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 Tree30Likes
Reply
 
Thread Tools Search this Thread
Old 12-04-2015, 04:02 PM   #361
Tech Addict
 
advpball's Avatar
 
Join Date: May 2007
Posts: 600
Trader Rating: 28 (100%+)
Default

ordered from local hobby shop today and it's on its way!!!
__________________
xray xb2 de
Johnny 5 designs xsc2
Tekno eb410
all powered by smc battery's and
hobbywing esc, airtronics controlled MT4s
advpball is offline   Reply With Quote
Old 12-05-2015, 01:58 AM   #362
Tech Apprentice
 
Tobiasmart's Avatar
 
Join Date: Aug 2014
Location: Gothenburg, Sweden
Posts: 75
Default Like it!

Finished up my build last night, very impressed with the quality. Very easy to make a clean electronics install.
Gonna run it for the first time today on carpet.


__________________
Cars: HB D413 - HB D815e - HB D815 - Mugen MBX7
Electronics: REDS - Hobbywing - Sav÷x - Viper - Sanwa
Tobiasmart is offline   Reply With Quote
Old 12-05-2015, 01:12 PM   #363
Tech Master
 
suby723's Avatar
 
Join Date: May 2011
Location: Spring Hill Tennessee
Posts: 1,377
Trader Rating: 21 (100%+)
Default

Looks good. I can't believe the car is under weight in stock form! I'll be getting the battery weights and brass bulkhead ASAP.
suby723 is offline   Reply With Quote
Old 12-05-2015, 02:32 PM   #364
Tech Master
 
3srcracing's Avatar
 
Join Date: Nov 2011
Location: Utah
Posts: 1,761
Trader Rating: 25 (100%+)
Default

So the offset is different then associated?

Will these work on the front?
http://www.jconcepts.net/shop/mono-b...im-front-wheel
3srcracing is offline   Reply With Quote
Old 12-05-2015, 02:47 PM   #365
Tech Regular
 
kbish76's Avatar
 
Join Date: Nov 2011
Location: LV NV
Posts: 351
Trader Rating: 7 (100%+)
Default Pistons

I'm really interested in this buggy since my local track will be transforming to an indoor carpet surface from clay/dirt. However I read over all the posts and I don't see if this kit has Pistons from a tree or machined ones. And I'm concerned that the Pistons use e-clips to attach to the shock shaft. For the money you spend and the hype Xray boast about there products I would hope there were machines Pistons and that they screwed into the shaft. Can anyone confirm this?
kbish76 is offline   Reply With Quote
Old 12-05-2015, 03:14 PM   #366
Tech Adept
 
Join Date: Jun 2011
Posts: 132
Default

Quote:
Originally Posted by kbish76 View Post
I'm really interested in this buggy since my local track will be transforming to an indoor carpet surface from clay/dirt. However I read over all the posts and I don't see if this kit has Pistons from a tree or machined ones. And I'm concerned that the Pistons use e-clips to attach to the shock shaft. For the money you spend and the hype Xray boast about there products I would hope there were machines Pistons and that they screwed into the shaft. Can anyone confirm this?
Never had an issue with e-clips. I can understand nut for 1/8th.
Had Kyosho, Yokomo, Schumacher. Xray, all using e-clips, not a concern at all.
I like the YZ2 shocks as you don't need the lower position clips.
Best shocks for me are Kyosho by far, e-clips.

New Xray shocks are awesome btw. New coating on bodies very good and overall it feels way more durable than any shocks I've tried (including Kyosho).

Pistons come from a tree, I use Schelle machined ones with success, it was worth it.
mojo tom is offline   Reply With Quote
Old 12-05-2015, 03:23 PM   #367
Tech Elite
 
gticlay's Avatar
 
Join Date: Jan 2011
Posts: 2,037
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by kbish76 View Post
I'm really interested in this buggy since my local track will be transforming to an indoor carpet surface from clay/dirt. However I read over all the posts and I don't see if this kit has Pistons from a tree or machined ones. And I'm concerned that the Pistons use e-clips to attach to the shock shaft. For the money you spend and the hype Xray boast about there products I would hope there were machines Pistons and that they screwed into the shaft. Can anyone confirm this?
Probably off the tree like the XB4. However, they work great. You can get Schelle pistons made for these cars as well
gticlay is offline   Reply With Quote
Old 12-05-2015, 03:55 PM   #368
Tech Apprentice
 
Tobiasmart's Avatar
 
Join Date: Aug 2014
Location: Gothenburg, Sweden
Posts: 75
Default

Quote:
Originally Posted by kbish76 View Post
I'm really interested in this buggy since my local track will be transforming to an indoor carpet surface from clay/dirt. However I read over all the posts and I don't see if this kit has Pistons from a tree or machined ones. And I'm concerned that the Pistons use e-clips to attach to the shock shaft. For the money you spend and the hype Xray boast about there products I would hope there were machines Pistons and that they screwed into the shaft. Can anyone confirm this?
Pistons are from a tree and made in delrin. I tried machined Pistons as we'll but the the stock ones have a better fit. No need for machined Pistons with this kit.

