Notices
964 Forum 1989-1994
Sponsored by:
Sponsored by:

Wheel Offset Question

Thread Tools
 
Search this Thread
 
Old Feb 22, 2013 | 09:42 AM
  #1  
TheSilverFox's Avatar
TheSilverFox
Thread Starter
Racer
10 Year Member
 
Joined: Jan 2012
Posts: 486
Likes: 20
From: Chicago
Default Wheel Offset Question

Hoping someone can help me with a offset for C2 964. I understand what offset is, don't know what works on a 964. Looking at possible set of wheels, 54MM front offsets and 42MM rear offsets. Was told these were on a NB 964 but wanted to check.

Last edited by TheSilverFox; Feb 22, 2013 at 09:42 AM. Reason: spelling
Reply
Old Feb 22, 2013 | 11:00 AM
  #2  
crg53's Avatar
crg53
Rennlist Member
15 Year Member
 
Joined: Jan 2007
Posts: 2,388
Likes: 17
From: Vancouver Island, BC , Canada
Default

Sounds like they will fit, but to be 100% sure, need to know size of wheel and tires as well.

Reply
Old Feb 22, 2013 | 11:37 AM
  #3  
TheSilverFox's Avatar
TheSilverFox
Thread Starter
Racer
10 Year Member
 
Joined: Jan 2012
Posts: 486
Likes: 20
From: Chicago
Default

Originally Posted by crg53
Sounds like they will fit, but to be 100% sure, need to know size of wheel and tires as well.

Thanks for getting back, tire size are 205/50/17 and 255/45/17
Reply
Old Feb 22, 2013 | 12:59 PM
  #4  
creaturecat's Avatar
creaturecat
Burning Brakes
 
Joined: Dec 2002
Posts: 1,057
Likes: 11
From: Vancouver B C
Default

the rear offset is incorrect.
Reply
Old Feb 22, 2013 | 02:01 PM
  #5  
KaiB's Avatar
KaiB
Nordschleife Master
 
Joined: Feb 2011
Posts: 5,297
Likes: 6
From: Deep Downtown Carrier, OK
Default

Originally Posted by creaturecat
the rear offset is incorrect.
Why would you say that?
Reply
Old Feb 22, 2013 | 02:48 PM
  #6  
crg53's Avatar
crg53
Rennlist Member
15 Year Member
 
Joined: Jan 2007
Posts: 2,388
Likes: 17
From: Vancouver Island, BC , Canada
Default

The wheels on my car are 7.5" x 17" ET 52 and 9" x 17" ET 47, with tire size 225 x 45 x 17 and 255 x 40 x 17 which is a perfect fit IMHO.
You will still have to know the width of your wheels before you buy, or you may run into fitment problems.

Reply
Old Feb 22, 2013 | 04:11 PM
  #7  
sml's Avatar
sml
Three Wheelin'
 
Joined: May 2010
Posts: 1,564
Likes: 1
Default

offsets are completely irrelevant with the wheel width.

post wheel widths.

no need to tell us the diameter.

you should really tell us your ride heights also and spring rates .. if you want to go quite aggressive with a low ride height.
Reply
Old Feb 22, 2013 | 04:12 PM
  #8  
sml's Avatar
sml
Three Wheelin'
 
Joined: May 2010
Posts: 1,564
Likes: 1
Default

Originally Posted by creaturecat
the rear offset is incorrect.
it would be perfect if the wheel width is 10"

10ET42 is pretty close to perfect with full negative camber & stiff springs.
Reply
Rennlist Stories

The Best Porsche Posts for Porsche Enthusiasts

story-0

This Builder Is Turning Heads With Its Slantnose 911 Creation

 Verdad Gallardo
story-1

Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

 Verdad Gallardo
story-2

Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

 Verdad Gallardo
story-3

10 Porsche Colors That Have More Personality Than Most People

 Verdad Gallardo
story-4

Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod

 Verdad Gallardo
story-5

10 Reasons I Hate Going to the Porsche Dealership (& the 1 Reason I Stay)

 Joe Kucinski
story-6

Porsche Shakes Up The Nürburgring Lap Record Table Once Again

 Verdad Gallardo
story-7

6 Ways the Porsche 911 GT3 S/C Redefines Performance

 Joe Kucinski
story-8

10 Wildest Homologation Specials Porsche Ever Sold

 Verdad Gallardo
story-9

Super Rare RUF BTR III Comes Out of Hibernation, Looking For a New Home

 Verdad Gallardo
Old Feb 22, 2013 | 04:17 PM
  #9  
KaiB's Avatar
KaiB
Nordschleife Master
 
Joined: Feb 2011
Posts: 5,297
Likes: 6
From: Deep Downtown Carrier, OK
Default

Originally Posted by sml
it would be perfect if the wheel width is 10"

10ET42 is pretty close to perfect with full negative camber & stiff springs.
Peek to the left here...proof on a (very) low car.
Reply
Old Feb 22, 2013 | 04:52 PM
  #10  
crg53's Avatar
crg53
Rennlist Member
15 Year Member
 
Joined: Jan 2007
Posts: 2,388
Likes: 17
From: Vancouver Island, BC , Canada
Default

Originally Posted by sml
offsets are completely irrelevant with the wheel width.
You are joking, right.
Reply
Old Feb 22, 2013 | 04:53 PM
  #11  
sml's Avatar
sml
Three Wheelin'
 
Joined: May 2010
Posts: 1,564
Likes: 1
Default

if the rear wheel width was 8" ... then 8ET42 is not so good for the rear
Reply
Old Feb 22, 2013 | 04:54 PM
  #12  
sml's Avatar
sml
Three Wheelin'
 
Joined: May 2010
Posts: 1,564
Likes: 1
Default

Originally Posted by crg53
You are joking, right.
that comment is sarcastic, right?

