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 10-31-2016, 12:18 PM   #3961
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,348
Default

Quote:
Originally Posted by Cain View Post
I'd be curious to see more of it and conditions used as even with a different vehicle (RC10B6D) I don't see much about people using the sway bar setup. On my previous dex210F, it was common on the rear but not the front.
Sway bars front and rear are used on the B6 as well on EOS carpet and very high grip astro

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | FX-Engines | Hudy | G-Force | Maxima Fuel | Hiro Seiko
DubiDesign | Maugrafix | YeahRacing | rcMart | IB Prostart
Follow Malin on Facebook for race reports and setup tips
BentKa is offline   Reply With Quote
Old 10-31-2016, 01:26 PM   #3962
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,761
Trader Rating: 26 (100%+)
Default

72-29 tight track hi-grip clay to to 72/30-31 @ OCRC (large med/high bite w/treads). The tracks in socal even when large and flowy have jumps you need to carry in stock. The xb2 jumps a little lower, and flat and I'm frequently geared down a tooth compared to associated gearing to clear such jumps. This is with standard rotors (no short stack or torque). I haven't seen anyone geared higher than 32 this last 6 months. Strange how everything here is gearing increasingly downward.

Quote:
Originally Posted by lyons238 View Post
does anyone know what gearing will be needed for stock racing with the 3 gear laydown?

would 32/69 be acceptable or more like 30/69?

thinking about trying my hand at stock racing since the class is much bigger.
__________________
JAE
JAE is offline   Reply With Quote
Old 10-31-2016, 01:32 PM   #3963
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by JAE View Post
72-29 tight track hi-grip clay to to 72/30-31 @ OCRC (large med/high bite w/treads). The tracks in socal even when large and flowy have jumps you need to carry in stock. The xb2 jumps a little lower, and flat and I'm frequently geared down a tooth compared to associated gearing to clear such jumps. This is with standard rotors (no short stack or torque). I haven't seen anyone geared higher than 32 this last 6 months. Strange how everything here is gearing increasingly downward.
29/72 seems geared very low...

if others are running 32/69 - i would think like 34/72 would be more realistic?

i dont even have a stock motor yet im just considering trying it because the stock class is so much bigger. i run a 6.5t now.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 10-31-2016, 04:05 PM   #3964
Tech Champion
 
tony montana's Avatar
 
Join Date: Aug 2002
Location: Leonardtown Md.
Posts: 6,115
Trader Rating: 65 (100%+)
Default

Is the 17 edition out yet? Also is there gonna be a dirt edition 17?
__________________
K.C. Guy. Team Xray - rc america
tony montana is offline   Reply With Quote
Old 10-31-2016, 04:23 PM   #3965
Tech Master
 
Join Date: Apr 2014
Location: Somewhere
Posts: 1,220
Trader Rating: 32 (100%+)
Default

Quote:
Originally Posted by tony montana View Post
Is the 17 edition out yet? Also is there gonna be a dirt edition 17?
I don't think '17 come out but 3 gear laydown transmission is already here in US. KC first time i run my b6d at MIMI yesterday was great easy to drive than my xb2. I'm happy to switch b6d and sold my xb2.
raved007 is offline   Reply With Quote
Old 10-31-2016, 06:51 PM   #3966
Tech Fanatic
 
Join Date: Jun 2007
Posts: 854
Default

How many teeth are y'all putting to the 75T?
Keith B is offline   Reply With Quote
Old 10-31-2016, 07:27 PM   #3967
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,761
Trader Rating: 26 (100%+)
Default

And this is a large med bite track. Keep in mind Xray geared a little lower to clear some jumps...

http://www.rccaraction.com/blog/2016/05/20/under-the-hood-kody-numedahls-stock-racing-b6/



Quote:
Originally Posted by lyons238 View Post
29/72 seems geared very low...

if others are running 32/69 - i would think like 34/72 would be more realistic?

