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R/C Tech Forums Thread Wiki: Xray T4 2016
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Welcome to the XRAY T4'16 Thread & Wikipost! Here you will find some useful info, tips and tricks as well as setups that are used by several team drivers. This wikipost is a work in progress and should continue to develop over time.

Tips & Tricks:

Alex Hagberg's Tech Tip Tuesday articles

How to mount your Protoform LTC-R Body
Setting static camber
How to mount weight on your chassis Part1
How to mount the rear wing on Protoform bodies
Simple troubleshooting guide
How to mount the battery on your chassis
How to glue your front tires for CRC Black carpet with Eric Anderson
Utilizing Exponential and RMode on the M12S
How to mount weight on your chassis Part2

Team driver Tim Wahl posted some very useful tips on Facebook as he worked through building a new kit.

1- Carbon Parts
2-Suspension
3-Solid Axle and Differential
4-Bulkheads & Drivetrain
5-Driveshaft (ECS & CVD)
6-Front & Rear Suspension
7-Tweak
8-Anti-Roll Bar
9-Battery Fix (OPTIONAL)
10-Bumper & Body
11-Shocks
12-Steering

New Graphite Hubs:
Xray have recently released some additional Graphite hubs for the T4 lineup. The 4° Graphite C-Hub has been out for some time and is known to improve steering on entry, and in general makes the car turn better. This has been the go-to c-hub on asphalt for many on the Xray team, though it is not needed on high bite carpet. The Graphite rear hub tends to make the car more stable, especially on corner entry. We are still working on gathering input on the new Graphite steering block, but for the moment feel that it should improve steering response. All Graphite parts are approximately 1g lighter than the Hard or Medium options.

Option Parts to consider:
XRA301196 T4 Graphite Upper Deck 1.6mm V2
XRA301226 Foam Bumper – Hard - highly recommend
XRA302165 Composite Front Suspension Arm 2-Hole – Hard
XRA302169 Composite Front Suspension Arm 1-Hole – Graphite
XRA302803 1.3mm Front Anti-Roll Bar
XRA303169 Composite Rear Suspension Arm 1-Hole – Graphite
XRA303802 1.2mm Rear Anti-Roll Bar
XRA305137 Steel Solid Axle Driveshaft Adapters - HUDY Spring Steel - highly recommend
XRA305242 Composite Drive Shaft Replacement Cap 3.5mm – Orange – Strong (QTY 4)
XRA305351 Aluminum Wheel Hub – Offset “-0.75mm” – Black (QTY 2)
XRA306191 T4 Graphite + Aluminum Fully Adjustable Battery Holder
XRA308264 4S Spring-Set Progressive C=2.5-2.8 (QTY 2)
XRA308276 4S Spring-Set C=2.7 (QTY 2)
XRA308286 4S Spring-Set C=2.6 (QTY 2)
Specific to Asphalt:
XRA302383 Composite C-Hub Right – 4* - Graphite (ECS)
XRA302384 Composite C-Hub Left – 4* - Graphite (ECS)
XRA308039 Aluminum Progressive Shock System – Set (QTY 2)

Specific to Carpet:

XRA301141 T4 Aluminum Flex Chassis 2mm
XRA302375 Composite C-Hub Right – 6* - Hard ***Modification may be required if they don't have the "ECS" stamp.

XRA302376 Composite C-Hub Left – 6* - Hard ***Modification may be required if they don't have the "ECS" stamp.

XRA303711-O Aluminum Rear Lower Suspension Holder – Front – RF
Recent Setups:
3 July 2016 - Alex Hagberg - European Championship - Asphalt - Mod - 2nd
3 July 2016 - Bruno Coelho - European Championship - Asphalt - Mod - 4th
3 July 2016 - Jan Ratheisky - European Championship - Asphalt - 13.5 - TQ + Win

29 June 2016 - Max Kuenning - Reedy - Asphalt - Mod - 4th
29 June 2016 - Keith Yu - Reedy - Asphalt - 13.5 - TQ + 2nd
29 June 2016 - Eric Anderson - Reedy - Asphalt - 13.5 - 3rd

15 May 2016 - Bruno Coelho - ETS Rd 4 Riccione - Asphalt - Mod - TQ + Win
15 May 2016 - Mattia Collina - ETS Rd 4 Riccione - Asphalt - 13.5 - Win

