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Swap 1/4 Mile Thread

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    Bump. Nobody drags their cars these days?
    1989 325i Alpine s52 coupe
    2003 540i M-Sport 6 speed
    2003 X5 3.0


      I never knew about this thread. Id like to make it to the track this year for some passes, but Im 2.9L M20 anyways...

      Instagram: Reichart12


        I'd like to get the OBD2 SC S52 to the track this year, but we'll see.


          M60 1/8 mile

          reaction: .5557
          60 foot: 2.0717
          330 foot: 5.7742
          1/8 mile: 8.7424
          1/8 mph: 83.30
          est 1/4: 13.5-13.7

          The car: 1987 325e with m60B40, dudmd chip, mustang injectors, 5 spd ZF, 3.15 torsen diff, 225/50zr16 toyo RA1 on the rear with -5 degrees of camber.

          lots of wheel hop out of the hole even after warming the tires up several runs back to back. I know the rear camber is killing me.
          hopefully with the rear camber adjusted out and some smaller diameter drag radials I could get a 8.4 - 8.5.


            Back when I had my orange car it had a lot of wheel hop as well. Unless you get a proper setup, it seems to be common with these cars.

            With any luck this year I will finally be able to get the supercharged S52 down the track.


              as far as I understand it, wheel hop is mostly a function of shock rebound & spring rates.
              Build thread



                M20B25 in E21 body:
                60ft: 2.362
                1/8sp: 116,7
                1/8t: 9,866
                1/4sp: 149,7
                1/4t: 15,163

                Racing excuses: max ign. advance was 28 deg, crappy open diff and street tires, full interior.

                Engine specs: M20B25 with ported cyl head, headers and VEMS ems.

                I guess i could do 14s since i had the cyl head rebuilt now (it had 5 bent intake valves! ).


                  1/8th mile 1987 325e sedan full interior, air conditioning, m30b35/G260 swap, 225/50/16 tires, Microsquirt,100 hp nitrous. I know my 60 foot needs work. Sent from my SM-G960U using Tapatalk
                  Last edited by st.petebiodiesel; 09-12-2019, 05:33 PM.


                    I just started doing 1/4 miles runs with my car. My 60ft is terrible because I was spinning till 3rd. The car is a 325ix turbo with a dct. I'm hoping to run a high 10 this year. Sent from my SM-G892A using Tapatalk
                    Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

                    IX being restored here

                    Ix turbo build here


                      Tossed some drag radials on my sedan Needless to say it helped a lot. Equates to a 12.6 sec 1/4 mile. My goal is to get this car to run a 11.50 with more nitrous and some weight reduction. Sent from my SM-G960U using Tapatalk