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Old 03-17-2017, 02:50 AM   -   Wikipost
R/C Tech Forums Thread Wiki: XRAY X12 2017 1/12 Pan Car
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Welcome to the XRAY X12'17 Thread & Wikipost! Here you will find some useful info, tips and tricks as well as setups that are used by several team drivers. Many of us run the X12'17 on high bite carpet and with most US tracks going to the new black CRC carpet, most setups from here out will be developed for those high bite conditions.

Tips & Tricks:
Some racers notice slop developed in the front end over time. One method to reduce/remove this, as pointed out by some of our friends in Europe is to score the inside of the plastic front pivot ball (where the kingpin goes through) with a sharp xacto blade. Usually 4 scores at 12, 3, 6 and 9 will do. Alternative options can be found listed below.

As with any 1/12 pan car, a smooth operating suspension is critical to performance. It is recommended to polish your kingpins & hinge pins using a dremel or a drill and some sort of polish (IE Gravity polish or Mothers Aluminum polish will work). If you find that your suspension has a bind, you may look at using a reamer or drillbit to make sure the holes are clear of any flashing or debris. The only place this may happen is at the upper hingepin, which is 2mm dia.

For stock racing we usually find ourselves looking for a little more steering. One trick that some of the stock drivers have done that seems to help is lowering the graphite plate that the servo & shock mount to. To do this, you will need the 17mm standoffs from VBC and the servo mounts from the 2015 or earlier X12. Be careful that the servo mounts do not sit crooked on the plate when attaching it; a 0.2-0.5mm shim will help ensure it sits perfect on the graphite plate. Part numbers can be found below.

Option Parts to consider:
XRA371220 X12 Foam Bumper
XRA372012 Composite Front Upper Arm Mount – Right – Graphite

XRA372022 Composite Front Upper Arm Mount – Left – Graphite

XRA372113 Composite Suspension Arm Front Lower – Right – Graphite

XRA372123 Composite Suspension Arm Front Lower – Left – Graphite
XRA372177
Spring 4.75 Coils 3.6x6x0.45mm, C=2.0 - Silver (Soft) (2)
XRA372178
Spring 4.05 Coils 3.6x6x0.45mm, C=2.5 - Black (Soft) (2)
XRA373584 Side Spring C=0.6 - Silver (2)
XRA373586 Side Spring C=1.2 - Black (2)
XRA375010 Graphite Rear Axle Shaft - highly recommended
XRA378094 Shock Spring C=2.1 – Black

Lowered Graphite Plate:
B-02-VBC5005
XRA376255-O Alu Servo Mount - Orange (2)

Front end options:
ASC4403 Kingpins, 1:12 Scale
ASC4622 Upper Arm Eyelets

ASC4626 Upper Arm Mounts/Steering Blocks
ASC4627 Front Axles
ASC8417 Pivot Balls

Aluminum Chassis:
Max.FX Aluminum Chassis
McFactory Motorsports
Reflex/RSD

Recent Setups:
Alexander Hagberg - Snowbird Nationals - Mod - High Bite
Craig Xavier - Snowbird Nationals - 17.5 - High Bite
Robbie Dodge - Snowbird Nationals - 17.5 - High Bite
Eric Anderson - ROAR Carpet Nationals - 13.5 High Bite

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Old 09-23-2016, 02:33 AM   #31
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The other screw that undoes a lot on mine is the right hand shock tower one. Replaced the aluminium one with steel to see if that helps.
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Old 09-23-2016, 04:23 AM   #32
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the shock tower screw was the most annoying one. this ruined many of our qualifiers and races.
I replaced the alu post screw with a longer one and it's not loosening up anymore.
The pod tweaks way to easy with the Aluminum post.
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Old 09-29-2016, 02:16 AM   #33
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Got my kit yesterday. But the rear pod seems to have a rather interesting deisgn (see pcitures).

