Guys a friend of mine is building an Ultima GTR and he wants to get even lighter rims for it. So we need (2) 18"x10" and (2) 18"x13". I have been scavenging thru the internet for them and so far have not found some Magnesium Rims in those sizes.

I don't know the weight specifically of the Ultima aluminum rims, that is why I'm looking for Mags. I'm in the process of finding that out.
Thanks you any help you can give us would be much appreciated.

I guess i retract my statement

yeaaaaa mag wheels are baad.... thats why they dont make them anymore. They were popular in the 1960s with race teams.. but they burned when they got too hot.. thats why we have aluminum wheels now. If you really wanted something lighter than forged Aluminum, try to find someone to make you a titanium alloy one ... good luck with that..

Dammit, I was starting to think that.

Not true. I just bought a set of Volk magnesium TE37's. 18"x8.5" and only 12.9 LBS.

They don't burn and you can't find lighter wheels. Many manufacturers still make them and many race cars still run them. They're awesome wheels.

under racing conditions those have a high chance of catching fire and burning up. They might be mag alloy. And they do burn, watch some old racing videos, indy cars and what not, when Mag wheels were very popular. When the car hit the wall the wheel would ignite from the impact. Have you seen magnisium burn.. that stuff if HOT and BRIGHT plus the fires are hard to extinguish, most of the time they burned out

the titanium wheels was a joke... thats why i said good luck with that afterwards.

Wheels are only Magnesium alloy....meaning magnesium combined with some other metal......like Aluminum, copper, silicon. etc....

Be prepared to drop big $. I would expect to pay over $1,000 per.

our evo's have magnesium valve covers, doubt that it helps tho

haha. yea mag wheels are EXPENSIVE

I'm not going to get into a debate about this but magnesium alloy wheels don't just explode or ignite when they get hot. They are still widely used today for a reason, light weight and strength. Have you ever seen rubber burn? It's pretty nasty, should we not use rubber tires?

Magnesium burns, but usually only when it's a small strip, a shaving or dust. What it will do, when it heats up and there is a decent amount of material, is it will melt. Then there's a good chance the puddles of magnesium will explode (given a good heat source). Do a Google search on metal fires, that will give you the information you need.

Magnesium can burn but the risk is minimal. Think of all the parts of a car that are a hazard if exposed to the high heat of fire. Magnesium is used in engines, steering wheels, etc. Aluminum, plastic, gas, cloth seats, etc are all potential fire hazards. It is inaccurate, in my opinion, to refer to a magnesium wheel as a safety hazard.

Magnesium is a commercially important metal with many uses. It is only two thirds as dense as aluminum. It is easily machined, cast, forged, and welded. It is used extensively in alloys, chiefly with aluminum and zinc, and with manganese. Magnesium alloys were used as early as 1910 in Germany. Early structural uses of magnesium alloys were in aircraft fuselages, engine parts, and wheels. They are now also used in jet-engine parts, rockets and missiles, luggage frames, portable power tools, and cameras and optical instruments. Duralumin and magnalium are alloys of magnesium. The metal is also used in pyrotechnics, especially in incendiary bombs, signals, and flares, and as a fuse for thermite. It is used in photographic flashbulbs and is added to some rocket and missile fuels. It is used in the preparation of malleable cast iron. An important use is in preventing the corrosion of iron and steel, as in pipelines and ship bottoms. For this purpose a magnesium plate is connected electrically to the iron. The rapid oxidation of the magnesium prevents the slower oxidation and corrosion of the iron.