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autox video (05/13/07)

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    autox video (05/13/07)

    This was in Everett/Boeing - a little wet, but not too bad (par for the course in washington). I also hadn't slept at all, but I still managed to pull off one of the best runs I've ever had. :)

    here's the link:
    http://www.325ix.com/movies/autox_05-13_everett-L.wmv (29mb)

    I repositioned the camera this time (seat all the way forward and raised up) so you can actually see the course now..

    anyway, my first run was a disaster. I was experimenting with tire pressures and bumped my rear tires up to 42psi (fronts at 45). previously I had them much lower, and it wasn't working since the balance of the car has changed drastically from last year. well, the combination of wet pavement and cold hoosiers didn't work out so well either, so I had no rear traction from the very start. when I shifted to second I immediately lost rear traction and took out a cone.. and the rest of the run wasn't any better!

    I bumped the rears down to 40psi for my 2nd run and it worked better. I wasn't launching too hard yet (figured no need since it goes right into a slalom). I got a clean ~47 and I knew I could go faster...

    3rd run I got a little too hot in the second slalom, and took out two cones.. I think I recovered smoothly though, and I nailed the last corners perfectly. I was using the same pressures from the second run, but my rear tires were ice cold.. I wasn't launching hard enough!

    4th run it just came together. I set the rear pressures at 39, with the fronts still at 45. I launched at about 5500rpm and buried the throttle to get the rear tires hot, and it worked! I had just enough rotation that I could get on the throttle a little earleir and still control the oversteer. I got a little hotter than I wanted to at the stop box, but I didn't hit anything and managed 44.487 clean.

    I was less than 4/10ths away from a guy I've been competing with for several years now (a VERY good driver in a well setup Integra LS), which made me feel pretty good - I don't think I've ever been that close to him before. fastest guy in my class ran ~43 seconds.

    oversteer in an ix is tricky and I haven't mastered it yet - the problem is the VC, which is both a blessing and a curse. because it doesn't lock up immediately and allows some rear slip, it gives me the ability to rotate the car with the throttle (you'll never get this in an audi).

    but also because doesn't lock up immediately, if I don't straighten the front wheels from countersteer to the direction I want to go *just when the VC locks up* the front wheels will suddenly grab and pull me in whatever direction they happened to be pointed to.. so if I'm countersteering hard, well, you can see what happens in the video.. lol. It's only a matter of timing, but overall I really liked the way the car felt yesterday!

    comments... suggestions.. haters.. whatever. enjoy :)
    Build thread

    Bimmerlabs

    #2
    Looks like a fun course, too bad it was wet out. You running the hoosiers or BFGs? Would changing the 4.10 VC rear to a clutch type help at all?
    :: PNW Crew ::
    '87 325 4dr, '74 2002

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      #3
      Originally posted by backtrail69 View Post
      Looks like a fun course, too bad it was wet out. You running the hoosiers or BFGs? Would changing the 4.10 VC rear to a clutch type help at all?
      hoosiers.. they're better than the BFGs for this even in the wet. it's only really in pools of water that they are a problem, but there wasn't too much of that. I actually really enjoy wet autox's - it means I get to be much closer to the fastest drivers out there :)

      I don't think BMW would have bothered with a VC rear diff if it wasn't better suited to AWD. I don't know though. but when I'm talking about the VC, I mean the one in the center differential - I think the rear is working just fine and hasn't posed a problem to me yet.

      I also noticed that when some cars were launching hard they were getting a lot of wheel hop - but mine is really smooth. I've heard this contributes to most of the damage from hard launches. I don't like driving it that hard but she seems to be taking it fine. :)
      Build thread

      Bimmerlabs

      Comment


        #4
        Looks good, nice to see ur 2.8 idles the same way as mine.. gotta love it

        Comment


          #5
          Looks good and you sure that car isn't rwd??? Nice to be able to get the car to rotate. I think we are gonna try to go up to the Boundary Bay event next Sunday the 27th. If you want to caravan up it should be fun.

          Comment


            #6
            Id like to go to the boundary bay event as well with my ETA! I would be down going up there...since its so damn close to Bellingham..
            :: PNW Crew ::
            '87 325 4dr, '74 2002

            Comment


              #7
              nice! looks like it was a lot fun man.

              the car sounds really nice, very smooth!
              IG: deniso_nsi Leave me feedback here

              Comment


                #8
                I'm up for the boundary bay event, assuming I can get the rest of my bodywork finished by next friday. I need to have my passenger door blended and front spoiler painted before the E30 picnic!
                Build thread

                Bimmerlabs

                Comment


                  #9
                  very nice i have yet to drive an awd car like a man....what engine mods?!?!!!
                  nm found them. love how you completely own second gear...my car doenst do that :(
                  No more e30s for me.
                  88 black BMW OBDII 332is dedicated track [sold]
                  88 BMW OBDII bronzit 332is [RIP 03/08]
                  91 BMW 325i [sold]
                  86 Corolla 'Ae86' HB 20v trd [sold]
                  http://youtube.com/watch?v=pTj7Hn9v5Rs

                  Comment


                    #10
                    engine mods? what do you mean? :p
                    Build thread

                    Bimmerlabs

                    Comment


                      #11
                      Soon to have a SUPER stock mod done. :D
                      :: PNW Crew ::
                      '87 325 4dr, '74 2002

                      Comment


                        #12
                        Super stock mod? Which car?

                        Comment


                          #13
                          Nice video nando! Rand and I were working station 4 at the time, the last uphill lefty before the finish, and you were running in there FAST! It was fun watching you enter that corner, looked like you were right on the edge. We thought you blew it on that 4th run coming into the stop box...you cant hear it in the video but our station yelled "NOOOOOO...YEAAAHHHH". Nice save. Between you and DJ it looked really close, but we thought you had the edge on him, at least in that part of the course.

                          Your car looked like a handful, kinda like mine used to be (I’ve tamed it a bit) but its tough to gage on that course. Most of the corners are off camber, undulating and wet on top of that...you could appropriately use that same course for the Oversteer event coming up in June.

                          Great video!
                          Justin
                          sigpic

                          Comment


                            #14
                            Cool to see more NORTH PNW on the site!
                            :: PNW Crew ::
                            '87 325 4dr, '74 2002

                            Comment


                              #15
                              Fast hands. I hate the days where it's only somewhat wet....either all the way or let it be dry.
                              Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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