JustaDad
Addicted to Speed
1Cor 9:24
Posts: 79
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Post by JustaDad on Jan 13, 2009 12:05:03 GMT -6
???I have cut my "dad's class" car wheels to 1/16", but they are wider at the hub about 1/8". I have drilled holes into the "spokes" to lighten them further. When I did a dry fit with them on the polished axles last night, they were loose. Way too much play. I did not do anything to the bore of the hub except thin it? Should I still cant the axles? Should I fill in the hub and re-drill it to tighten up the gap? If yes, what should I use? I have never used RS wheels before so I'm not sure how real wheels fit. We have to use what comes in the kit except weight, so I'm not allowed to buy any custom wheels.  Could someone shed some light on this for me? Thank you, Mark |
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beakerboysracing
Head in the Pine
You can pick your friends, you can pick your nose, but you can't flick your friends across the room.
Posts: 167
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Post by beakerboysracing on Jan 13, 2009 13:17:24 GMT -6
???I have cut my "dad's class" car wheels to 1/16", but they are wider at the hub about 1/8". I have drilled holes into the "spokes" to lighten them further. When I did a dry fit with them on the polished axles last night, they were loose. Way too much play. I did not do anything to the bore of the hub except thin it? Should I still cant the axles? Should I fill in the hub and re-drill it to tighten up the gap? If yes, what should I use? I have never used RS wheels before so I'm not sure how real wheels fit. We have to use what comes in the kit except weight, so I'm not allowed to buy any custom wheels. Could someone shed some light on this for me? Thank you, Mark The rule of thumb for razor is straight up, no cant. The standard axles fit loose on the standard wheel. I like to have about a 5 thousands of and inch diff. Standard bore is around .094 and standard axle is around .086, so you can see how sloppy they can be. I would lube it up and see how it spins. You could try and fill and redrill, but you need something pretty precise to get the hole centered again, otherwise you get a bad wobble as the wheel oscilates as it rolls down the track. You might try a teflon insert. Scott Beakerboys |
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JustaDad
Addicted to Speed
1Cor 9:24
Posts: 79
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Post by JustaDad on Jan 14, 2009 12:05:27 GMT -6
Thanks Beakerboys, I have never run thin wheels and it sure looks bad with the wheels flopping back and forth. I like the bushing idea for the hub, but I'm concerned that I would be using a bushing which the rules say is not allowed.  I'll have to get creative! |
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Post by Lucky 13 on Jan 14, 2009 21:43:05 GMT -6
JustaDad, You may also want to try a bigger axle to remove some of the play. Hodges Hobby House aka www.winderby.com sells the old style BSA axles which are a bigger diameter. This may help your problem. The older BSA axles have a diameter of around .092 !! Lucky 13 |
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JustaDad
Addicted to Speed
1Cor 9:24
Posts: 79
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Post by JustaDad on Jan 15, 2009 11:34:51 GMT -6
JustaDad, You may also want to try a bigger axle to remove some of the play. Hodges Hobby House aka www.winderby.com sells the old style BSA axles which are a bigger diameter. This may help your problem. The older BSA axles have a diameter of around .092 !! Lucky 13Sometimes the answer is right in front of us but we cant see the forest through the trees. I have some of the old large axles and will check it out today! Thank you for the insight. |
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JustaDad
Addicted to Speed
1Cor 9:24
Posts: 79
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Post by JustaDad on Jan 27, 2009 8:36:11 GMT -6
Thought I should update this. I ended up going with the current axles as the old ones would have required me to bore out the hub and I don't have a tool for that.
All was good though, as I won the dads class for my final year and my son learned a lot as he took first in WEB II den and in the pack for the first time. He really built a fast car this year but dad still has him covered (for now) ;D
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I'll have to get creative! 