Ouch! Straight alignment help....
- Thread starter derbynutz
- Start date
Hold on. I always thought rail riding and rain running were synanimous. Was that just a joke? What is the difference?
I am having a similar problem with my son's car. When it got to the straight the back wheels drifted bad, "death wiggle". His car still smoked everyone in the pack on an aluminum track but the seems were horrible. Our car won every heat and the only time it almost got beat was when it jumped on a bad seem. They use the same track for districts but I am hoping the main guy that coordinates that will shim the seems to line up better. When we put it together for the pack most of the seems were clamped using those large black clamps used for office paper.
For his build setup we didn't do any canting but polished the axles really good and burnished the wheels. It is a 3 wheeler that naturally turned toward the lifted wheel but I didn't do any tuning for the pack but now that I have learned more and saw it run I wanted to tune it up better. I think it may be too aggressive I just rolled it on a 3.5 ft table leaf and it went at least 5". I will be bending the DFW to start tuning the steer. I am debating whether to cant the back axles and try to tune them so they run true. I think they are fighting each other and the back wheel opposite the DFW pulls into the rail too. If I don't use an axle bending tool is it dangerous to try to do that for the 2 back wheels, cutting a notch and tapping with a flathead and hammer?
ngyoung said:
OMG thank God I got to you before Kinser did. First off, most if not all people that use this for use rail running. Bending the DFW axle and using this to tune the car and drilling the rear wheels at a cant. Rail Riding is bending the rear axles and using those to tune, much more difficult. In theory they can do the same thing, but there's so much more room for error using Rail Riding than Rail Running.
Rail running- DerbyDad4Hire drilled rears canted.
Rail riding- Derby Worx bent rear axles canted.
I think that argument is dead now. You only bend a rear axle when have no other choice to save a car.
Rail riding- Derby Worx bent rear axles canted.
I think that argument is dead now. You only bend a rear axle when have no other choice to save a car.
I can just picture John reading my post when I said I used a treadmill. Shaking his head and laughing hysterically at me
Hey, if you already had a treadmill it is an understandable mistake. If you went out and bought a treadmill to tune your car that is a different story.
- Nov 24, 2011
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The whole treadmill thing was where you and I got off on the wrong foot wasn't it? /images/boards/smilies/tongue.gif
- Nov 24, 2011
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That sad part is he takes advantage of pinewood derby makers that don't know any better. At least John backs his stuff up and has proven he knows what he's doing.