The orings on the other hand is a disappointment. The shocks sucks in a lot of air. Other people at my track have the same experience. Will try a set of x-rings next week.
Tobiasmart is offline   Reply With Quote
Old 12-05-2015, 04:16 PM   #369
Tech Regular
 
kbish76's Avatar
 
Join Date: Nov 2011
Location: LV NV
Posts: 351
Trader Rating: 7 (100%+)
Default

Thanks for all the feedback. I guess it's always better to try what you get first and make adjustments moving forward. With the reply on the o-rings not very good what size are the shock shafts? 12mm? Just wondering because there was a mention of the AE aftermarket ones above.
kbish76 is offline   Reply With Quote
Old 12-05-2015, 04:23 PM   #370
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,355
Default

Quote:
Originally Posted by kbish76 View Post
Thanks for all the feedback. I guess it's always better to try what you get first and make adjustments moving forward. With the reply on the o-rings not very good what size are the shock shafts? 12mm? Just wondering because there was a mention of the AE aftermarket ones above.
No need to replace the stock O-rings.

Been running them for the last 3 years now without any issues.

The stock shocks on the XB4 and XB2 are some of the very best out there, same as for their T4 touring car.

If you want to run the 2x1.6 and 2x1.7 setup the team runs just drill the blank pistons included in the kit.

That's what the entire team runs without issues.

Super smooth and easily one of the best handling cars out there

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | Futaba | FX-Engines | Hudy | G-Force | Maxima Fuel
Hiro Seiko | DubiDesign | Maugrafix | YeahRacing | rcMart | LapMonitor | IB Prostart
Follow Malin on Facebook for race reports and setup tips
BentKa is offline   Reply With Quote
Old 12-05-2015, 06:55 PM   #371
Tech Initiate
R/C Tech Elite Subscriber
 
Join Date: Jul 2015
Location: CT
Posts: 47
Trader Rating: 1 (100%+)
Default

Does the kit come with servo mounts for a low pro servo. The bigger mounts, like on the xb4.
thanks
Franzchise is offline   Reply With Quote
Old 12-05-2015, 07:27 PM   #372
Tech Master
 
Mr. Bubby's Avatar
 
Join Date: Feb 2005
Posts: 1,085
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by Zach Peterson View Post
Does anyone know if all of the first shipment of cars comes with the ball diff's or only if you order directly through Rc America
Relax Zachy Poo Didn't you order yours already from Andrew? If you did you'd probably have one the same time that I do.
__________________
Schumacher MI6 (Motiv Powered) Touring Car
Schumacher KC (SMC Powered) Stock Buggy
No 1/12 scale till they run with rubber tires!!!
Assoc. F6 (Cuz we run them with RUBBER TIRES!)
Mr. Bubby is offline   Reply With Quote
Old 12-06-2015, 01:16 AM   #373
Tech Master
 
BentKa's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Location: Norway
Posts: 1,355
Default

Quote:
Originally Posted by Franzchise View Post
Does the kit come with servo mounts for a low pro servo. The bigger mounts, like on the xb4.
thanks
XB2 comes with the same servo mounts as the XB4 and all normal servos both standard and low profile will fit

You can find the XB2 manual here for further details:

http://www.teamxray.com/xb2/2016/dow...manual_low.pdf

Bent
__________________
Xray XB4 | Xray XB2 | Xray XT2 | Xray XB8 | Xray XB8E | Xray T4 | Xray X12
Factory Team driver for:
XRAY | ORCA | JConcepts | Futaba | FX-Engines | Hudy | G-Force | Maxima Fuel
Hiro Seiko | DubiDesign | Maugrafix | YeahRacing | rcMart | LapMonitor | IB Prostart
Follow Malin on Facebook for race reports and setup tips
BentKa is offline   Reply With Quote
Old 12-06-2015, 01:48 AM   #374
Tech Apprentice
 
Tobiasmart's Avatar
 
Join Date: Aug 2014
Location: Gothenburg, Sweden
Posts: 75
Default

Quote:
Originally Posted by BentKa View Post
No need to replace the stock O-rings.

Been running them for the last 3 years now without any issues.

The stock shocks on the XB4 and XB2 are some of the very best out there, same as for their T4 touring car.

If you want to run the 2x1.6 and 2x1.7 setup the team runs just drill the blank pistons included in the kit.

That's what the entire team runs without issues.

Super smooth and easily one of the best handling cars out there

Bent
Do you have any tips for building the shocks without them getting full of air?
I have tried building them with only shock oil, green slime and Losi oring grease. No difference.
Tobiasmart is offline   Reply With Quote
Old 12-06-2015, 06:07 AM   #375
Tech Elite
 
symmetricon's Avatar
 
Join Date: Jun 2009
Location: houston
Posts: 4,667
Trader Rating: 27 (100%+)
Default

Emulsion shocks by definition have air in them...
__________________
XRAY / RCAMERICA
JCONCEPTS
RCSHOX
Mikes Hobby Shop
symmetricon is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 2 (1 members and 1 guests)
Woodbutcher
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 06:52 PM.


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