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XRAY X12 2017 1/12 Pan Car

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Old 03-17-2017, 02:50 AM   -   Wikipost
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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 03-03-2018, 10:48 PM
  #256  
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Originally Posted by JeffofSpace View Post
50/76 is good for 17.5...rollout of about 81-83 w tires at about 41 to 42mm. Depends on motor of course.
Ty very much for the reply. Looks like i'll land on 13.5 if thats what aus has decided is stock spec. Illbe using the tyres recommend above but cant work out there size from the links
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Old 03-04-2018, 01:19 AM
  #257  
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Originally Posted by Maraach View Post
Ty very much for the reply. Looks like i'll land on 13.5 if thats what aus has decided is stock spec. Illbe using the tyres recommend above but cant work out there size from the links
they are 46 mm out of the packet. We all run them new out of the packet in aus. low grip no need to true them down

We raced today on a big open nitro track for the first time and were in the high 80s low 90mm for rollout (80 spur 48-52 pinion) 64 pitch
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Old 03-04-2018, 04:44 AM
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What height do you usually run on asphalt?
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Old 03-04-2018, 09:53 AM
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outdoors asphalt, we run BSR spec front, xxpink or pinks rear tires out of the package and run cars at 4.5-5mm. as tires wear over (3-4 at track i run on) several races i have gone as low as 3.7mm.
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Old 04-14-2018, 06:12 PM
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Originally Posted by DavidNERODease View Post
I love these Xray front ride height shims! Why can't the rear use something similar!
I no longer hate the rear ride height adjustment. It's not wonderful mind you but if you remove the rear axle like you would on a car with the plastic ride height inserts... fiddling with the shims is much easier with the axle assembly removed.
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Old 04-15-2018, 06:27 AM
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Originally Posted by DavidNERODease View Post
I no longer hate the rear ride height adjustment. It's not wonderful mind you but if you remove the rear axle like you would on a car with the plastic ride height inserts... fiddling with the shims is much easier with the axle assembly removed.
only way to do it. Undo the non drive side and then do each carrier independently
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Old 04-16-2018, 08:09 AM
  #262  
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Exactly. I feel a bit silly for not realizing this until now LOL. Shims like the front would still be awesome however. VBC did it on their car.
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