ETXX means nothing without wheel width.
Reply
Old Feb 22, 2013 | 04:59 PM
  #13  
crg53's Avatar
crg53
Rennlist Member
15 Year Member
 
Joined: Jan 2007
Posts: 2,388
Likes: 17
From: Vancouver Island, BC , Canada
Default

Originally Posted by sml
if the rear wheel width was 8" ... then 8ET42 is not so good for the rear
So now you are saying that width and ET are relevant? I am confused.
Reply
Old Feb 22, 2013 | 05:05 PM
  #14  
sml's Avatar
sml
Three Wheelin'
 
Joined: May 2010
Posts: 1,564
Likes: 1
Default

Originally Posted by crg53
So now you are saying that width and ET are relevant? I am confused.
you need to find the link to that wheel offset calculator .. it has been posted many times in the forums here.

how did you guess that ET42 would be ok for the rear?

did you assume it was, for example, 8ET42 or maybe 10ET42 or even 12ET42?

they will all be quite different.
Reply
Old Feb 22, 2013 | 05:31 PM
  #15  
crg53's Avatar
crg53
Rennlist Member
15 Year Member
 
Joined: Jan 2007
Posts: 2,388
Likes: 17
From: Vancouver Island, BC , Canada
Default

Originally Posted by sml
you need to find the link to that wheel offset calculator .. it has been posted many times in the forums here.

how did you guess that ET42 would be ok for the rear?

did you assume it was, for example, 8ET42 or maybe 10ET42 or even 12ET42?

they will all be quite different.
I am just pulling your chain, settle down take a deep breath and clear your head, then reread my posts.
Reply



All times are GMT -3. The time now is 03:30 PM.

story-0
This Builder Is Turning Heads With Its Slantnose 911 Creation

Slideshow: A small Polish tuner has reimagined the Porsche 911 Slantnose for the modern era, blending 1980s nostalgia with widebody tuning culture and serious performance upgrades.

By Verdad Gallardo | 2026-05-01 10:49:43


VIEW MORE
story-1
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

Slideshow: Porsche has created a Japan-only 911 GT3 Artisan Edition that blends track-ready hardware with design cues inspired by traditional Japanese craftsmanship.

By Verdad Gallardo | 2026-04-28 19:37:40


VIEW MORE
story-2
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

Slideshow: Porsche's latest electric Cayenne Coupe blends dramatic styling with supercar acceleration, turning the brand's midsize SUV into a 1,139-horsepower flagship.

By Verdad Gallardo | 2026-04-27 19:39:30


VIEW MORE
story-3
10 Porsche Colors That Have More Personality Than Most People

Slideshow: Porsche's wildest paint colors aren't just shades-they're full-blown personalities on four wheels.

By Verdad Gallardo | 2026-04-27 19:38:13


VIEW MORE
story-4
Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod

Slideshow: The last of the Speedsters doesn't just close a chapter, it makes quite the bold, air-cooled statement.

By Verdad Gallardo | 2026-04-22 17:55:04


VIEW MORE
story-5
10 Reasons I Hate Going to the Porsche Dealership (& the 1 Reason I Stay)

Slideshow: Going to a Porsche dealership may not be the dream experience you expect it to be and these are the reasons why.

By Joe Kucinski | 2026-04-21 13:54:19


VIEW MORE
story-6
Porsche Shakes Up The Nürburgring Lap Record Table Once Again

Slideshow: Porsche just proved-again-that precision engineering can outrun brute force at the Nürburgring.

By Verdad Gallardo | 2026-04-18 20:27:02


VIEW MORE
story-7
6 Ways the Porsche 911 GT3 S/C Redefines Performance

Slideshow: Six reasons why you will love the Porsche 911 GT3 S/C and 1 reason you will hate it.

By Joe Kucinski | 2026-04-14 10:21:39


VIEW MORE
story-8
10 Wildest Homologation Specials Porsche Ever Sold

Slideshow: Some of the most desirable Porsche models are those that were sold to the public solely for homologation purposes.

By Verdad Gallardo | 2026-04-08 09:54:26


VIEW MORE
story-9
Super Rare RUF BTR III Comes Out of Hibernation, Looking For a New Home

Slideshow: The lone BTR III-spec Targa features rare RUF engineering with a 430-hp turbo flat-six and fewer than 30 miles since its rebuild.

By Verdad Gallardo | 2026-04-06 20:03:25


VIEW MORE