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Body drilling question

Discussion in 'Ask The Pros' started by Dan Hodge, Feb 9, 2020.

  1. Dan Hodge

    Dan Hodge Pack Champion

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    When building my car I use a 1/4 basswood body. Rear wheels canted 3 degrees raised NDFW all drilled with the Silver Bullet. The problem I have had when drilling is that with a 1/4" body the lifted wheel bearing is high enough that it cuts a groove in the top of my body. So I have taken to getting a 1/32" strip of balsa and placing it under the front of my body when I drill the front axle holes to lower the holes just enough. However it's not there when I drill the rear axle holes. I have noticed that I get some wiggle in my cars after they leave the downhill run. Is it possible the 1/32" lowering of the front wheels is throwing my rear cant off just enough to cause this wiggle? If so will adding the 1/32" strip to the entire length drill jig correct it? Any help would be most welcome. Please and thank you.
     
  2. Prozach2

    Prozach2 District Champion

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    I’ll preface this by saying that I’m a beginner, but this is what I was told recently. I use the SBE to drill my holes. If the DFW axle is bent, and the NDFW axle isn’t, you don’t need to raise the hole for the NDFW. That bend in the DFW axle should be enough to lift the NDFW.
     
  3. Castoro Racing

    Castoro Racing Council Champion Pro Racer

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    You are throwing off your alignment by shimming the front in the manner that you are. If you have enough of a bend on your DFW you shouldn't need to use the lifted wheel bushing.
     
  4. Castoro Racing

    Castoro Racing Council Champion Pro Racer

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    Could be alot of other things causing the wiggle. If you post more details we could help you through it.
     
  5. Prozach2

    Prozach2 District Champion

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    Post some pics
     
  6. Craigs Cruzer

    Craigs Cruzer Pinewood Ninja

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    Knowing the amount of steer you have would also be helpful.
     
  7. Dan Hodge

    Dan Hodge Pack Champion

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  8. Castoro Racing

    Castoro Racing Council Champion Pro Racer

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    Link didnt work for me
     
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  9. TRE

    TRE PWD Royalty Pro Race Winner Pro Racer

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    Most scout builds need more than 4 in over 4 feet because you are using smaller axles..unless you have some perfect wheels you will probably need 5 or 6 inches of streer and real tight gaps
     
  10. Dan Hodge

    Dan Hodge Pack Champion

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  11. Prozach2

    Prozach2 District Champion

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    Again, I’m fairly new at this also, but it looks like your front wheels and rear wheels are an equal distance apart. I think that if you cut 1/16” off of the car body for your NDFW, that will help a lot. Looks like you cut a lot off (more than 1/16”), but you cut it off in front of the axle). Here’s a photo to illustrate. The axle should be moved 1/16” (red arrow). You have it where the blue arrow is. I think that makes a really big difference.
     

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  12. Dan Hodge

    Dan Hodge Pack Champion

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    The front wheel is inset it's just that it was cut as a taper in and not a square cut.
     
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  13. Thinkin'Bout Racin

    Thinkin'Bout Racin National Contender

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    I agree ...the Cubs I help all are using the BSA axles with crimps. They normally need about 5" - 6" of steer. They are also using stock uncut wheels.
     
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