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Xray X12 20

Old 03-17-2020, 05:35 AM
  #61  
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Originally Posted by antlockyer View Post
  • 38.2mm front tyre diameter with superglue on the sidewall to prevent grip roll
  • An alternative front end fitted that was made by Mr Cheng, steering throw is measured on a setup station and usually expressed as degrees of inside wheel at maximum steering travel
  • Uses the Avid kingpin which is an alternative design that I think does away with the upper eyelet. Uses Green spooge grease as a damping agent (run damper tube oil on there to calm the car down)
  • A 0.5mm shim is under the front side link ball stud, this is supposed to add some rear steer to the car and make it rotate harder
  • The damper tubes have a 2mm shim under the outside, this makes them fractionally softer I believe, but happy to be corrected there.
Actually, front tire diamter is 39.2mm the 38.2mm is the glue on it.
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Old 03-17-2020, 02:08 PM
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Please post ideas what you would like to see changed on the 2021 car thanks.
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Old 03-25-2020, 05:40 PM
  #63  
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Wait until you see the updates on the 2021.
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Old 03-26-2020, 09:45 AM
  #64  
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Originally Posted by jason cheng View Post
Wait until you see the updates on the 2021.
the drawings look good so far 👍
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Old 03-26-2020, 04:52 PM
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Its going to be cash $$$ money
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Old 08-06-2020, 11:17 PM
  #66  
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Just finished 75% build. Went together super smooth. My 1st Xray. Starting with Robbies setup for stock post above. Looking forward to returning to the track
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Old 10-27-2020, 06:34 PM
  #67  
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This is setup I ended up running at the Halloween classic. Very easy to drive.
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Old 07-13-2021, 04:40 PM
  #68  
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So, I'm running the 2020 car, in 1/12 stock using 13.5.

Tyres are Ulti, J medium front, and Z soft rear.

We run low/medium grip asphalt, and am testing a gear diff, currently filled with 7k oil. Struggling a little on corner exit with rear grip, particularly forward bite.

For anyone running the gear diff on asphalt, was there anything in particular you found that helped?
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Old 08-28-2021, 06:33 PM
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Does anyone know the weight difference between the graphite rear axle and the steel rear axle for the ball diff? TIA!
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Old 08-29-2021, 07:38 AM
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Nova you're gonna have trouble getting that gear diff to work well you can try going to 3K that may help a little but a ball diff will be your best friend . the blue stripe Jaco tires work very well outdoors as long as your track is prepped . Or the purple striped they're the same foam compound.. We race at the Coral Springs RC track you can Google it ....outdoor asphalt and are currently running 13.5 LMP..
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Old 08-29-2021, 07:44 AM
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In my opinion you guys should not use someone else's setup, I have never found someone else's set up to be as fast as the one that is tailored to myself....you should always start with a Box stock kit setup, it is the best starting point , then make changes To the car depending on what you want the car to do.... read the manual and see what the different adjustments do and adjust them yourself, this is easily proven as a pro Racer will hand me his radio and I cannot drive his car and he is not as fast with my car therefore his setup will not work for my driving style everyone's driving style is different, there are several drivers who can just grab a radio and be fast with it but they have to tune it to their style to get that last little bit out of it ....most setups I have tried from other drivers do not work for me, most people tend to get frustrated and dump the chassis thinking it's the car..... don't fall in that trap.... it takes time and patience to get the car set up properly to do what you wanted to but once you do you'll never look at someone else's set up ever again and you'll be way faster I promise you......now go get fast.....

Last edited by fat500; 08-29-2021 at 10:44 AM.
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Old 08-29-2021, 10:49 AM
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0010 I use the graphite Axel as a tuning aid, not for weight, if you're running stock the rear axle will spool up faster but it will affect your braking as it will also slow down a lot faster, it also changes the weight bias of the car over the rear pod which can affect grip and weight transfer. If you're racing in the GT 12 class it is best to use the graphite axle as you need every tenth you can get .....but if you're running anything faster 17-5 or 13-5 I would stick to the steel, there is a substantial difference in the weight savings of the carbon.
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Old 08-30-2021, 07:32 AM
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Originally Posted by fat500 View Post
0010 I use the graphite Axel as a tuning aid, not for weight, if you're running stock the rear axle will spool up faster but it will affect your braking as it will also slow down a lot faster, it also changes the weight bias of the car over the rear pod which can affect grip and weight transfer. If you're racing in the GT 12 class it is best to use the graphite axle as you need every tenth you can get .....but if you're running anything faster 17-5 or 13-5 I would stick to the steel, there is a substantial difference in the weight savings of the carbon.
Thanks. I'm actually running a '17 X12 and it is about 50 grams over weight! I definitely figured the lighter axle would accelerate faster as well, so I think it is a win/win.
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Old 08-30-2021, 07:38 AM
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Crazy car man!Love it
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Old 08-31-2021, 08:55 PM
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Thanks fat500. I'll drop the oil weight down, a couple have suggested even running 450cst shock oil. But otherwise I'll pack it away for a carpet race, though there's very little of that here.
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