BSA Wheel Differences

[Guest]

Ive been Machining wheels since last July. I'll admit it wasn't easy at first. I would get pretty frustrated. You think everything is going good and then the hub falls off. I cleaned out the BSA store a few times in the neighboring town. I suppose to the tune of right now 600 wheels +/-. So when I would get these wheels I would first sort them by mold numbers. Now after sorting 600 +/- I have noticed something. There are 3 distinctively different wheels

1 A flat black wheel. It has a dull appearance and it makes a grayish white shaving.

2 A satin black wheel. Its sorta shiny with slightly darker shaving.

3 A full on shiny black wheel. This wheel reminds me of the revell wheels. It has a black shaving. The wheel tread gets a nice sheen with a magic eraser unlike the flat black wheel.

So I would toss the shiny wheels into my @%$k it bucket and go with the 1 and 2 wheels that I described here. Before my kids race I thought i would make a set out of those shiny ones. To my surprise they were the fastest wheels that "I" have ever made those wheels are what turned a 2.926 on my 42 foot best track the night before the race.

It seems to me that the shinier wheels shine up better. I like a real shiny wheel bore when Im done treating mine vs a dull wiped out bore.

I'm wondering has any body else noticed this? I'm going to be watching closer now.

 

[GravityX]

Besides mold numbers, I would assume you are categorizing by a visual appearance. I guess I could make an assumption to say the "full-on shiny" wheel is of a harder material, thus allowing the better shine. Again, just an assumption.

 

[BulldogRacing]

why is mold matching necessary if every wheel is machined?

 

[ngyoung]

wheel bore sizes vary between different molds. At least with your rear wheels you want them as identical as possible.

 

[Quicktimederby]

I think with the BSA wheels at different times you find huge differences in the wheels even in the same mold #. I thought that the darker wheels, the ones that shine real well would be faster but they are not. I have a set very dull looking bores in one of my cars and that car is running better than others. Just figure out a prep process that works well for you and shinny, dull, dips, no dips, wont matter as long as the wheels are turned correctly.