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R/C Tech Forums Thread Wiki: Xray T4 2016
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Last edit by: R Dodge
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 10-13-2016, 11:14 PM   #1021
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I will test back to back. If you say the front will aid with more mid corner speed Ed, then thats where I will start as it where I'm lacking with my 16.
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Old 10-13-2016, 11:33 PM   #1022
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Any vid links to the iic finals??
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Old 10-13-2016, 11:57 PM   #1023
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Maybe im just not sensitive to this but i didnt notice any difference with the lower screws and i usually run all of them. Not sure how the flex is supposed to work when your still running 4 screws across the layshaft. Taking the top ones out however i felt. Though i dont like flex. I often get hit by snappy double steer and i dont like it...
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Old 10-14-2016, 05:32 AM   #1024
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Quote:
Originally Posted by rcdreamer View Post
Any vid links to the iic finals??
https://www.facebook.com/internation...nships/videos/
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Old 10-14-2016, 06:15 AM   #1025
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Quote:
Originally Posted by valk View Post
Maybe im just not sensitive to this but i didnt notice any difference with the lower screws and i usually run all of them. Not sure how the flex is supposed to work when your still running 4 screws across the layshaft. Taking the top ones out however i felt. Though i dont like flex. I often get hit by snappy double steer and i dont like it...
You may be right on there being limited adjustability when running the layshaft screws, but I personally never run them, as for me it makes the car far too locked in on the rear.
What's the rest of your setup? Might be able to suggest things to help
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Old 10-14-2016, 07:09 AM   #1026
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Quote:
Originally Posted by valk View Post
Maybe im just not sensitive to this but i didnt notice any difference with the lower screws and i usually run all of them. Not sure how the flex is supposed to work when your still running 4 screws across the layshaft. Taking the top ones out however i felt. Though i dont like flex. I often get hit by snappy double steer and i dont like it...
The team drivers never run the layshaft screws. The car seems to be easier to drive and have better traction without them.
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Old 10-14-2016, 08:02 AM   #1027
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Id run no layshaft screws, but try that center post from the motor mount up.
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Old 10-14-2016, 02:04 PM   #1028
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Im talking aboutthe screws under the layshaft and motor mount. Ido run the top screws but i usually run hard aluminum chassis with all screws on carpet.
Outdoors ill unhook the top of the layshaft and shim the topdeck up but for how flexible the cf is ive gone back to at least the forward screws in. We race on sugar outdoors so traction doesnt seem an issue.
I run mostly the kit setup and tune with droopoften. It seems a lot of the rollcenter ahimming and widths doesnt venture far from kit when im looking through setups.
Im not an authority on car setup lol. Mostof my seniors hate my car..
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Old 10-15-2016, 01:45 PM   #1029
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on the X-ray setup sheet, it lists: Motor Mount: Standard or Option.

What exactly is this referring to?
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Old 10-15-2016, 02:00 PM   #1030
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Quote:
Originally Posted by wkderf View Post
on the X-ray setup sheet, it lists: Motor Mount: Standard or Option.

What exactly is this referring to?
The team had an optional motor mount that has never been released, and is no longer used as far as I'm aware. It was a large Yokomo BD7 style mount. You can see the 4 holes in the chassis for it.

The adjustable plate on the 16 made it redundant.
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Old 10-16-2016, 05:50 AM   #1031
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Bruno used the option motor mount at IIC. It is not a yokomo style mount.
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Old 10-16-2016, 05:32 PM   #1032
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Quote:
Originally Posted by R Dodge View Post
Bruno used the option motor mount at IIC. It is not a yokomo style mount.
will the general public ever get the option to purchase this optional mount?
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Old 10-16-2016, 05:54 PM   #1033
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We think yes since Bruno put it on his setup sheet. I've never seen it marked on any sheet before.
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Old 10-17-2016, 02:28 AM   #1034
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Sounds like there have been various 'Option' motor mounts depending on which version of the car it's been on.
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Old 10-17-2016, 01:18 PM   #1035
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Yea, I believe at one point all of it has been tested.
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