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Post by derbymom on Aug 4, 2011 13:21:46 GMT -7
Questions: I have noticed that the BSA wheels are all over the place. Because I can’t run larger axles, I can’t center the boars, to the outside surface and maintain the tread all the way around making a light wheel without machining the inside of the wheel.. It also takes a lot more work to balance the wheel. All of the sellers hype the idea of mold matched wheels; does that make sense to you guys? What for, I have tons of #5 s that are like the wheels of a clown car. What wheel mold is the best? I have more than one #14 that you could drive a truck through. Again, what mold does the best job? That would be consistently the roundest most centered and lightest wheel. Hand picking the roundest and lightest wheels does not seam to be stuck to any given mold. What can you do to the wheels to get them to hold a tolerance? I have noticed that after they sit for a time, they change there shape. Can I chemically harden them, or do I just need to let them sit for a year or two for them to get to there natural shape? After making my own mandrel, I can get the wheels to about ½ thousandth of an inch. But let them sit for a week or two and they go caddy wompus. I have tried baking the wheels at different temperatures and that does nothing, or makes a pretzel. Why on earth is the BSA and Pine pro mandrels so loose? Is there a reason for that? What is the deal with people polishing the bores with graphite? Why not just make a few runs adding graphite each time. What is the deal with sellers working all 4 wheels on the inside hub. That sounds like a waste of time effort and money on the back wheels. They don’t even touch the car. Do any of you guys machine the wheels after alignment to get the weight balance the same on the back wheels? It seams to make the car more consistent. Am I nuts? And lastly I have a 35 foot Best track that is setup dead level. I have set the track to PDDR slope. It was a pain to get the transition to line up at that angle. I think the best track should be 30deg. The track is 30.75 feet pin to eye. I have a car that I made plywood from BSA blocks it is a fendered wing design. The car is only ¼ inch at its thickest point with a smooth taper top and bottom. The car is running a 10 run average of 2.401, is that considered fast for lightly worked BSA axles and wheels? There is no external weight on the car as it is all in the fenders with a COM of 5/8. Do you think that the weight out on the edges of the car slow it down, because every bump needs to lift the mass without a torque advantage? Is it my imagination, or are the wheels shot after about 1000 feet at speed. Last but not least, axle groves don’t seam to help with speed one bit, but they do maintain the speed longer over 10 runs. With groves the speed holds, without it starts dropping off after 4-6. Am I nuts? I am calling this observational physics, but are my beer goggles to thick?
Does any one know of a vender that could give me a good discount for worked BSA axles in quantity? Cutting them things round is tedious because you can’t hog the the axle without bugering it up. Polishing is fine and does not take that long. And by the way, has anyone ever heard of a tear down after winning a BSA race? Because if they don’t, the person that thunk up the rule “no speed groves” is an idiot. With proper head spacing, there is no F in way you can see the grove.
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Post by txchemist on Aug 4, 2011 16:32:08 GMT -7
Dear Derbymom. I hope no one gives you a bad time and skips all those interesting questions, it's just that if you read enough of this board to know what the supposed PDDR slope is, you would also get lots of tips on most of your questions. I will try and estimate the speed question. I would like at least a confirming measurement on how high the nose of the car is above the bottom track level, ( I'm looking for about 48") and when you say the best track should be 30 degrees, I assume you set your track up to 30 degrees, is that correct? If so, running a 2.401 is very good for graphite., I don't want to sound suspicious, but no way you would be that fast without really good wheels and axles. Send that car in- it would run a 3.015 which is really fast for graphite. Of course- without getting both your car distance above ground level and if you have the new chip in a micro wizard timer, this is just a guess.
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Post by scubersteve on Aug 5, 2011 7:54:21 GMT -7
I thought we might be past the foolish behavior of he who must not be named or his band of death eaters. could someone send me a pm and tell me what we are talking about? I figure no one wants to air this for all to see, but I am apparently waaayy outside this loop. |
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Post by scubersteve on Aug 5, 2011 10:55:03 GMT -7
ok, will do
;D
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Post by resophonic1 on Aug 5, 2011 11:23:49 GMT -7
could someone send me a pm and tell me what we are talking about? I figure no one wants to air this for all to see, but I am apparently waaayy outside this loop. Steve, trust me it is not even worth your time. Enjoy the racing and steer clear of the drama. +1 The forum and league are better than ever! |
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Post by derbymom on Aug 8, 2011 15:36:54 GMT -7
Proxy server? What is a proxy server? When I was in collage I took a class on the internet. If I remember correctly, a proxy server is what gets you to the backbone of the internet. I use a Hughes Net sattelite ISP run through a Hughes 9000 modem and a Belkin wireless router to a Compaq laptop. When the kids are using the laptop to watch a movie, I use a HP desktop, or this monster that my husband made years ago. It sits inside a freezer. It only runs at 900 Megahertz. He refuses to get rid of it because it is darn near 20 years old and it is only suppose to run at 100 megahertz. I forget what it is, but I know it is pre Pentium. If some one thinks that makes me a fake, I guess everyone on this site is a fake too. Some times I use a server in a hot spot, so that should make my numbers change too. I know that my husband was on this site for a little bit, he said that there was 4 people had a clue. They included DDH4, derby dude and one other. I called John at work. He is cutting down a tree that is ready to fall on his slum lord empire. He said that we do not have a static ISP and the ISP # is all over the place. He also said that it is rare if some one would have a clue about the ISP numbers. He said there is no information to be gained from pinging a member of any group. It is only done to find a criminal. That information is also no good because you can hack into a wireless router to some ones home like staring a car with the key.
