Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rating: Thread Rating: 2 votes, 3.00 average.
Author
Thread Post New Thread    Reply
Registered
 
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
derkpitt.... what's your point ? ..... the comparison is totally absurd if you understand the design elements of an engine compared to a wheel...

Wil

__________________
Wil Ferch
85 Carrera ( gone, but not forgotten )
Old 06-21-2006, 06:59 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #21 (permalink)
Registered
 
Dan in Pasadena's Avatar
 
Join Date: May 2004
Location: Pasadena, CA
Posts: 5,209
Garage
Wil,
Not only is it absurd (plus he can't spell/doesn't know the difference between "brakes" and "breaks") I think derkpitt is trying to convey that our safety concerns over fake Fuchs is a "tempest in a teapot". Much ado about nothing. You know, the "Not to worry, everything is going to be just fine" sentiment. My opinion of that is he's right!....well, that is until the one or two occasions when he is NOT right, a wheel breaks under load and at speed and then tragic things can happen.

Funny as we all fine them, there is a reason the Darwin Award jokes exist. Some guys just gotta learn the hard way. My $.02 - Fire away!
__________________
Dan in Pasadena
'76 911S Sahara Beige/Cork
Old 06-21-2006, 07:28 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #22 (permalink)
Registered
 
Laneco's Avatar
 
Join Date: Jan 2005
Location: Usa
Posts: 5,573
We wound up with an odd collection of fuchs wheels and "fakes" wheels at one point. In the SAME size range (I think it was 16x6) the fakies were almost 5 pounds heavier!

Five pounds of extra wheel weight per corner.

Buy a sound set of used Fuchs. They look right, weigh less, have more value and in every way are a superior wheel.

angela
__________________
Hello

http://forums.pelicanparts.com/off-topic-discussions/1102514-we-lost-amazing-woman-yesterday.html
Old 06-21-2006, 07:34 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #23 (permalink)
Toxic
 
derkpitt's Avatar
 
Join Date: Jun 2001
Location: ATL, GA
Posts: 301
Garage
Well, I was just trying to stir the pot a little.
Stirred it real good.

And your right, I'm not a good speeeller, so kick me some more if that makes you happy.

I'm not trying to compare apples to oranges.
Just looking at some other places where casting is used.

I do have two old cranks at home for my cudas.
One is forged and one is cast, which one do you think I should use?
__________________
Bruce
88 Carrera Coupe, 12 Dodge Ram Hemi,
69 Barracuda Fastback, 68 Barracuda Convertible 5spd
The only substitute for cubic inches is cubic dollar$.
Old 06-21-2006, 08:09 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #24 (permalink)
Registered
 
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
Derk:
If you followed the thread...you'd see that casting...as a *method* of construction...wasn't being slammed.

BUT....copying a (thinner, stronger) forged piece and casting the clone without adding structural reinforcement.... borders on criminal.

A 911 engine case....with 8 main bearing supports for the long, counter-weighted crank.... is an entirely different situation, and can in no-way be compared to the issue at hand.

- Wil
__________________
Wil Ferch
85 Carrera ( gone, but not forgotten )
Old 06-21-2006, 08:35 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #25 (permalink)
Registered
 
khamul02's Avatar
 
Join Date: May 2005
Location: South of Heaven [MS]
Posts: 1,927
Garage
what about these?
http://www.***************/productpage.aspx?pid=110674&name=911%c2%ae+Alloy+Replica+5-Spoke

They are made in Italy. Do we assume that means quality?
__________________
Tom Hutchinson
80 Targa / 81 Coupe / 71 Targa (in Porsche heaven)
My Garage Build: https://youtu.be/H0n_NwEQVbs
"If one does not fail at times, then one has not challenged himself." Ferdinand Porsche
Old 06-21-2006, 07:29 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #26 (permalink)
 
Registered
 
randywebb's Avatar
 
Join Date: Nov 2004
Location: Greater Metropolitan Nimrod, Oregun
Posts: 10,040
only for food or wine
__________________
"A man with his priorities so far out of whack doesn't deserve such a fine automobile."

