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: 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 Tree41Likes
Reply
 
Thread Tools Search this Thread
Old 07-06-2016, 06:03 PM   #3361
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 780
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by Slapjack View Post
Good idea. And which alum servo mount are you using? Do I just get the xb4 exotek or X-ray alum servo mount and it is the same as the xb2?

Is the internal ratio 2.65 on the carpet edition?
i use the alum hudy 3 hole servo. you will want a straight servo with no bend in it and minimal offset. the exotek has too much offset.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 07-09-2016, 09:16 AM   #3362
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,889
Trader Rating: 28 (100%+)
Default

Anyone here play with the antisquat settings and know which promotes the most traction?

I'm running 0 degree antisquat with 3 degrees toe. Had previuosly had shocks on the inner hole on the shock mount and middle hole on rear arm. Car has great traction. But is lazy mid corner. I'm fighting trying to rotate sharply and get speed mid to exit corner. Moved the rear shock to the inner hole on the rear arm and wow - what great rotation in the corners. However, just not enough traction. But, I went back to the middle hole, had gobs of traction but am just really irritated with this super slow corner rotation. I have the 29 degree kickup I have yet to try. I will try that next as others seem to have success with that here. Anyone know which antisquat promotes the most rear bite? Trying to keep the inner hole shock setup on the rear mount for the time being if I can grab more traction. Next step is to revert back to 4 degrees toe but just seems like a lot of toe in. This is for med bite clay with the DE btw

Last edited by JAE; 07-09-2016 at 09:49 AM.
JAE is offline   Reply With Quote
Old 07-09-2016, 10:55 AM   #3363
Suspended
 
Join Date: Jan 2011
Posts: 4,124
Trader Rating: 61 (100%+)
Default

If you want more rotation, it has to come from the backend, not the front.

A little more anti squat does give a little more bite, but you'll give up on power steering to do it. I'd try 1 degree, and see what it does.

What rear toe are you at?
__________________
Best Avatar on rc-tech
Socket is offline   Reply With Quote
Old 07-09-2016, 01:07 PM   #3364
JAE
Tech Master
 
Join Date: Jun 2015
Posts: 1,889
Trader Rating: 28 (100%+)
Default

Im already at 3 degrees toe . Thx
JAE is offline   Reply With Quote
Old 07-10-2016, 08:29 PM   #3365
Tech Adept
 
Join Date: Mar 2008
Posts: 119
Trader Rating: 9 (100%+)
Default Aluminum drive shafts

Has anyone tried using the Losi 22 aluminum drive shafts?
skeeter 731 is offline   Reply With Quote
Old 07-10-2016, 11:28 PM   #3366
Tech Master
 
fast-ho-cars's Avatar
 
Join Date: Sep 2003
Location: it's a dry heat
Posts: 1,041
Trader Rating: 2 (100%+)
Default

any word on status of RM conversion from Xray?
fast-ho-cars is offline   Reply With Quote
Old 07-11-2016, 07:16 AM   #3367
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 780
Trader Rating: 13 (100%+)
Default

when is the xb2 2017 due? kinda stinks i just recently got my xb2 up and running and i believe the new one is due somewhat soon, anyone know when we can expect it roughly?

im happy with my 2016 xb4 and don't feel the need to upgrade ATM, but it seems like the xb2 could use some improvements, what are your thoughts? i think it's an excellent platform and with some tweaking it will be the best of the best if its not already.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 07-11-2016, 07:22 AM   #3368
Suspended
 
Join Date: Jan 2011
Posts: 4,124
Trader Rating: 61 (100%+)
Default

It needs a 3 gear laydown badly.

Though, a 2017? I'm not sure I believe it yet, because iirc they never labeled the first car a "2016".

Just my opinions, no facts here
__________________
Best Avatar on rc-tech
Socket is offline   Reply With Quote
Old 07-11-2016, 07:25 AM   #3369
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 780
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by Socket View Post
It needs a 3 gear laydown badly.

Though, a 2017? I'm not sure I believe it yet, because iirc they never labeled the first car a "2016".

