tires and wheels Early steelies and E21 big drum upgrade =no workie !!

[PatAllen]

I wonder who else stupid enough to do that other than me...buying all the stuff and not checking if it fits...lol...

I will make it fit but i will need to grind some boses into the wheels

AAARHGGG !!!

[eastsidebimmer]

No worries...I did it too. At the time, I asked that the FAQ be updated to reflect that the E21 upgrade REQUIRED at least 13" x 5" -- but I don't think this ever happened. Unfortunately, I completed the upgrade then test fitted the 4.5" wheels. I'm running a 5 Mil spacer and the drums just barely clear the wheels. Put em on without spacers and the wheels come off with the drums still attached. Highly recommend longer studs, as the nuts just clear the last thread with the 5 mil. spacer.

I had over 500 dollars wrapped up in blasting 5 steelies and having them painted Polaris by a body shop. Oh, and then I got rear ended. Oh well.

[ahlem]

Doesn't work on e30 cars either.

[PatAllen]

There is a lot of meat on theses drum, i wonder how much shaving is needed to make them fit.

I will take some measurements and will run them on a lathe to see.

ARRGH X2

[pkbinplano]

I've got two 320i steelies if interested, or just use wheel spacers

[PatAllen]

I've got two 320i steelies if interested, or just use wheel spacers

i got a shit pile load of 320 steelies, thank you.

I realy want to run early steelies, no spacers. Ill find a way.

I will let you all know.

[PatAllen]

Ok so here is what i did.

I got them on a lathe and realised that the casting is very not round.

They only machine the interior and mating surfaces.

Once i made them "round", it fitted the wheel.

I didnt removed much, i didnt even touched all the circumference of the drum to make it "even" round.

There is about 0,040" of clearance. I also removed some material on the exterior rib so air can passes there.

So, it was not that bad. That will make them also more balanced, i remember that i put one of them on my tire balancing machine and it was recording like 1.5 out of balance...

Once the paint will get dry i will get them on the dynamic balance to see...