- Ferris Bueller's Day Off
Old 06-21-2006, 09:10 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #27 (permalink)
Registered
 
ianc's Avatar
 
Join Date: Dec 2004
Location: Novato, CA
Posts: 3,064
Quote:
If you followed the thread...you'd see that casting...as a *method* of construction...wasn't being slammed.
Although it should have been. Pound for pound, a forging will always be WAY stronger than a casting. Picture a bag of boiled spaghetti. Now bend it the way you like. Now freeze it, then try to bend it. That is the way the metallic grain structure is formed with a forging, but with heat and pressure rather than freezing. The superior grain structure of the material after it has been hot-worked ensures much greater strength and fatigue resistance.

Not to say that cast wheels can't be fine, but they will always be heavier than a forged wheel and this must be accounted for in their design. Forging is more expensive, but produces a better part.

ianc
__________________
BMW 135i. Nice. Fast. But no 911...

"I will tell you there is a big difference between driving money and driving blood, sweat and tears." - PorscheGuy79
Old 06-21-2006, 09:44 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #28 (permalink)
Registered
 
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
Ian:
You're simply expanding upon what I had said...I don't think we're in sustantive disagreement.
Casting....as a "method"...is OK but you'll need larger cross sections to regain strength...hence more weight. It's a "system" answer ( as it so often is)...

The Italian Fuchs copy makes for interesting side-bar. On the one hand...it is cast ( but Pressure cast....a bit better than gravity casting...) and if made in Italy....probably has TUV certification. I would consider this OK...pending further investigation. Maybe it was made thicker where required to get it certified.

- Wil

(EDITED )
__________________
Wil Ferch
85 Carrera ( gone, but not forgotten )

Last edited by Wil Ferch; 06-22-2006 at 04:54 AM..
Old 06-22-2006, 04:50 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #29 (permalink)
Registered
 
ianc's Avatar
 
Join Date: Dec 2004
Location: Novato, CA
Posts: 3,064
Quote:
You're simply expanding upon what I had said...I don't think we're in sustantive disagreement.
No, we're in perfect agreement. I was just saying that forging will produce a superior wheel to casting, and is preferred.

I too would advise the original poster to look for used Fuchs rather than go for replicas. Those Italian wheels aren't cheap...

ianc
__________________
BMW 135i. Nice. Fast. But no 911...

"I will tell you there is a big difference between driving money and driving blood, sweat and tears." - PorscheGuy79
Old 06-22-2006, 08:15 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #30 (permalink)
Senior Member
 
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,943
Quote:
Originally posted by dvkk
Last year at our local vintage races I saw an early 911 with 15x7 fake Fuchs on the rear. The multiple large cracks were clearly visible from 6' away. I informed the owner's wife (owner not around). Later when he was out, I cringed at every lap. Nobody died that day, but I'm sure the guy will continue vying for the Darwin award.
I wouldn't use fake Fuchs on my VW.
Why didnt you tell the safety people at the track? Sure that they would have black flagged the car immediately.
__________________
2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB
Old 06-22-2006, 08:24 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #31 (permalink)
Registered
 
khamul02's Avatar
 
Join Date: May 2005
Location: South of Heaven [MS]
Posts: 1,927
Garage
Quote:
Originally posted by ianc
I too would advise the original poster to look for used Fuchs rather than go for replicas. Those Italian wheels aren't cheap...

ianc
But can you pick up a decent pair of 8 X 16's for $500 ($250 each)? I guess my question, seeing how I'm looking at the italian option for 8's, is am I better off picking a new pair of what looks like a high quatily cast 8's or an old pair of forged.
What kind of price difference are we talking about?

For street only application.
__________________
Tom Hutchinson
80 Targa / 81 Coupe / 71 Targa (in Porsche heaven)
My Garage Build: https://youtu.be/H0n_NwEQVbs
"If one does not fail at times, then one has not challenged himself." Ferdinand Porsche
Old 06-22-2006, 08:52 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #32 (permalink)
 
Registered
Quote:
Originally posted by khamul02
what about these?
http://www.***************/productpage.aspx?pid=110674&name=911%c2%ae+Alloy+Replica+5-Spoke

They are made in Italy. Do we assume that means quality?
From the ad:
"This replica of the standard factory wheel is manufactured using the superior low pressure casting method for a superb finish."