17 April 2016 - Max Kuenning - MHIC - Carpet - Mod - 4th

10 April 2016 - Bruno Coelho - ETS Rd 3 Wels - Carpet - Mod - 2nd
10 April 2016 - Alex Hagberg - ETS Rd 3 Wels - Carpet - Mod - 4th
10 April 2016 - Jan Ratheisky - ETS Rd 3 Wels - Carpet - 13.5 - TQ + Win

22 March 2016 - Paul LeMieux - Canadian Nats - Carpet - Mod - TQ + Win
22 March 2016 - Luke Pittman - Canadian Nats - Carpet - Mod - 3rd

6 March 2016 - Chris Adams - ROAR Nats - Carpet - Mod - TQ + Win
6 March 2016 - Craig Xavier - ROAR Nats - Carpet - 17.5 - 4th
6 March 2016 - Eric Anderson - ROAR Nats - Carpet - 17.5 - 5th

6 February 2016 - Bruno Coelho - ETS Rd 2 Koblenz - Carpet - Mod - TQ + Win
6 February 2016 - Alex Hagberg - ETS Rd 2 Koblenz - Carpet - Mod - 2nd

31 January 2016 - Alex Hagberg - Snowbirds - Carpet - Mod - TQ + Win
31 January 2016 - Jan Ratheisky - Snowbirds - Carpet - All - See Comments
31 January 2016 - Drew Ellis - Snowbirds - Carpet - 13.5 - 4th
31 January 2016 - Robbie Dodge - Snowbirds - Carpet - 17.5 - Win

13 December 2015 - Bruno Coelho - ETS Rd 1 Hrotovice - Carpet - Mod - 3rd
13 December 2015 - Alex Hagberg - ETS Rd 1 Hrotovice - Carpet - Mod - 4th
13 December 2015 - Olly Jeffries - ETS Rd 1 Hrotovice - Carpet - Mod - 7th
13 December 2015 - Jan Ratheisky - ETS Rd 1 Hrotovice - Carpet - 13.5 - TQ + Win

29 November 2015 - Paul LeMieux - US Indoor Champs - Carpet - Mod - TQ + Win

25 October 2015 - Eric Anderson - Stock Wars - Carpet - 17.5 - 2nd

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Old 11-19-2015, 02:19 PM   #271
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The only problem that I have with them is its just a little bit of a PITA to change tape. Love the idea but watched a buddy argue with his other brand car this weekend with a similar method.

-----------------------------------------------------------------------------------------------

Had a good race weekend last weekend in the state series we have going on here. Had some rough qualifiers (just dumb mistakes on my part), but finally got everything sorted for the main. Qualified 5th, and finished 3rd about 4 seconds behind 1st. Was really happy with that result, some super fast guys in this series. Thanks to Rob for some setup help. This is where I ended up for the main on the car (RCTech says file is too large for the standard upload). Far from the kit setup now. Setup sheet below:

https://app.box.com/s/jqh7vzifbqtkkh062lgb00lfij6yp39q

Track picture reference, large 1/8th style track. Was really cool to be able to run at a track this size. Loads of fun!




Last edited by 3D-Seth; 11-19-2015 at 02:51 PM.
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Old 11-30-2015, 10:54 PM   #272
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any noticeable/big difference in terms of performance between the '15 and '16?

the narrower chassis and extra roll center for the ARS?

Thinking of buying the top and lower deck for an upgrade (I already got the xray ECS installed in my '15).

thanks in advance.
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Old 11-30-2015, 11:48 PM   #273
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the 15 and the 16 are the same width. If you use the ARS system then you just need the left (303713) and right (303712) suspension holders. Since I race 17.5 I don't think the top deck will work for me since I have to remove the top deck to change pinions.
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Old 12-01-2015, 01:04 AM   #274
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Originally Posted by vabroom View Post
the 15 and the 16 are the same width. If you use the ARS system then you just need the left (303713) and right (303712) suspension holders. Since I race 17.5 I don't think the top deck will work for me since I have to remove the top deck to change pinions.
Thanks dude, all along I thought the 16 chassis was narrower based on the xray t4 2016 website page.

no need for a hop up then.
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Old 12-02-2015, 03:10 PM   #275
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Default Chassis Question

