machine weight off wheels??

[afterburn 549]

Well I just got my set of Etoile Wheels they look terific,but they are built to semi truck specs!! HVY !!!! anyone know of who can carve 5 to 10 lbs out of these beast?? my car is little- weight wise I do not need all this.So anyone who has experiance on the yes side let me know.
I went from a 34 lb wheel to 45 lb wheel.......wrong direction here.
(tire and wheel togather)HELP!!!!!!!!!!!!!!!!!!!!!!!!!!

[donstevens]

I wouldn't do it. You compromise the structural integity of the wheel. It was designed with that much metal for a reason.

Forged wheels are much lighter becuause a forging is much stronger than a casting. Thus a forged wheel can have much less metal and be just as strong as a heavier cast wheel.

Don

[afterburn 549]

Now we got over that, anyone have any experiance except for the above?? Logic dictates if a 13 lb wheel will support a P. car then 22lbs is over kill. So thanks for the bump but need serious help,and not a doctor yet..............

[widebody911]

13lbs of cash aluminum does not have the same strengh as 13lbs of forged aluminum.

[randywebb]

Use Fuchs - there is nothing lighter or stronger for an early 911.

Cutting material off a cast wheel is a very BAD idea - the folks above are giving xlnt advice, not just bumps...

[cowtown]

Originally posted by afterburn 549
Now we got over that, anyone have any experiance except for the above?? Logic dictates if a 13 lb wheel will support a P. car then 22lbs is over kill. So thanks for the bump but need serious help,and not a doctor yet..............

Don gave the right answer, not just a bump....

If your wheels are cast, they will be heavier than forged Fuchs.

[JeremyD]

Originally posted by randywebb
Use Fuchs - there is nothing lighter or stronger for an early 911.

Cutting material off a cast wheel is a very BAD idea - the folks above are giving xlnt advice, not just bumps...

Actually the BBS wheels I bought - same sizes - were a few lbs lighter per wheel than the fuchs

[Bill Verburg]

Don gave the right answer, not just a bump....

agreed, and Thom gave the reason, more cast material needs to be used for equal strength to forged, the cast wheeels are generally weaker anyway, and have been known to fail catastrophically on track.

[afterburn 549]

I know there are a lot of wheels lighter then the Fuchs.....just under logic dictates...a =amount of weight will=carry x amount weight-so w.o. getting into an emotional argument -whats right and wrong ,,I was thinkin I am not the only one with this problem .I guess the real problem is not able to afford a set of 4 to 8000.00 dollar set of wheels.
I tell ya there is so much material in these they could be on my semi...well almost

[Bill Verburg]

This will be your fate then

[JeremyD]

I think the phone dials are much cheaper than similiar fuchs - and you can usually pick those up for much less. My BBS wheels - 8x16 and 9x16 I picked up for $700...

[afterburn 549]

I think there is more to that story then your telling us,- Bill?????

[MotoSook]

Don't do it!

Listen to these guys, they have nothing to gain with their posts. Ask yourself if a clay wheel weighing the same as your wheels will be up to the task of supporting your car under dynamic loading. The answer should be no! Material and construction determine the strength of the end product. You can't use basic mathematics or simple logic in place of engineering...esp. when your safety at risk.

[CarreraS2]

What weighs more, a 13 lb cast wheel or a 13 lb forged wheel?

[MysticAlpaca]

I think your logic is flawed...possibly fatally so. They have to be heavier because they are cast and cast mettle is not as structurally sound as mettle that is forged.

"Casting has the advantage of allowing the designer more styling freedom because the process is a more flexible method. Until recently, most wheels have been gravity cast (heavier and thicker). Today, low pressure die casting techniques are used to substantially reduce porosity. Indeed, castings tend to contain porosity which strongly influences the mechanical integrity of the component. Thus, cast wheels are generally designed larger and heavier in order to achieve an acceptable structural strength for a given application."

"The forged wheel, because of the enormous pressures involved, compacts the metal, eliminating porosity and the voids that can be a source for cracks or corrosion. The result is that less metal is required to achieve a given strength, meaning lighter wheels can be made. Furthermore, due to the density of the grain structure, the polished forged wheel will maintain its luster for much longer than a polished cast wheel which is very porous."

PDF Doc of Forged vs. Casted wheels: http://www.calcom.ch/HomeWebCalcom/News&Events/actives/eTip16.pdf
Article on forged vs. cast pistons: http://www.lcengineering.com/TechNotes/TechNote41.htm
From Tire Rack: http://www.tirerack.com/wheels/tech/construc.jsp

[MysticAlpaca]

Originally posted by SoCal911SC
What weighs more, a 13 lb cast wheel or a 13 lb forged wheel?

LOL I just read that... [game show contestant voice]"hmmm Alex, I think the 13 lb wheel weighs more..."[/game show contestant voice] funny stuff...

[afterburn 549]

ok allready

[widebody911]

Originally posted by SoCal911SC
What weighs more, a 13 lb cast wheel or a 13 lb forged wheel?

African or European?

[jtcmuga]

I DON'T KNOW THAT! .... AHHHHHH!!!!!!

...a total classic, Thom...



Jojo

[randywebb]

"a =amount of weight will=carry x amount weight"

- sounds like confusing wt. with the strength of the material - the strengths differ.

I'd be interested to hear more about BBS wheels of the same size & strength as Fuchs but lighter. I've only been able to find one wheel lighter than the Fuchs (in that size) a custom Joenbloed of forged Mg - saves 1-2 lbs. and costs thousands...