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My X4 '23 OGR Stock Setup

5/5/2024

 
xray x4 parts canada mcleanrc
​Here's my OGR stock setup and some notes for my X4 '23 as it finished the 2024 season.  This is just a reminder for myself but you may find it helpful as well
x4_23_ogr_setup.pdf
File Size: 2287 kb
File Type: pdf
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The car is sometimes a little loose for the first few laps.  A few good warm up laps helps reduce this

I sauce two heats prior to my race (eg. if I'm racing in heat 6, I sauce at the start of race 4).  I gently wipe the sauce off one race prior to my heat so that it is mostly dry when I put my car down

If I need more grip, I clean the tires with sauce long before my race but this makes the car prone to traction rolling so be careful if dong this

I'd like to look for a little more initial and mid corner steering and possibly free up the rear end a little.  It's difficult to get it to transition quickly in chicanes - like the chicane on the left side before entering the straight

M17 Settings:
Steering DR 93%.  I click +/- of DR makes a big difference.  Experiment with it
Steering Curve -5%
Brake DR 76%

​WLE Settings:
Picture
Picture
Things to try next season:
Steering curve.  I use the negative curve to hide some of my jitters but try removing some if possible
Drop the body 1mm front and rear
Thinner Ackerman shim - should add more initial and may help with the chicanes 
Front bump steer shims - Experiment with less shims.  Should increase in-corner steering
Rear toe from 3.0 to 2.5 - Should help rotation and corner speed but may make the car too loose.  Add Front droop as well to bring back some rear grip?
Lower arm roll center shims - try going from 2mm to 1.5mm.  Lower roll centers should increase grip on that end of the car.  May give more steering and also more rear grip.  Experiment and see

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