure he is lurking. But all the heat and stuff he was getting from people on here ran him off I bet.. Sux too.. Or he might be doing work on the new xb8
Yep +1
hairymuffin is offline   Reply With Quote
Old 03-30-2016, 08:38 AM   #2321
Tech Master
 
WillS's Avatar
 
Join Date: Aug 2001
Location: Sacramento, CA
Posts: 1,126
Trader Rating: 30 (100%+)
Send a message via MSN to WillS Send a message via Yahoo to WillS
Default

Quote:
Originally Posted by JAE View Post
Still no word on the 69 or 72 tooth spur?what is the current consensus for stock racers? Everyone using 75?

Bummed and thought this would be resolved by now
72 is money. Just have to put in a b5m topshaft, a bearing and run a schelle slipper.
__________________
Will Smith
=========================================================
Sponsors:
Cheater Racing, Team Powers, Amain.com/Protek, Dialed RC Hobbies, Sweep Racing
WillS is online now   Reply With Quote
Old 03-30-2016, 08:48 AM   #2322
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,759
Trader Rating: 26 (100%+)
Default Slipper

Shoot - sipper eliminator in stock but 69t spur on back order

Quote:
Originally Posted by dgrobe2112 View Post
I was using AE gears that i had machined the hole bigger.. and 4 AE slipper pads.. but now i have the exotec slipper eliminator
JAE is offline   Reply With Quote
Old 03-30-2016, 09:06 AM   #2323
Suspended
 
Join Date: Jan 2011
Posts: 4,124
Trader Rating: 61 (100%+)
Default

Quote:
Originally Posted by JAE View Post
Still no word on the 69 or 72 tooth spur?what is the current consensus for stock racers? Everyone using 75?

Bummed and thought this would be resolved by now
WillS and I did the write up on the B5M V2 top shaft and the schelle slipper. I really recommend this route if you'd like to stick with a slipper.
__________________
Best Avatar on rc-tech
Socket is offline   Reply With Quote
Old 03-30-2016, 09:18 AM   #2324
Tech Fanatic
R/C Tech Elite Subscriber
 
Join Date: Jul 2003
Location: El Pueblo de Nuestra Señora La Reina de Los Ángeles del Río de Porciúncula, California, Unites States of America
Posts: 943
Trader Rating: 30 (100%+)
Default

the exotek slipper eliminator works well and you can use kimbrough spurs. i do think my diff is slightly more gritty that usual though.
__________________
...............
lagcisco is offline   Reply With Quote
Old 03-30-2016, 09:23 AM   #2325
Tech Elite
 
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,030
Trader Rating: 33 (100%+)
Default

whats your gearing for the 72 spur..
__________________
Daniel Grobe
----------------------
Sponsors:
Proline Racing / RC America / Xray
dgrobe2112 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 02:52 PM.


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