I have an xray t4 2013 converted to a t4 2014 with the rsd conversion. I am wanting to switch to an aluminum chassis or at least purchase one to run for a little bit to see if I like it better. I am wondering if anyone knows if the new avid rc aluminum chassis for the t4 15/16 will work. looking at the pictures it looks as though it will however I don't want to drop $75 plus shipping to find out that it doesn't.
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Old 12-02-2015, 03:15 PM   #276
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Originally Posted by coltsfan46788 View Post
I have an xray t4 2013 converted to a t4 2014 with the rsd conversion. I am wanting to switch to an aluminum chassis or at least purchase one to run for a little bit to see if I like it better. I am wondering if anyone knows if the new avid rc aluminum chassis for the t4 15/16 will work. looking at the pictures it looks as though it will however I don't want to drop $75 plus shipping to find out that it doesn't.
The motor and servo mounts were changed from the 14->15 and the motor again from the 15->16. You'd need to purchase those as well. Other than that I think it should work.
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Old 12-02-2015, 06:15 PM   #277
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I ran a 14 car with a 15 aluminum and carbon chassis with success, but Ethan is right. You will need the 15 motor mount and little "T" shaped accompanying piece as well as the aluminum servo mount and the CF top piece for the servo mount. Everything else will bolt up. For the 16 you will again need a new motor mount and "T" piece from a 16 to work with the 16 AVID chassis. LMK if you have any other questions.
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Old 12-02-2015, 11:30 PM   #278
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Originally Posted by andrewdoherty View Post
I ran a 14 car with a 15 aluminum and carbon chassis with success, but Ethan is right. You will need the 15 motor mount and little "T" shaped accompanying piece as well as the aluminum servo mount and the CF top piece for the servo mount. Everything else will bolt up. For the 16 you will again need a new motor mount and "T" piece from a 16 to work with the 16 AVID chassis. LMK if you have any other questions.
Will do. Thank you for the input. That will make this decision a little easier to make now.
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Old 12-03-2015, 12:57 PM   #279
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Quote:
Originally Posted by coltsfan46788 View Post
I have an xray t4 2013 converted to a t4 2014 with the rsd conversion. I am wanting to switch to an aluminum chassis or at least purchase one to run for a little bit to see if I like it better. I am wondering if anyone knows if the new avid rc aluminum chassis for the t4 15/16 will work. looking at the pictures it looks as though it will however I don't want to drop $75 plus shipping to find out that it doesn't.
If this is using the reflex RX4 kit then you can get an aluminum chassis from Christian at Reflex that works really well and accepts either the 2013/14 motor mount and the 2015 mount. And it is drilled for the 2015 ARS mounting positions. Basically the chassis below drilled for the RX 4 mounts

.http://www.reflexracing.net/RSD-RX4-...15_p_2520.html
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Old 12-08-2015, 12:36 PM   #280
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hi I am building a 2016 T4 and will run on med traction carpet, do you guys think I need to rise the top deck for 0.5mm or 1mm ??? or just keep it stock . thanks
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Old 12-08-2015, 12:57 PM   #281
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Originally Posted by teddymp9 View Post
hi I am building a 2016 T4 and will run on med traction carpet, do you guys think I need to rise the top deck for 0.5mm or 1mm ??? or just keep it stock . thanks
Most of the fast guys around here are running an Avid aluminum chassis with an Avid 1.5mm top deck.

As far as "raising" the top deck is concerned, I haven't heard anyone around here doing that...

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Old 12-08-2015, 01:09 PM   #282
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Originally Posted by 3D-Seth View Post
Most of the fast guys around here are running an Avid aluminum chassis with an Avid 1.5mm top deck.

As far as "raising" the top deck is concerned, I haven't heard anyone around here doing that...

Seth
because I saw on 15 T4 forum , seem like most of them are rising the top deck to get more traction , so that's why I want to ask did the 16 T4 need the same setup.

thanks
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Old 12-08-2015, 01:48 PM   #283
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Originally Posted by teddymp9 View Post
because I saw on 15 T4 forum , seem like most of them are rising the top deck to get more traction , so that's why I want to ask did the 16 T4 need the same setup.

thanks
The only time you need to raise the top deck is if you take the 4 screws around the spur gear out. This will allow for more flex and allow the top deck enough clearance when it flexes.
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Old 12-08-2015, 01:53 PM   #284
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The only time you need to raise the top deck is if you take the 4 screws around the spur gear out. This will allow for more flex and allow the top deck enough clearance when it flexes.
so this setup is only for low and med traction track right ?
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Old 12-08-2015, 06:46 PM   #285
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Hey guys,

Just about to build my t4 16 with the progressive shock inserts. Given the same track conditions (medium grip, asphalt), do you guys build them as per standard ie same weight oil and springs as you would with the standard shocks. Or do you guys build them differently with different weight oil and springs for the same track conditions.

Hope my question makes sense.

Thanks.
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