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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 07-09-2015, 02:00 AM   #31
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It's a niche market but I would love Xray to come back with a Foam tyre version car. (Yes some of us still use these tyres, not many but some!)

You can believe it will be on rails and have the strength of a tank...

T5 '16 Foam edition

Ok I will stop dreaming now lol

Back to Rubber shod cars!

1) I want Xray to go out of the normal zone with suspension and create an Awesomatix suspension setup

and

2) consider incorporating a driveshaft with boots over the CVJ to stop grit/dirt ingress.
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Old 07-09-2015, 04:26 PM   #32
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Car is very good, the best club racing car on the market of the top 3 cars.

I would like to see:
Alloy shims
Graphite plastics come standard with the kit
Lower steering rack with the optional aluminum arms standard
Motor moved slightly away from center maybe 1mm so the car is easier to balanced without additional lead when using 300g plus lipos.
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Old 07-09-2015, 07:09 PM   #33
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The one thing that I questioned when I built a 2015 was the servo mount. I don't really mind the design but I'd like to see the three holes that mount it to the chassis to be unevenly spaced. With the evenly spaced it creates a pivot point so if they are loose or take a hard hit it can still pivot a little smidgen on the center screw. I have not actually had an issue with that but I did on an early 2013 car with the two screws and a center locating lug and think that an uneven spacing would help.

Also, a larger diameter pinion access hole in the chassis would be nice.
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Old 07-09-2015, 07:21 PM   #34
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Do you think they will release a sport version?
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Old 07-10-2015, 01:37 AM   #35
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Quote:
Originally Posted by DamianW View Post
Car is very good, the best club racing car on the market of the top 3 cars.

I would like to see:
Alloy shims
Graphite plastics come standard with the kit
Lower steering rack with the optional aluminum arms standard
Motor moved slightly away from center maybe 1mm so the car is easier to balanced without additional lead when using 300g plus lipos.
The only part I agree with there is alloy shims.
Graphite arms etc aren't suitable for lower grip conditions.
Moving the motor out will effect handling of the car. You need to either, stop worring about the balance, or buy smaller capacity lipos
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Old 07-10-2015, 03:29 AM   #36
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Quote:
Originally Posted by DamianW View Post
Car is very good, the best club racing car on the market of the top 3 cars.

I would like to see:
Alloy shims
Graphite plastics come standard with the kit
Lower steering rack with the optional aluminum arms standard
Motor moved slightly away from center maybe 1mm so the car is easier to balanced without additional lead when using 300g plus lipos.
You could always shim the motor out 1mm yourself
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Old 07-10-2015, 04:59 AM   #37
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+1 Billion on ECS shafts included with kits and no increase in price............KABOOOOOM........2016 T4 8 )
P.S. I love "Xray Orange" as well.
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Old 07-10-2015, 12:24 PM   #38
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Quote:
Originally Posted by vabroom View Post
Maybe the upgrade will be a 10% raise in price.
LMAO!


Quote:
Originally Posted by Troy Carter View Post
The one thing that I questioned when I built a 2015 was the servo mount. I don't really mind the design but I'd like to see the three holes that mount it to the chassis to be unevenly spaced. With the evenly spaced it creates a pivot point so if they are loose or take a hard hit it can still pivot a little smidgen on the center screw. I have not actually had an issue with that but I did on an early 2013 car with the two screws and a center locating lug and think that an uneven spacing would help.

Also, a larger diameter pinion access hole in the chassis would be nice.
At least a wider access hole to the pinion would be nice.


As far as the ECSs, I gave up on them and started using the Spec-R axles. Easier to maintain without any hassles or broken pins.

The kit is fine for now except for the cheap battery braces and I too love the orange!
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Old 07-10-2015, 07:31 PM   #39
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Quote:
Originally Posted by F. Mendoza View Post
LMAO!




At least a wider access hole to the pinion would be nice.


As far as the ECSs, I gave up on them and started using the Spec-R axles. Easier to maintain without any hassles or broken pins.

The kit is fine for now except for the cheap battery braces and I too love the orange!
Have you used the P8 version of the Spec-R shafts?

I loved the version 2's but the P8's failed almost immediately at the axle threads and I had heard the same from a couple others so I have not gone back to them. I'm curious if they fixed that issue.
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Old 07-11-2015, 04:25 AM   #40
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Quote:
Originally Posted by Skiddins View Post
The only part I agree with there is alloy shims.
Graphite arms etc aren't suitable for lower grip conditions.
Moving the motor out will effect handling of the car. You need to either, stop worring about the balance, or buy smaller capacity lipos
All good I would be interested to know why you think the plastic steering bridge arms and stock arms are better.

Re lighter lipos in mod and boosted certainly but in blinky bigger capacity is faster over 6 minutes.
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Old 07-11-2015, 06:06 AM   #41
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Quote:
Originally Posted by DamianW View Post
All good I would be interested to know why you think the plastic steering bridge arms and stock arms are better.

Re lighter lipos in mod and boosted certainly but in blinky bigger capacity is faster over 6 minutes.
Stock arms are supposed to have a bit more flex and therefore generate a bit more grip, which is better on low/medium grip, graphite have less flex so make the car a bit more responsive and are better for medium/high grip.
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Old 07-12-2015, 04:16 AM   #42
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Quote:
Originally Posted by Barry_Hughes View Post
Stock arms are supposed to have a bit more flex and therefore generate a bit more grip, which is better on low/medium grip, graphite have less flex so make the car a bit more responsive and are better for medium/high grip.
Flex in the C hubs and rear uprights certainly can increase grip but everytime I have tried stock arms vs graphite back to back the graphite arms provide more grip and more stability.

I cant explain why but the stock arms seem to provide least grip and least stability even when the track is low grip when it is hot.
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Old 07-12-2015, 05:41 AM   #43
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Quote:
Originally Posted by DamianW View Post
Flex in the C hubs and rear uprights certainly can increase grip but everytime I have tried stock arms vs graphite back to back the graphite arms provide more grip and more stability.

I cant explain why but the stock arms seem to provide least grip and least stability even when the track is low grip when it is hot.
Hi Damian I did say supposed to
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Old 07-12-2015, 09:59 AM   #44
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Quote:
Originally Posted by DamianW View Post
All good I would be interested to know why you think the plastic steering bridge arms and stock arms are better.

Re lighter lipos in mod and boosted certainly but in blinky bigger capacity is faster over 6 minutes.
I don't think the plastic arms are better, or worse To be honest I can't tell any difference.

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Old 07-12-2015, 03:55 PM   #45
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Back to back the difference in feel is there at least for me as well as on the clock.
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