Announcement

Collapse
No announcement yet.

Carrera tuning

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Carrera tuning

    I have the Gulf blue Carrera Porsche 904. Beautiful car, but it needed some fine tuning. In no special order here’s what I’ve done.
    The guide flag post is a loose fit in the chassis, which causes the flag to wobble. The design also puts more weight on the front tires than I like. A friend sent me a prototype file for an adapter, which I printed at my library:
    Click image for larger version

Name:	flag adaptor.png
Views:	196
Size:	167.9 KB
ID:	97209


    I also printed a guide flag that I found on Thingiverse (“Slot car guide” by wayne69x):

    Click image for larger version

Name:	3dguide_flag.jpg
Views:	175
Size:	13.9 KB
ID:	97210

    I then carefully removed all the Carrera parts and started cutting/filing/sanding the adaptor and flag until they were a good fit. I used some shims to set the front tires .010” off the track, then used self-leveling silicon sealant to hold the adaptor in place. Not as strong as CA or epoxy, but I can revert back to the original Carrera parts pretty easily:
    Click image for larger version

Name:	carrera1209.jpg
Views:	169
Size:	996.6 KB
ID:	97211
    While doing this work I also simplified the wiring:

    Click image for larger version

Name:	carrera1210.jpg
Views:	166
Size:	1.15 MB
ID:	97212
    If you held the chassis in one hand and grabbed the rear tires in the other, you could feel a good deal of play. I could see the bushings moving around in the chassis, as well as the axle moving in the bushing. I decided the first step was to glue the bushing in place. I again used silicon sealant, it holds well enough and is very easy to remove if needed:

    Click image for larger version

Name:	1225.jpg
Views:	166
Size:	711.6 KB
ID:	97213


    Once the bushings were glued I checked the play again, and it wasn’t bad. So for now I’m not going to bother with the "CA fix" to remove axle slop.
    Next I spent some time using my fairly new Tire Razor, which I’m pretty happy with:

    Click image for larger version

Name:	1223.JPG
Views:	177
Size:	2.23 MB
ID:	97214
    The last modification was magnets. The car comes with a long bar magnet in the middle, and a somewhat shorter one in the rear. Both have metal shims, a nice touch that gives you more options. However, those two magnets are way too much downforce for me. I like my cars to drift, so I use only light amounts to try to get them close to the same level of performance.
    I removed the rear bar and set it aside. I then removed the middle bar, and replaced it with two old “dot” magnets. If you’ve been around for a long time, you may remember them from the Scalextric Kodak NASCAR:

    Click image for larger version

Name:	carrera1212.jpg
Views:	163
Size:	429.0 KB
ID:	97215 Click image for larger version

Name:	carrera1215.jpg
Views:	164
Size:	797.1 KB
ID:	97216

    That wasn’t quite enough. Poking around I found a shorter magnet that I pulled from another Carrera:

    Click image for larger version

Name:	1218.ajpg.jpg
Views:	162
Size:	819.1 KB
ID:	97217


    Because it was so much more than the dots, I first tried it with the metal shim between the magnets and the track:

    Click image for larger version

Name:	1222a.jpg
Views:	160
Size:	932.2 KB
ID:	97218
    That was pretty good, but for “performance equalization” I ended-up with the shim on top:

    Click image for larger version

Name:	1216.jpg
Views:	162
Size:	846.3 KB
ID:	97219 I'm much happier with how the car drives now. I’ll live with it like this for a while, and then decide if it needs any other tuning.

    Ron

  • #2
    Nice set of tips and photos for tuning the Carrera cars.

    Comment


    • #3
      Just so you know the guide flag adapter is already available .

      Clover Leaf Racing 7746 Clyde Road Fenton MI 48430 U.S.A. 313-473-SLOT
      web site: https://cloverleafracing.com Facebook: http://www.facebook.com/cloverleafracing
      YouTube Chanel: http://www.youtube.com/user/CLR132slots?feature=watch

      Comment


      • #4
        Here is the other version also
        Clover Leaf Racing 7746 Clyde Road Fenton MI 48430 U.S.A. 313-473-SLOT
        web site: https://cloverleafracing.com Facebook: http://www.facebook.com/cloverleafracing
        YouTube Chanel: http://www.youtube.com/user/CLR132slots?feature=watch

        Comment


        • oz10k
          oz10k commented
          Editing a comment
          Thanks, these look great and that's a reasonable price! I'll pick one up for my next project.

      • #5
        Hey, well done. Appreciate your post.

        And wow...the button mags from the first NASCARS! (I remember)

        Here is the link to the full playlist I did for the GT cars. I used the CG Slotcars adaptor.

        https://www.youtube.com/playlist?lis...BcgQpNJNeZfqN-
        -Harry

        Comment


        • oz10k
          oz10k commented
          Editing a comment
          Wow, excellent playlist Harry!
      Working...
      X
      UA-149438709-1