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Post by F.A.S.T Racing on Jan 21, 2008 13:50:45 GMT -7
I'm trying to get 'Cuda [/i] ready for
Feb's race. What's everyone's thoughts
on balancing BSA wheels?
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Post by Carolina Gravity Sports on Jan 21, 2008 18:48:38 GMT -7
Well, I have had some wheels that would have a little vibration and I'm sure that was costing a little time. After balancing the wheels, the vibration was gone, the car ran smoother/quieter and I did see a slight improvement in time. I guess it's just like a tire on your car when they're balanced they ride a whole lot better. I will say the wheels I got from here were ready. I checked them but I didn't have to touch them. That's my 2 cents worth. What ever it's worth.
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Post by Barnyard on Jan 21, 2008 19:46:06 GMT -7
[/i] ready for Feb's race. What's everyone's thoughts on balancing BSA wheels? [/font][/size][/color] [/quote] It's worked well for us the past (2) years in Pack PWD's. Actually, simply lathe turning them gets them really close all by itself. We're probably going to be forced to run 'slow' wheels this month as well. Time and budget just haven't allowed for the true 'after-market' solutions for wheels and axles not to mention our pack rules greatly frown upon 'after-market parts'. I didn't think it would look good if a committee member and lead tech inspector showed up with Edge Pure Stockers on all his cars!!!!  |
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Post by F.A.S.T Racing on Jan 23, 2008 5:51:30 GMT -7
Well, while I've been waiting for some
advice about balancing BSA wheels I
built a "home-made" balancer. 
If I'm understanding the 08' Pure Stock
rules, you cant remove any material from
the inside of the wheel. So what should
I use to 'add' weight to the inside ??
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Post by Barnyard on Jan 23, 2008 7:37:53 GMT -7
If I'm understanding the 08' Pure Stock
rules, you cant remove any material from
the inside of the wheel. So what should
I use to 'add' weight to the inside ??
[/size][/color][/quote] How about a small drop of clear fingernail polish? |
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Post by 2FAST4U on Jan 23, 2008 16:38:57 GMT -7
VERY NICE THERE FAST...  I HAVE NOT YET DONE MUCH WITH BALANCING THE WHEELS MAYBE I WILL HAVE TO TRY IT... IT MIGHT SPEED ME UP...  |
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Post by Rail Hugger on Jan 23, 2008 21:11:21 GMT -7
With the quality of some of the machined BSA wheels available I guess I never worried much about it, Its probably more of an issue with the stock BSA wheels than the altered BSA wheels. I have noticed that some mold numbers produce wheels that the exterior of the wheel and the interior of the wheel are off just a tad in relation to one another, which certainly would almost have to have an oscillating effect when rotating due to the greater thickness of wheel on one side.
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Post by F.A.S.T Racing on Jan 24, 2008 10:24:40 GMT -7
Thanks 2fast
Making the wooden fixture was easy, finding
the right sized rod to mount the wheel on was a
challenge. Ended up using a dull 3/32 drill bit.
Cut down and chamfered the ends on the mini-lathe.
It fits snug, with very little play.
Maybe balancing will help, I'll know more after
Feb's race
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Post by Fat Boy on Jan 24, 2008 10:47:59 GMT -7
are those magnets ?
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Post by F.A.S.T Racing on Jan 24, 2008 11:06:43 GMT -7
Supermagnets..... 
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Post by Bubba on Jan 24, 2008 11:36:03 GMT -7
FAST:
Haven't tried it yet, but we did submit our vote anyway ;D
I've got a fever, and the only prescription is... well, you know the rest.
Bubba
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Post by Fat Boy on Jan 24, 2008 16:35:01 GMT -7
OK !
my issue with wheel balance theories.
) 1 - do you get a real read on balance if the axle isn't 100 % tight to the bore ?
) 2 - is there really enough weight in a wheel to turn it out of balance ?
) 3 - with only 3 wheels on the ground ( like we all do ) and 1 riding the rail ( like we all do ) DOES IT MATTER ??
just my 2 cents , spend it wisely !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sorry its just a little slow
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Post by F.A.S.T Racing on Jan 31, 2008 12:54:36 GMT -7
OK ! my issue with wheel balance theories. ) 1 - do you get a real read on balance if the axle isn't 100 % tight to the bore ? ) 2 - is there really enough weight in a wheel to turn it out of balance ? ) 3 - with only 3 wheels on the ground ( like we all do ) and 1 riding the rail ( like we all do ) DOES IT MATTER ?? just my 2 cents , spend it wisely !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! sorry its just a little slow
)1 - I would say yes,based on my observations. The
critical thing is getting the mounting rod/shaft balanced.
When the mounting rod is spun without a wheel it
should stop at a random place if it is 'balanced'.
When a wheel is mounted on the rod, just a slight
puff of air will make it spin. You have to blow much
harder on a wheel that is on a polished & lubed axle
held in your fingers to make it spin.
)2 - The wheels spin at 2200-2400 rpm. True,they are
light, 3.45 to 3.65 grams for unmodified BSA wheels.
But think about your passenger car, just 1 oz (28 gr) can
shake your whole car Those wheel & tire assembly
weigh 50 to 75 POUNDS each !!
)3 - Don't know. I'm not really fast enough to say. Can't
hurt to try. Maybe I should send 2fast one of my home
made balancers. He would be the best one to test it.
His cars are 'blazing fast, and very consistent.
Sometimes, thinking "outside the box" works, other
times it sends you on a wild goose chase
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Post by 2FAST4U on Jan 31, 2008 21:56:56 GMT -7
OK ! my issue with wheel balance theories. ) 1 - do you get a real read on balance if the axle isn't 100 % tight to the bore ? ) 2 - is there really enough weight in a wheel to turn it out of balance ? ) 3 - with only 3 wheels on the ground ( like we all do ) and 1 riding the rail ( like we all do ) DOES IT MATTER ?? just my 2 cents , spend it wisely !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! sorry its just a little slow
)1 - I would say yes,based on my observations. The
critical thing is getting the mounting rod/shaft balanced.
When the mounting rod is spun without a wheel it
should stop at a random place if it is 'balanced'.
When a wheel is mounted on the rod, just a slight
puff of air will make it spin. You have to blow much
harder on a wheel that is on a polished & lubed axle
held in your fingers to make it spin.
)2 - The wheels spin at 2200-2400 rpm. True,they are
light, 3.45 to 3.65 grams for unmodified BSA wheels.
But think about your passenger car, just 1 oz (28 gr) can
shake your whole car Those wheel & tire assembly
weigh 50 to 75 POUNDS each !!
)3 - Don't know. I'm not really fast enough to say. Can't
hurt to try. Maybe I should send 2fast one of my home
made balancers. He would be the best one to test it.
His cars are 'blazing fast, and very consistent.
Sometimes, thinking "outside the box" works, other
times it sends you on a wild goose chase
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Post by Cam-Car Racing on Feb 1, 2008 15:57:46 GMT -7
If you want a quick, easy, fairly accurate way to check a wheel for balance, do this:
Take a polished axle and slide the wheel onto it. Make a little mark on the outside of the wheel as a reference point. Hold the end of the axle between your thumb and finger and hold it in a horizontal position. Jiggle the axle for a few seconds and then see where the mark on the wheel is. Rotate the wheel to a different position and jiggle it again. The heavy part of the wheel will always settle to the bottom. If the wheel is in balance the reference mark should end up at different random places.
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