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Old 03-02-2015 | 02:11 PM
  #22964  
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funked1
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Some questions for the M-chassis hive mind:

M-05 V2 Pro, built for TCS rules, stock except for M-05 ball diff. Killshot RPM 21.5, Peak Racing 4500mah stick lipo, Mugen CR-X Pro body, S-Grip radials. Kit setup except lowered to 5mm ride height and a little bit of front toe-in. No tire sauce.

I race at a medium grip asphalt track, and when I turn in to the flat out right hand sweeper at the end of the 170-foot straight, the car rolls over. I was able to catch it once and it looks like what's happening is the inside rear wheel lifts, the car oversteers suddenly about 45 degrees, loses a bunch of speed, then suddenly hooks up again and rolls over. The car handles great everywhere else on the track.

My initial reaction is that it's an aero problem because it only happens at maximum speed. Since I'm following TCS rules, I can't just slap a wing on it to get rid of the aero loose condition.

So I should tune the oversteer out with chassis settings. Seems like I could just go stiffer in the front and softer in the rear, and/or add some rear camber. I was just wondering what the greybeards would do.

Also any recommendations on mounting a motor fan? I want to be able to max out the timing and have some temperature margin. There is a 3-Racing fan with mount but it is out of stock everywhere. I'm thinking of just taking an R1 Wurks fan and 3D printing my own mount. Is that TCS legal?

Last edited by funked1; 03-06-2015 at 11:07 AM.
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