Just my opinions, no facts here
true. honestly id prefer a 2 year gap in new models. im the type that has to have the new thing, so having the option, the temptation usually wins. i feel like a 2 year gap would be perfect timing. allow for some big well planned and test changes, and allow us as drivers to perfect our cars.

i agree it is a little weird they did a 4 gear laydown, but given that the car is pretty well balanced and has a lot of front end weight or the capability to put weight over the front end, the 4 gear doesn't seem to bad...especially for those using the laydown tranny on clay, it actually is pretty good.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 07-11-2016, 07:26 AM   #3370
Tech Master
 
suby723's Avatar
 
Join Date: May 2011
Location: Spring Hill Tennessee
Posts: 1,377
Trader Rating: 21 (100%+)
Default

Quote:
Originally Posted by Socket View Post
It needs a 3 gear laydown badly.

Though, a 2017? I'm not sure I believe it yet, because iirc they never labeled the first car a "2016".

Just my opinions, no facts here
I completely agree. My carpet car lacks on power steering severely. I believe the car can be better but it's a major issue that needs to be addressed in the next update IMO.
suby723 is offline   Reply With Quote
Old 07-11-2016, 07:35 AM   #3371
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 780
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by suby723 View Post
I completely agree. My carpet car lacks on power steering severely. I believe the car can be better but it's a major issue that needs to be addressed in the next update IMO.
maybe they'll release one before the next update. it does seem odd though, you would think for a carpet car they would have a 3 gear laydown as the stock configuration and a 4 gear laydown as an option part. like i said the 4 gear laydown can work well on med-high bite clay tracks and i think people are starting to figure out setups that prove that.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 07-11-2016, 07:42 AM   #3372
Tech Fanatic
 
mourinho's Avatar
 
Join Date: Jun 2013
Posts: 861
Trader Rating: 42 (100%+)
Default

Quote:
Originally Posted by lyons238 View Post
but it seems like the xb2 could use some improvements, what are your thoughts? i
What improvements do you think it needs?
mourinho is offline   Reply With Quote
Old 07-11-2016, 07:46 AM   #3373
Tech Master
 
suby723's Avatar
 
Join Date: May 2011
Location: Spring Hill Tennessee
Posts: 1,377
Trader Rating: 21 (100%+)
Default

Quote:
Originally Posted by mourinho View Post
What improvements do you think it needs?
3 gear lay down and gullwing front arms.
suby723 is offline   Reply With Quote
Old 07-11-2016, 07:59 AM   #3374
Tech Fanatic
 
Join Date: Jan 2016
Location: Rhode Island
Posts: 780
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by mourinho View Post
What improvements do you think it needs?
well as already mentioned the 4 gear, maybe gull wing front arm as an option. rear suspension hanger issue. then overall the car seems to be just a tad off pace with the best car for any given surface. like maybe the yokomo on carpet/astro. maybe it's just the drivers and setups aren't dialed with the xb2 yet or what i'm not sure. i just feel there is room for improvement being such a new platform, but it's amazing for a first gen.

the xb4 seems dialed and i am confident it is the best platform going.
__________________
| XRAY XB8E 16' | XRAY XB4 16' | XRAY XB2 CE 17' |
| New England | RCE | RCM |
lyons238 is offline   Reply With Quote
Old 07-11-2016, 11:08 AM   #3375
Tech Elite
 
Join Date: Sep 2002
Location: Austin, Tx
Posts: 2,074
Trader Rating: 33 (100%+)
Default

i kind of agree.. the 3 gear laydown would help.. like mentioned.. the car has sooo much rear end grip.. that in order to get speed.. you have to take away rear grip.. which in turn makes the car unpredictable.. and the little off pace.. yea.. i can see that as well.. but i attest it to just not having the setup just right.. and by off pace.. i mean.. just barely..
__________________
Daniel Grobe
----------------------
Sponsors:
Proline Racing / RC America / Xray
dgrobe2112 is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 2 (0 members and 2 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 11:51 AM.


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