Wheel Bore Prep Testing

[ninjarabbi1997]

I wanted to test out the speed of three different wheel bore/axle preps to see which is the fastest. Would this procedure work? Or is there a better way?

I would use 3 sets of 92X axles and 3 sets of the 2.3g wheels from John. They are all polished and prepped as close to as the same as possible.

1. Run the car, set the alignment, get times for combo #1.
2. Remove the rear wheels, but keep the FDW and axle in place to not change the alignment. Install new rear wheels with same gap as the first run.
3. Repeat step 2 with third set of rear wheels.

Will this tell me which is faster, or are there too many variables? Thx!

 

[Kinser Racing]

I think you've eliminated most of the variables by keeping the DFW in place thus keeping the tune as close as possible. It seems pretty sound to me.

 

[bracketracer]

I don't know how serious you are planning to get, but I thought this was interesting:
http://www.pinewoodderbyonline.com/post/how-do-you-know-where-you-are-6238431

I built one as depicted in the post and I'm building another one to test BSA style wheels in the DFW position. It really surprised me how much this car slows when you switch out one bearing wheel for a 2g SS wheel.

 

[Kinser Racing]

I forgot about that thread. /images/boards/smilies/smile.gif

 

[Skippy Kicky]

I think that plan sounds awesome. If you wanted to use all three wheels I purchased a plug-n-play drilled block from John for testing. It is awesome for R & D.

 

[ninjarabbi1997]

Skippy, that's brilliant!