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Cockroach Suspension Logs/Notes 10/14 MCS Tested

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    #31
    I put a rear bar in and hated it. So it's back to stock bar.

    I kept two constants to have the testing as back to back as I good for the MCS's. Old tires I ran on last time and swaybar at full soft in the front, like last time.

    Happily say the dampers felt great. Dampers are set to 10/11 clicks from soft, front and rear respectively. This is what I found testing the car on the street and for keeping the chassis composed or dips dives and bumps. It's stiff but the weight is managed and not that harsh. Worked great.

    I am hoping once I put better tires on it will have same balance and tire wear characteristics just with more grip.

    Car feels way better with a 265/35R18, I am not sure what tires I'll switch to since they no longer sell Direzzas. I was very happy with wear. Until I get x10 wheels, I do not want to touch 275s again. Typically I am used to E46 M3s wearing out just the fronts at about double the rate of rears, from my dads car and others I have seen at TWS. Mine seems very well balanced. All 4 tires are about done at the same time. No rotations, no flips and 3 events with thousands of street miles.

    It is pretty dicey on worn tires tho. I like a car that is biases towards oversteers. The front started to get eaten up because the rears were so bad I just wasn't being as aggressive on the throttle so getting push in Diamonds edge.

    Tire wear:
    The rears:
    Untitled by Sam DaJam, on Flickr
    Untitled by Sam DaJam, on Flickr

    RF:
    Untitled by Sam DaJam, on Flickr
    Untitled by Sam DaJam, on Flickr​

    Getting a little too comfortable sliding the car, video a wife got of me chasing a E46 and sliding all the way out to the wall:


    Struggling to apply power, but balance is definitely not towards understeer in constant state cornering.




    Last but not least, trying to impress my friend Haas old SCCA Champion on my homemade slicks with the sun in my eyes. He is my neighbor so we carpool to the track. I got a "nice" and thumbs up for one of the sections so I take that as a win. Last part was going to the fastest lap of the weekend but hit traffic.
    Build Thread:
    https://nam3forum.com/forums/forum/m...-new-pb-at-msr

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      #32
      Originally posted by samthejam View Post
      I put a rear bar in and hated it. So it's back to stock bar.


      Struggling to apply power, but balance is definitely not towards understeer in constant state cornering.​
      Was that with the stock rear bar or aftermarket?

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        #33
        Originally posted by elbert View Post

        Was that with the stock rear bar or aftermarket?
        Stock bar, struggling to apply power I believe mostly was the tires. Car was already upset just turning laterally at that speed and I am poking the bear playing with gas. Through the slower sections of the track didn't have too much trouble.

        Aftermarket bar got removed within 24 hours after some testing at my local spots. It just made the car feel nervous in a bad way. Car just felt very very wrong. I also suspect it was binding as the hotchkis endlinks were too long. If I were too experiment again, after further research I'd go with a GC one looks like it goes as soft as CSL rear swaybar. More adjusment and just looks better made.
        Last edited by samthejam; 10-14-2025, 08:35 AM.
        Build Thread:
        https://nam3forum.com/forums/forum/m...-new-pb-at-msr

        Comment


          #34
          This guy has good stories on his IG, highly recommend.
          Instagram: @logicalconclusion

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