Community
Wiki Posts
Search
Like Tree3Likes

Xray T4 2016

    Hide Wikipost
Old 03-17-2017, 02:10 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Xray T4 2016
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: 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

Print Wikipost

Thread Tools
 
Search this Thread
 
Old 02-05-2017, 10:44 AM
  #1126  
Tech Master
iTrader: (10)
 
tbrymer's Avatar
 
Join Date: Feb 2011
Location: Arizona
Posts: 1,555
Trader Rating: 10 (100%+)
Default

Originally Posted by Steve89
So I've found to go from the 16 to the 17 you need the below:

- Strong & Light Bumper
- Steering Posts
- Layshaft Bulkhead
- Motor Mount
- Motor Mount brace
- Shims for steering and layshaft bulkheads
- Alu Servo Mount
- Graphite Servo Mount Plate
- Graphite stiffener
- Upper and lower decks

So going by that I should only really need the ARS kit.
The steering posts changed?
tbrymer is offline  
Old 02-05-2017, 02:07 PM
  #1127  
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,952
Default

Originally Posted by tbrymer
The steering posts changed?
No, they moved back 1mm, but that's part of the chassis, not the posts
Skiddins is offline  
Old 02-05-2017, 03:19 PM
  #1128  
Tech Master
iTrader: (10)
 
tbrymer's Avatar
 
Join Date: Feb 2011
Location: Arizona
Posts: 1,555
Trader Rating: 10 (100%+)
Default

Originally Posted by Skiddins
No, they moved back 1mm, but that's part of the chassis, not the posts
OK, that's what I thought. 1mm shims should get it back to the previous versions position.
tbrymer is offline  
Old 02-05-2017, 05:53 PM
  #1129  
Tech Apprentice
iTrader: (2)
 
Join Date: Apr 2012
Location: Rockhampton, QLD
Posts: 55
Trader Rating: 2 (100%+)
Default

Cheers for the input guys, will see how I go getting the car up to spec, need to wait for it to get delivered first.
Steve89 is offline  
Old 02-06-2017, 01:28 AM
  #1130  
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,952
Default

Originally Posted by tbrymer
OK, that's what I thought. 1mm shims should get it back to the previous versions position.
Yes, well, sort of. The attaching points will then be the same as before, but the pivot point has moved backwards so no matter what you do it will be slightly different.

Not that I could tell any difference
Skiddins is offline  
Old 02-22-2017, 03:50 AM
  #1131  
Tech Adept
 
Join Date: Aug 2013
Posts: 169
Default Purpose of adding 1mm shim between upper deck and bulkheads

Hi guys

All the XRay T4 guys at my track added a 1mm shim between the upper deck and the bulkheads. The setup manual doesn't state this step. Do most of you all do that too? If so, what's the reason of adding the 1mm shims?

Thank you.
Kakaru is offline  
Old 02-22-2017, 04:43 AM
  #1132  
Suspended
 
Join Date: Jul 2008
Posts: 2,948
Default

Originally Posted by Kakaru
Hi guys

All the XRay T4 guys at my track added a 1mm shim between the upper deck and the bulkheads. The setup manual doesn't state this step. Do most of you all do that too? If so, what's the reason of adding the 1mm shims?

Thank you.
I feel that raising the topdeck increases flex which increases traction and steering. I do it sometimes but not always. I feel like more flex at the topdeck whether it be raising it or going to a 1.6mm topdeck will help actually calm the car down if you're traction rolling on carpet. It seems to smooth it out initially, though it does make more grip in the center of the corner.
R Dodge is offline  
Old 02-22-2017, 06:15 AM
  #1133  
Tech Adept
 
Join Date: Aug 2013
Posts: 169
Default

Originally Posted by R Dodge
I feel that raising the topdeck increases flex which increases traction and steering. I do it sometimes but not always. I feel like more flex at the topdeck whether it be raising it or going to a 1.6mm topdeck will help actually calm the car down if you're traction rolling on carpet. It seems to smooth it out initially, though it does make more grip in the center of the corner.
So increase overall traction and steering are the main reasons. Now that I know the reason. Can I apply the same theory of another 1mm shims to the upper deck to other cars like Tamiya TRF419x, so as to increase overall traction and steering?
Kakaru is offline  
Old 03-01-2017, 08:42 PM
  #1134  
Tech Apprentice
 
Join Date: Mar 2010
Posts: 98
Default

Guys, suggestions to keep the rear of the car from breaking away coming out of corners on power please?. Asphalt medium to low grip.
rcdreamer is offline  
Old 03-01-2017, 10:06 PM
  #1135  
Tech Adept
 
Join Date: Sep 2015
Posts: 106
Default

Originally Posted by rcdreamer
Guys, suggestions to keep the rear of the car from breaking away coming out of corners on power please?. Asphalt medium to low grip.
softer diff, more toe in, more front droop (lower downstop), adding a roll center shim on the bulkheads. which one to try first depends on your setup, eg if you already have a 2000 diff, softer won't probably help much.
perzeus is offline  
Old 03-01-2017, 10:13 PM
  #1136  
Tech Apprentice
 
Join Date: Mar 2010
Posts: 98
Default

Thanks, I have 5k currently, will revert to 2k and a 3k as back up. Have 2mm shim inner front camber link and 0.5 in the rear inner. 2.6 rear springs and 2.7 front. rears shocks all the way in and front 2 from inner position. 1.4 fr sway bar, 1.3 rear. 550 hudy shock oils, thinking I should go softer, maybe 450. Track is outdoors and bumpy.
rcdreamer is offline  
Old 03-02-2017, 01:02 AM
  #1137  
Tech Adept
 
Join Date: Sep 2015
Posts: 106
Default

Originally Posted by rcdreamer
Thanks, I have 5k currently, will revert to 2k and a 3k as back up. Have 2mm shim inner front camber link and 0.5 in the rear inner. 2.6 rear springs and 2.7 front. rears shocks all the way in and front 2 from inner position. 1.4 fr sway bar, 1.3 rear. 550 hudy shock oils, thinking I should go softer, maybe 450. Track is outdoors and bumpy.
From that setup I would first try rear shocks into 2nd hole as well, and add rear inner camber link shims. The safest bet though is usually to start with the basic setup and adjust from there in small steps.
perzeus is offline  
Old 03-02-2017, 01:22 AM
  #1138  
Tech Master
 
daleburr's Avatar
 
Join Date: May 2010
Location: Oxfordshire, UK
Posts: 1,090
Default

Already covered really but I'd go:

2k diff
450 oil
1mm rear link, 1.5mm front

You'll have tons of traction once you've done that.
daleburr is offline  
Old 03-02-2017, 02:19 AM
  #1139  
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,952
Default

Originally Posted by Kakaru
So increase overall traction and steering are the main reasons. Now that I know the reason. Can I apply the same theory of another 1mm shims to the upper deck to other cars like Tamiya TRF419x, so as to increase overall traction and steering?
Only one way to find out

Results will depend on the flex points etc on the chassis' and top deck.
Skiddins is offline  
Old 03-03-2017, 04:46 AM
  #1140  
Tech Apprentice
iTrader: (2)
 
Join Date: Apr 2012
Location: Rockhampton, QLD
Posts: 55
Trader Rating: 2 (100%+)
Default

So I've just rebuilt my t4'15 which I want to eventually convert to 16. My used kit I bought didn't come with the eccentric bushings. Does anyone know how many I should have? I found some on eBay just want to know how many I need to buy?

https://www.ebay.com.au/itm/131510370965
Steve89 is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.