I would at least expect xray to include one single 5mm spacer that makes for a symmetrical track width...
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XRAY X12 2017 1/12 Pan Car-img_5310.jpg   XRAY X12 2017 1/12 Pan Car-img_5311.jpg  
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Old 09-29-2016, 05:19 AM   #34
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Quote:
Originally Posted by niemand View Post
Got my kit yesterday. But the rear pod seems to have a rather interesting deisgn (see pcitures).

I would at least expect xray to include one single 5mm spacer that makes for a symmetrical track width...
Everyone like a different track width, so I wouldn't expect them to include spacers. Wheel offsets are different so it would be tough to cover all the bases.
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Old 09-29-2016, 06:16 AM   #35
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Quote:
Originally Posted by niemand View Post
Got my kit yesterday. But the rear pod seems to have a rather interesting deisgn (see pcitures).

I would at least expect xray to include one single 5mm spacer that makes for a symmetrical track width...
It's like they moved the left pod plate by 5mm and forgot to space the left hub back out. Even one of the photos on the X12 web page shows the wheels offset differently! Not good.
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Old 09-29-2016, 06:37 AM   #36
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While I agree that a 5mm spacer to make up for the 5mm that was removed would be nice, this is addressed in the manual and there are various width shims in the kit. The shims in the kit should be sufficient for most offsets.


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XRAY X12 2017 1/12 Pan Car-x12axle.jpg  
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Old 09-29-2016, 07:22 AM   #37
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Almost ready;


I think I have 6mm more spacers on the left rear than the right to make the track even on both sides.

I measured from the small balancing hole in the centre of the rear pod.
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Old 09-29-2016, 08:49 AM   #38
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What's the 17 kit weigh in at compared to the 16 kit weigh in at? Still super heavy?
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Old 09-29-2016, 09:03 AM   #39
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Quote:
Originally Posted by thecaptain View Post
What's the 17 kit weigh in at compared to the 16 kit weigh in at? Still super heavy?
My scales are currently missing, but as the chassis and pod are narrower it should be slightly lighter
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Old 09-29-2016, 10:08 AM   #40
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I don't have exact numbers, but we are finding that the '17 is a bit lighter than the '16 for the reasons Skiddin's mentioned. Even with an aluminum chassis, we are seeing the '17 come in under 730.

EDIT: This is with the graphite axle and aluminum hardware at least on the top of the car.
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Last edited by R Dodge; 09-29-2016 at 10:39 AM. Reason: Details added following Craig's post
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Old 09-29-2016, 10:36 AM   #41
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Quote:
Originally Posted by thecaptain View Post
What's the 17 kit weigh in at compared to the 16 kit weigh in at? Still super heavy?
With a graphite axle and screw kit, I've always had to add some weight to my car. Really depends on your electronics.
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Old 10-01-2016, 03:43 PM   #42
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Where can I buy one and what is the price?
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Old 10-01-2016, 04:03 PM   #43
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Quote:
Originally Posted by Skiddins View Post
Almost readu.
How is your left to right balance?

Speedo, battery tubes, servo and wiring all to the one side! Fan offsets a little, but I would have thought not enough....?
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Old 10-02-2016, 12:21 PM   #44
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Quote:
Originally Posted by Skiddins View Post
Almost ready;


I think I have 6mm more spacers on the left rear than the right to make the track even on both sides.

I measured from the small balancing hole in the centre of the rear pod.
What bumper is that? My son ran his for the first time last Friday, unfortunately the front end is still sloppy
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Old 10-02-2016, 04:07 PM   #45
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Quote:
Originally Posted by cplus View Post
How is your left to right balance?

Speedo, battery tubes, servo and wiring all to the one side! Fan offsets a little, but I would have thought not enough....?




Quote:
Originally Posted by BILKO1 View Post
What bumper is that? My son ran his for the first time last Friday, unfortunately the front end is still sloppy
It's an old CRC from when I first raced 1/12
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