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Xray T4 2016

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Old 03-17-2017, 02:10 AM   -   Wikipost
R/C Tech ForumsThread 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 09-19-2015, 07:24 AM
  #76  
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Exactly, that would be great and justifies the price somewhat. IF its only optimized parts, its not.
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Old 09-19-2015, 08:12 AM
  #77  
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Well, they kinda dropped the ball on that one. First DCJs as option parts, then they were breaking, then they updated the pins and so on. Time to get it right and put them in the kit (Tamiya offered extra parts in their kits as a promotion, don't know about others).

As far as optimisation goes, I think it may be worth it if they come up with a Yokomo style motor mount (single piece). I would have bought the T4/15 if they did. Now, they have to come with more than that especially if they jack up the price.
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Old 09-19-2015, 12:40 PM
  #78  
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Originally Posted by niznai
I was thinking along the same lines. My money says it's DCJ's.
or standard and progressive shocks
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Old 09-19-2015, 01:32 PM
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Originally Posted by niznai
Well, they kinda dropped the ball on that one. First DCJs as option parts, then they were breaking, then they updated the pins and so on. Time to get it right and put them in the kit (Tamiya offered extra parts in their kits as a promotion, don't know about others).

As far as optimisation goes, I think it may be worth it if they come up with a Yokomo style motor mount (single piece). I would have bought the T4/15 if they did. Now, they have to come with more than that especially if they jack up the price.
Tamiya has them as standard, not as extra parts. They also have the carbon fibre bumper plate as standard. And the car is still cheaper.

Xray do make great cars and they've always been a little bit pricier but this price leap seems strange. Hopefully it's going to be something special to merit the increase.

It'd be nice to see someone do something different. Xray were creative with ARS even if it was a bit hit and miss. Maybe they've something special up their sleeves.
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Old 09-19-2015, 02:20 PM
  #80  
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Originally Posted by daveaustin5
Tamiya has them as standard, not as extra parts. They also have the carbon fibre bumper plate as standard. And the car is still cheaper.
DCJs
Belt tensioner
Carbon bumper
Carbon plastics
Alloy shock spring bases
Steel spool outdrives
Titanium coated Suspension shafts
Alloy steering arms

Plus keyed bulkheads (stolen from yokomo)

Yet I'm still looking to change over to xray for next year
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Old 09-19-2015, 03:48 PM
  #81  
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Originally Posted by niznai
As far as optimisation goes, I think it may be worth it if they come up with a Yokomo style motor mount (single piece). I would have bought the T4/15 if they did. Now, they have to come with more than that especially if they jack up the price.
What do you mean by single piece motor mount?
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Old 09-19-2015, 03:59 PM
  #82  
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eeyy guys there photos?
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Old 09-19-2015, 05:34 PM
  #83  
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Originally Posted by Skiddins
What do you mean by single piece motor mount?
I assume he means one sided with lay shaft supported on the motor side only.
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Old 09-20-2015, 04:23 AM
  #84  
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DCJ will be included in the kit now. PSS system will remain a optional part.
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Old 09-20-2015, 04:55 AM
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Originally Posted by A Ilievski
DCJ will be included in the kit now. PSS system will remain a optional part.
so any major changes?
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Old 09-20-2015, 04:27 PM
  #86  
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Originally Posted by cplus
I assume he means one sided with lay shaft supported on the motor side only.
Trying to understand why that would be enough to stop someone buying a kit.
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Old 09-20-2015, 05:49 PM
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Originally Posted by Skiddins
Trying to understand why that would be enough to stop someone buying a kit.
I guess if you are convinced it is the key to good balance and low tweak propensity it might be a requirement for you?

The TRF solution is actually quite neat. It's two sided, with the benefit that gives to strength but contact and fixing points with the chassis are central and even left to right. However then tamiya semi ruin it by not making the chassis symmetrical
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Old 09-21-2015, 07:16 AM
  #88  
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Originally Posted by daveaustin5
Tamiya has them as standard, not as extra parts. They also have the carbon fibre bumper plate as standard. And the car is still cheaper.

Xray do make great cars and they've always been a little bit pricier but this price leap seems strange. Hopefully it's going to be something special to merit the increase.

It'd be nice to see someone do something different. Xray were creative with ARS even if it was a bit hit and miss. Maybe they've something special up their sleeves.
I was referring tot he kits with the extra parts (sway bars, I don't know what else).

And yes, that is the motor mount I was talking about.

Why is it important for me? Because our track is very low grip asphalt and I like my cars soft.
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Old 09-21-2015, 08:08 AM
  #89  
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Originally Posted by niznai
I was referring tot he kits with the extra parts (sway bars, I don't know what else).

And yes, that is the motor mount I was talking about.

Why is it important for me? Because our track is very low grip asphalt and I like my cars soft.
A solid one piece motor mount would take away grip, it may make it tweak less. My BD715 is really good on asphalt when the grip is high but when it's low the Xray's and Schumacher's are a lot better, a guy runs a BD713 when the grip is low, it's awesome in those conditions, especially in the damp and wet
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Old 09-21-2015, 08:15 AM
  #90  
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Originally Posted by Bar
A solid one piece motor mount would take away grip, it may make it tweak less.
Tweak was the reason that Xray made the front of their motor mount two separate pieces for the '15, with the '14, in a crash the mount could tweak, but it stayed tweaked, the extra join meant it would return to it's original position more easily.

Have thought about a one piece layshaft mount being better, but not actually sure if it would benefit. The mounts on the Xray do allow some movement up and down so they don't 'pinch' the layshaft bearings when the chassis flexes.
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