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Post by bsadad on Apr 9, 2009 8:18:17 GMT -6
 They are all running the same wheels and same axles except the last car in line it is running matched set of mold #6. The first car run a 2.43 to 2.45 on average the cog is a 1.5. Second car Run a 2.47 to 2.49 on average the cog is 1.25. Third car run a 2.50 on average the cog is 1 inch. Car four ran a 2.48 to 2.49 on average the cog is 7/8 the wheels on this car i sanded and preped myself with derby worx tools. The track is a 31ft wood track. |
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psycaz
Addicted to Speed
Posts: 86
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Post by psycaz on Apr 9, 2009 12:51:15 GMT -6
Any more info? Railriders? Canted wheels? Positive/negative?
Is this your track or packs? If yours, do you have more sensors available? If so, I would consider placing one at the bottom of the slope. It will let you see if one is slowing down more that the others. Sounds like it would show, but sometimes, it is not what it seems. You could be losing that time at the start and not the flat.
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khouse
Head in the Pine
Posts: 199
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Post by khouse on Apr 9, 2009 21:10:24 GMT -6
From left to right your 1st and 3rd car has the most potential. This is because your wheels are toward the back. You can load up the weight toward the back more with these cars. If you can move the weight further back on all the cars then do so. 1/2 to 5/8 would be a good start on the COM. Of course you need to 3 wheel rail ride.
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Post by bsadad on Apr 9, 2009 22:04:14 GMT -6
Well the track belongs to the pack. We are not allowed to 3 wheel all must be touching.The 1st car is defendantly the fastest. And you would think 3rd car would be second but the 2nd car out run it by half car length. Cannot move weight but will try to move wheels back towards rear more their is about 2oz rite in front of rear axle and 1oz on rear of all cars.
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Post by bsadad on Apr 9, 2009 22:11:02 GMT -6
None of the wheels are canted.Just received the tool to do that but unsure if i have the time or knowledge to do so before district race.
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khouse
Head in the Pine
Posts: 199
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Post by khouse on Apr 9, 2009 22:25:11 GMT -6
You can have your three dominant wheels running with the full weight of the car. Then the front non dominant wheel needs to be adjusted to just barely touch the track. Then turn your front dominant wheel into the rail at about 4 inches in 6 feet. Move the rear wheel that is behind your front dominant wheel out some buy pulling the axle out about 1/8 inch. This way it won't touch the rail when rail riding. Simply put a slight 2.5 degree bend in the rear axles. Bend it at .350 inch from the head. Then insert the axles and wheels. Turn the bends toward the sky. Adjust both axles where the wheel gravitates to the head of the axle in both forward and reverse. Then put a lesser bend in the front dominant wheel. Turn that axle where it looks down. Then with slight adjustments make your car turn 4 inches in 6 feet. Make sure your other front wheel just touches the track by only a hair. You can turn the axles with some nedle nose pliers, special axle pliers or the K-Groove.
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Post by bsadad on Apr 12, 2009 23:27:49 GMT -6
Will try to bend the axles on one of the cars and race it on my test track to see how it does. What do you think about sanding the inside hub with 2500 and thaking it up to about 8000 grit. Anybody know where the cheapest place to by 2500 to 12000 grit paper.
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khouse
Head in the Pine
Posts: 199
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Post by khouse on Apr 13, 2009 5:34:58 GMT -6
You really only need to polish the inside rim of the front dominate wheel. That is the one that's going to rub.
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