Hubby use to do the pine wood derby thing with the boys. Now he is taking the oldest to go cart races. You should see the thing, it looks like it was built by NASA My hubby weighs about 160lbs and I fallowed him in the car at 70mph. I said…. “You are going to put my son in that thing“? He said “Funny how you mention “my Kids” when they are not doing anything wrong.
I just hit the old Unenjoyment pool. That means that I am board, and don’t see a new job coming along any time soon,. That’s all. I voted for Obama, and he purchased the social service association a new truck and laid off ½ of the staff. I saw how easy it was to build a derby car that is fast. John would take a few months for the BSA race with the boys, and do all of the fast work the day before the race. The Boys don’t have a clue about making things good looking. You derby guys remind me of a 25 year old guy with a wallet and a 14 second rust bucket. You tell every one that it is 10 seconds; you spend enough money to make it run 4 seconds, but it looks and smells like stuff. Don’t get me started about the Harley riders and all the tacky chrome, or the 4wd boys and the tires that weigh as mush as there girlfriend. I was also thinking about selling these things as a Flea bay Seller. Go look at Flea bay, I just opened a store that is the pinewood derby mom. My ID is Sheryle0 I have had that ID for years and years and years
So let’s get back to my questions that no one knows about.
1 How do you get a wheel to hold its shape for weeks, months or years?
2 do axle groves just make a car fast longer, or faster, or faster longer.
3. How do I get a photo as an avitar? I see Jpegs of people, all kinds of stuff, But Like I said, I dont have a static address, How do you do that?
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Post by derbymom on Aug 8, 2011 18:48:22 GMT -7
OK DDH4
I called you at about 9:20 pm. You are in Utah, that is what 7:20 your time? Would you tell these guys that a woman left a message on your machine asking about axle/nails .
We are done with the nonsense right?
I am a derby mom.
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Post by DNA RACING on Aug 8, 2011 22:16:09 GMT -7
OMG!!!!!!!! ;D
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Post by 2FAST4U on Aug 9, 2011 10:14:35 GMT -7
Questions: I have noticed that the BSA wheels are all over the place. Because I can’t run larger axles, I can’t center the boars, to the outside surface and maintain the tread all the way around making a light wheel without machining the inside of the wheel.. It also takes a lot more work to balance the wheel. All of the sellers hype the idea of mold matched wheels; does that make sense to you guys? What for, I have tons of #5 s that are like the wheels of a clown car. What wheel mold is the best? I have more than one #14 that you could drive a truck through. Again, what mold does the best job? That would be consistently the roundest most centered and lightest wheel. Hand picking the roundest and lightest wheels does not seam to be stuck to any given mold. What can you do to the wheels to get them to hold a tolerance? I have noticed that after they sit for a time, they change there shape. Can I chemically harden them, or do I just need to let them sit for a year or two for them to get to there natural shape? After making my own mandrel, I can get the wheels to about ½ thousandth of an inch. But let them sit for a week or two and they go caddy wompus. I have tried baking the wheels at different temperatures and that does nothing, or makes a pretzel. Why on earth is the BSA and Pine pro mandrels so loose? Is there a reason for that? What is the deal with people polishing the bores with graphite? Why not just make a few runs adding graphite each time. What is the deal with sellers working all 4 wheels on the inside hub. That sounds like a waste of time effort and money on the back wheels. They don’t even touch the car. Do any of you guys machine the wheels after alignment to get the weight balance the same on the back wheels? It seams to make the car more consistent. Am I nuts? And lastly I have a 35 foot Best track that is setup dead level. I have set the track to PDDR slope. It was a pain to get the transition to line up at that angle. I think the best track should be 30deg. The track is 30.75 feet pin to eye. I have a car that I made plywood from BSA blocks it is a fendered wing design. The car is only ¼ inch at its thickest point with a smooth taper top and bottom. The car is running a 10 run average of 2.401, is that considered fast for lightly worked BSA axles and wheels? There is no external weight on the car as it is all in the fenders with a COM of 5/8. Do you think that the weight out on the edges of the car slow it down, because every bump needs to lift the mass without a torque advantage? Is it my imagination, or are the wheels shot after about 1000 feet at speed. Last but not least, axle groves don’t seam to help with speed one bit, but they do maintain the speed longer over 10 runs. With groves the speed holds, without it starts dropping off after 4-6. Am I nuts? I am calling this observational physics, but are my beer goggles to thick? Does any one know of a vender that could give me a good discount for worked BSA axles in quantity? Cutting them things round is tedious because you can’t hog the the axle without bugering it up. Polishing is fine and does not take that long. And by the way, has anyone ever heard of a tear down after winning a BSA race? Because if they don’t, the person that thunk up the rule “no speed groves” is an idiot. With proper head spacing, there is no F in way you can see the grove. 