i dont even have a stock motor yet im just considering trying it because the stock class is so much bigger. i run a 6.5t now.
JAE is offline   Reply With Quote
Old 11-01-2016, 05:10 AM   #3968
Tech Fanatic
 
Join Date: Jun 2007
Posts: 854
Default

Could someone list {i.g.r.} Internal Gear Ratio on the Wiki?
Keith B is offline   Reply With Quote
Old 11-01-2016, 05:33 AM   #3969
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by JAE View Post
And this is a large med bite track. Keep in mind Xray geared a little lower to clear some jumps...

http://www.rccaraction.com/blog/2016...ock-racing-b6/
at my track i know most b6 guys run 32/69 but i wasn't sure how the xb2 compared as far as the ratio.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 11-01-2016, 05:53 AM   #3970
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,348
Default

Quote:
Originally Posted by tony montana View Post
Is the 17 edition out yet? Also is there gonna be a dirt edition 17?
'17 XB2 Carpet Edition is released:

https://teamxray.com/xb2c/2017/en/

Yes there will be a '17 XB2 Dirt Edition.

Bent
BentKa is offline   Reply With Quote
Old 11-01-2016, 05:59 AM   #3971
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

my 3 gear should be arriving today or tomorrow. im going to race it this weekend.

ill let you guys know how i feel about it. i run mod class with a 6.5t motor so my rear grip is extremely valuable.

i have a feeling it's going to make braking a lot better and allow me to turn my EPA up a bit more and not risk sliding out if im turning ever so slightly.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 11-01-2016, 08:56 AM   #3972
Tech Regular
 
Join Date: Dec 2013
Location: Penticton BC
Posts: 257
Trader Rating: 3 (100%+)
Default

Bent....

Could you post a list of parts needed to convert the XB2 '16 spec to the '17 spec....also I race on CRC oxide carpet and I am having a tough time keeping my inside rear wheel planted in corners.....I figure that I need to stiffen up the front suspension...do you agree? I took 1st in our last club race so it is already awesome, just trying to get it a little more planted.

Thanks
__________________
Shaun Barron.
Big and Important Titles
2 lines of sponsors!
Cuz Big and Important Titles and 2 lines of sponsors are way cool
Shaun B22 is offline   Reply With Quote
Old 11-01-2016, 09:10 AM   #3973
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,348
Default

Quote:
Originally Posted by Shaun B22 View Post
Bent....

Could you post a list of parts needed to convert the XB2 '16 spec to the '17 spec....also I race on CRC oxide carpet and I am having a tough time keeping my inside rear wheel planted in corners.....I figure that I need to stiffen up the front suspension...do you agree? I took 1st in our last club race so it is already awesome, just trying to get it a little more planted.

Thanks
I have posted the parts list several times and it's in the Wiki as well on the first page

3 gear will help a lot.

Bent
BentKa is offline   Reply With Quote
Old 11-01-2016, 09:38 AM   #3974
Tech Regular
 
Join Date: Dec 2011
Posts: 402
Trader Rating: 6 (100%+)
Default

Bent.
One of the big selling points for me was the mid/rear motor conversion that was advertised on the 16 model. I was told numerous times that it was coming. Now that the 17 is out should I assume it was false advertising and xray is not going to make the rear motor conversion

If it is available and I some how missed it. i apologize for the post above
rekim is offline   Reply With Quote
Old 11-01-2016, 09:51 AM   #3975
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 787
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by rekim View Post
Bent.
One of the big selling points for me was the mid/rear motor conversion that was advertised on the 16 model. I was told numerous times that it was coming. Now that the 17 is out should I assume it was false advertising and xray is not going to make the rear motor conversion

If it is available and I some how missed it. i apologize for the post above
i think it was a patent issue. not positive but i think that was the case.

quite honestly, no one runs rear motor these days anyway. you can get PLENTY of traction with a standup mid motor, they even have a 4 gear standup tranny which is tons of rear bite. the buggy will handle better mid motor with a 4 gear than 3 gear rear motor and it has almost the same or as much traction but way better handling characteristics and cornering.
__________________
| 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 07:08 PM.


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