re-built aluminum drums ?

[CPLUCKER]

I don't know about you guys, but I use these things up like beer at a superbowl party ( at least1-2 drums a year ) because the keep cracking in the middle. so I think the volume is definately there to do the tooling required to do this. the problem I am having is finding the ring shaped cast iron or steel material. do you guys know if they are iron or steel ? I am getting one checked with a mass spectrometer tommorow to see what the originals were. I will have a price quote in a week or so, but it is going to be hard to get them down to $150.

but even at $200 to $225 the cost is not really prohibitive, heck some guys have front rotrs that cost that much !

Thanks
Chris Plucker

[MIKEL]

As I posted in the other thread also look at diff type steels may be a lot better about cracking and therefore lasting longer? In additiond there may be better thermal propties to some other types of steels. The OEMs were built to be cheap not for max performance. There may some solid benifits to the relpacing the stock liners. Then there is the weight situation if a stronger material is thinner or lighter (some of the high nodulars steels/stainless?)agan more weight loss would be a better thing yes?? So if they cost 250ea but were say 1-2lbs lighter lasted twice as long and cooled better the cost does not look so bad. Seem to me somone has access to some engineers/brake spicalists who might have some ideas about types of materials to look into. Like Paul said if there is enought intrest the tooling cost would come down and if you happen to come up with a "hot" part I bet there will be a market for it. That all being said you better make sure the powers that be are ok with "refurbished" drums at all. no point in doing all this if they say no go.

[CPLUCKER]

I have no interest in what " powers that be" say .. I am re-building a part just like a brake caliper from autozone. it is the same fit or function. If we get to the point that some rulemakes have a problem with something like this, I am ging to pack up and go home !

Chris Plucker

[CPLUCKER]

Just had a mass spectrometer alloy analizer check the material on the OEM Nissan drums, it says they are SA-105 1018 carbon steel, this is good news because we can use steel pipe to make the friction surface rings !

[tim240z]

Just had a mass spectrometer alloy analizer check the material on the OEM Nissan drums, it says they are SA-105 1018 carbon steel, this is good news because we can use steel pipe to make the friction surface rings !

Thats a win right there! Unless we could ummm... improve the design

[CPLUCKER]

What would be an improvement ? I am making sure I don't use welded seam pipe I am unable to use Iron ( most rotors are actually Iron not steel) but what would be a good stable high temperature material that would outperform carbon steel?

Thanks Guys
Chris Plucker

[tim240z]

What would be an improvement ? I am making sure I don't use welded seam pipe I am unable to use Iron ( most rotors are actually Iron not steel) but what would be a good stable high temperature material that would outperform carbon steel?

Thanks Guys
Chris Plucker

Oh I have no idea... It was said as a joke as Im sure it wouldnt be legal...