Superior? To what, the original?

If it were TUV approved I'm sure they'd be touting the fact.
__________________
Warren & Ron, may you rest in Peace.
Old 06-22-2006, 09:23 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #33 (permalink)
Registered
 
randywebb's Avatar
 
Join Date: Nov 2004
Location: Greater Metropolitan Nimrod, Oregun
Posts: 10,040
Superior to Ooog pouring lead he smelted over the fire in his cave into a depression in the sandy beach next to his buddy's cave. (Then they celebrate with roast mastodon and some mead.)
__________________
"A man with his priorities so far out of whack doesn't deserve such a fine automobile."

- Ferris Bueller's Day Off
Old 06-22-2006, 10:34 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #34 (permalink)
Registered Usurper
 
DARISC's Avatar
 
Join Date: Sep 2005
Posts: 13,824
Apparently "Low Pressure" casting is the latest stage of development of this bronze age old craft - Hey, would polished bronze look cool or what?

Heavy, dude !
__________________
'82 SC RoW coupe
Old 06-22-2006, 12:33 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #35 (permalink)
Fuchs w h o r e
 
Join Date: May 2003
Location: Vancouver, Canada
Posts: 644
Quote:
Originally posted by Joeaksa
Why didnt you tell the safety people at the track? Sure that they would have black flagged the car immediately.
Foolishly, I assumed once the owner/driver was informed he would not go out. It certainly frightened me. Apparantly his pair are bigger than mine.

After he did go out, I notified the tech inspector. I didn't stick around to see what actions they took. The guy's wife could probably figure out it was me that ratted on him.
Old 06-22-2006, 11:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #36 (permalink)
Registered
 
Jeff Alton's Avatar
 
Join Date: Jan 2003
Location: Langley,B.C.
Posts: 12,002
Wil, are you positive the "spokes" on the replicas are as "thin" as the ones on real Fuchs?? Would seem strange that they would copy that detail accurately but still have a wheel you can just look at quickly and tell it is not an original.....

I am not a fan of the replica wheels. A search should yeild some threads of cracked "real fuchs" too. I remember one a while back where Rdane had a few of them in his possesion.

I would think, but could be wrong, that a wheel that is 20-30 years old and has countless miles on it may start to fatigue at some point?

Cheers
__________________
Turn3 Autosport- Full Service and Race Prep
www.turn3autosport.com
997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3
Old 06-23-2006, 05:22 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #37 (permalink)
Registered
 
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
catca:

I think we're re-treading some old stuff already mentioned here....

I'm not certain about all the fake Fuchs being as thin as the original, but that is the clear implication when photos like the failed one here cropped up soon after they were made available. They do look a "bit" different from the front, I agree, so some design change may have been made. I also think that a pressure cast Fuchs replca WITH TUV certification ( if such a combo exists)..may merit a second look. Lastly, we mentioned that even forged wheels have a fatigue life and some original Fuchs, some 30-40 years old... are starting to fail.

This all requires careful scrutiny by the buyer in all cases....

Wil
__________________
Wil Ferch
85 Carrera ( gone, but not forgotten )
Old 06-23-2006, 01:44 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #38 (permalink)
Registered
 
Join Date: Mar 2005
Location: portland, or.
Posts: 39
Garage
Picture a bag of boiled spaghetti. Now bend it the way you like. Now freeze it
__________________
1985 Carrera Pastel Beige
Old 06-23-2006, 02:57 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #39 (permalink)
Registered
 
Join Date: Mar 2005
Location: portland, or.
Posts: 39
Garage
So are these Italians wheels made of frozen spaghetti?

__________________
1985 Carrera Pastel Beige
Old 06-23-2006, 02:58 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #40 (permalink)
Reply


 


All times are GMT -8. The time now is 09:22 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.