2 me, it sounds like you have it all figured out... you say you have a car that runs 2.401's send it in and shows us what pinewood derby is all about... all your ?'s are awnsered in the ask the pro's so go read and learn if you need to, but i think you already know the awnsers... if you really need help call me i would loive to help.... Glenn oh, fivekids, I dont know what we have done to you or MB has done to you, but you need to relax or move on... if you do not like it here then go away. it is ok. you wont hurt my feelings... all i know is i have done nothing or said nothing to you but help fix your cars when they came broken, so you could have a great race... but thoughs days have been forgoten... so what ever crap that has been told to you you need to get both sides... now i have said somthing... that may or may not up set you... have a great day... |
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Post by 2FAST4U on Aug 9, 2011 10:44:39 GMT -7
2 me, it sounds like you have it all figured out... you say you have a car that runs 2.401's send it in and shows us what pinewood derby is all about... all your ?'s are awnsered in the ask the pro's so go read and learn if you need to, but i think you already know the awnsers... if you really need help call me i would loive to help.... Glenn oh, fivekids, I dont know what we have done to you or MB has done to you, but you need to relax or move on... if you do not like it here then go away. it is ok. you wont hurt my feelings... all i know is i have done nothing or said nothing to you but help fix your cars when they came broken, so you could have a great race... but thoughs days have been forgoten... so what ever crap that has been told to you you need to get both sides... now i have said somthing... that may or may not up set you... have a great day... Darn! it's like a tag team match! I write one somewhat negative post in 2 years and you are telling me to move on! hey cup cake. i know all about the behind the sences... dont go play inicent... i did not tell you to move on only, i said relax or move on... that would be your choice... you will be ok... |
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Post by DNA RACING on Aug 9, 2011 13:20:25 GMT -7
it might be un PC to say this, but i do have a Fastest Woman in racing trophy at the Scouter Nationals....
it is actually one of the biggest ones, a nice dual column in hot pink.
i ordered it for 7DB but i think you can take him ;D
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Post by DNA RACING on Aug 9, 2011 17:26:45 GMT -7
i refuse to even think about the Cabinfever Classic until the SN is over.
good try though ;D
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Post by derbymom on Aug 10, 2011 16:28:45 GMT -7
Should I interupt the sword fight? Why not, I started the thread?
Yesterday after I came home from taking my son to the doctors office, my Husband said, “Wusey, U gots um splainen to do“. DDH4 called when I was out. . I spoke to him on the phone about buying axles instead of working with nails. I love that guy. I am going to order a few axels from him to see what I get. The best part is when my husband came home later that day, he brought me a double acting air brush. That is huge, when he left the house, I thought he was upset. When he came home, he handed me the air brush. I asked him if he sired the fetus of the cute little collage girl at the local Mom and Pop convenient store. He does not have Pro-basketball money, that means an F or better 2 karat ring is out of the question. I know he thinks my derby thing is silly, I think I will keep an eye on him for a few weeks.
Like I said in the beginning, My track is set up to 27.1 degrees. When it came out of the box it was 30 degrees. It is suppose to be 27 degrees. don’t believe me, call best track and ask. The design is 27 even, but there is production tolerance. That 3 degrees makes a difference of about .1 seconds in time. That also makes me wonder about some Fleabay sellers that say how fast the car is.. By the way, I don’t think I mentioned this before. In the car I made out of DIY plywood, I placed led sheets in the back of the car before I cut it to length. That is why I used JB Weld to glue the sheets together. The top of the wing body in the back is lead. I cast the fenders from lead in the back only. The front fenders are balsa wood. I think that was actually a negative weight transfer to the front of the car. Balsa soaks up paint like a sponge. How about another stupid question? I am thinking an abstract paint job on a car using three colors of pink, and at least two colors of purple. Maybe a little white in the mix. I would like to make it so that if you squint, you can see a woman. But I need better stock to make axels for the pure stock race. What do you guys start with.
If it isn’t fast chrome it. If it is fast…… you have to make it pretty. That is why Harleys are chromed and Yamahas are sexy. That is why they put chrome on a truck, and curves on a muscle car.
My husband said that if I am going to build a pretty car, it better run like a call girl to fleet week in New York City. What do you think? I have the wheels down, should I by some nails?
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Post by DNA RACING on Aug 10, 2011 17:12:11 GMT -7
i am all for the do it your selfer, but when it all comes down to it, the 91SGA's are simply the best axles that can be had! i tried others and even making my own. it is frustrating and the results are hit and miss.
now i dont even think of it i just get more 91's.
bri
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