 Hub-centric 5 lug |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| gms |
 Apr 13 2014, 08:04 AM
Post
#1
|
|
Advanced Member  Group: Members Posts: 2,721 Joined: 12-March 04 From: Chicagoland Member No.: 1,785 Region Association: Upper MidWest 
 |
mount up on lathe
 Stock version on left Attached image(s) 
|
   |
 
|
  |
Replies
| CptTripps |
Apr 13 2014, 02:25 PM
Post
#2
|
|
:: Punch and Pie :: Group: Members Posts: 3,585 Joined: 26-December 04 From: Tuscaloosa, AL and Akron, OH Member No.: 3,342 Region Association: Upper MidWest |
This is timely. I think I'm fighting what this fixes...
I put my 5-lug rears on yesterday and they're just a LITTLE lose. I was thinking I needed a spacer, but taking 5mm off the back might be easier. I can have a machine shop take that off. https://www.youtube.com/watch?v=Lw9jVBF2lOQ |
|
|
|
| jaxdream |
Apr 13 2014, 05:38 PM
Post
#3
|
|
Senior Member Group: Members Posts: 974 Joined: 8-July 08 From: North Central Tennessee Member No.: 9,270 Region Association: South East States |
QUOTE(CptTripps @ Apr 13 2014, 12:25 PM)  This is timely. I think I'm fighting what this fixes... I put my 5-lug rears on yesterday and they're just a LITTLE lose. I was thinking I needed a spacer, but taking 5mm off the back might be easier. I can have a machine shop take that off. https://www.youtube.com/watch?v=Lw9jVBF2lOQ If you pull those hubs you might stand a chance of destroying the wheel bearings . to tighten up put a spacer ( possibly 4-5mm ) on the backside of the stub up against the inner bearing race between the flange of the stub where the cv mounts, other wise source another set of wheel bearings just in case . YMMV....... Jack |
|
|
|
| CptTripps |
Apr 14 2014, 09:25 AM
Post
#4
|
|
:: Punch and Pie :: Group: Members Posts: 3,585 Joined: 26-December 04 From: Tuscaloosa, AL and Akron, OH Member No.: 3,342 Region Association: Upper MidWest |
QUOTE(jaxdream @ Apr 13 2014, 07:38 PM) If you pull those hubs you might stand a chance of destroying the wheel bearings . to tighten up put a spacer ( possibly 4-5mm ) on the backside of the stub up against the inner bearing race between the flange of the stub where the cv mounts, other wise source another set of wheel bearings just in case . YMMV....... The hubs actually come out relatively easy. (Not just "pull out" but I can get them in/out without the press.) I've already called PMS about 2 spacers and will see if I can get them here quickly. |
|
|
|
| mskala |
Apr 14 2014, 09:47 AM
Post
#5
|
|
R Group: Members Posts: 1,935 Joined: 2-January 03 From: Massachusetts Member No.: 79 Region Association: None
|
Took me a while to realize this is about modifying a later-model part.
But what is the point of this? Trying to gain 5mm clearance at the expense of modifying brake mounting? |
|
|
|
| SirAndy |
Apr 14 2014, 11:40 AM
Post
#6
|
|
Resident German Group: Admin Posts: 42,254 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(mskala @ Apr 14 2014, 08:47 AM) But what is the point of this? The point is to have hub centric hubs so you don't have to rely on the wheel studs to center your wheel ... (IMG:style_emoticons/default/shades.gif) |
 |
|
| mskala |
Apr 14 2014, 12:58 PM
Post
#7
|
|
R Group: Members Posts: 1,935 Joined: 2-January 03 From: Massachusetts Member No.: 79 Region Association: None
|
QUOTE(SirAndy @ Apr 14 2014, 01:40 PM) QUOTE(mskala @ Apr 14 2014, 08:47 AM) But what is the point of this? The point is to have hub centric hubs so you don't have to rely on the wheel studs to center your wheel ... (IMG:style_emoticons/default/shades.gif) However, you already have the studs there, which will center the wheel. I don't see any mod to the part to make it threaded for using wheel bolts. (IMG:style_emoticons/default/confused24.gif) |
|
|
|
| SirAndy |
Apr 14 2014, 01:03 PM
Post
#8
|
|
Resident German Group: Admin Posts: 42,254 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(mskala @ Apr 14 2014, 11:58 AM) However, you already have the studs there, which will center the wheel. I don't see any mod to the part to make it threaded for using wheel bolts. (IMG:style_emoticons/default/confused24.gif) You lost me there ... Wheel bolts???? The point is that with even with 5 studs, you're relying on those to center your wheels when tightened and there is a chance that you'll torque down your wheels slightly off center and create a wheel imbalance. The inner 3 piece ring on the new hub shown in this thread makes sure that the wheel is completely centered. Hub centric they call them for that reason. That allows for proper wheel fitment every time with now chance of getting them off center. (IMG:style_emoticons/default/smile.gif) |
|
|
|
| mskala |
Apr 14 2014, 01:36 PM
Post
#9
|
|
R Group: Members Posts: 1,935 Joined: 2-January 03 From: Massachusetts Member No.: 79 Region Association: None
|
QUOTE(SirAndy @ Apr 14 2014, 03:03 PM) QUOTE(mskala @ Apr 14 2014, 11:58 AM) However, you already have the studs there, which will center the wheel. I don't see any mod to the part to make it threaded for using wheel bolts. (IMG:style_emoticons/default/confused24.gif) You lost me there ... Wheel bolts???? The point is that with even with 5 studs, you're relying on those to center your wheels when tightened and there is a chance that you'll torque down your wheels slightly off center and create a wheel imbalance. The inner 3 piece ring on the new hub shown in this thread makes sure that the wheel is completely centered. Hub centric they call them for that reason. That allows for proper wheel fitment every time with now chance of getting them off center. (IMG:style_emoticons/default/smile.gif) The lug nuts are spherical and will center to the studs. So what you're saying is that Porsche is incapable of producing a hub with properly aligned studs, but it is totally capable of producing a perfectly aligned ring for centering. |
|
|
|
Posts in this topic
gms Hub-centric 5 lug Apr 13 2014, 08:04 AM
gms Stock version on left
Mmmm hub-centric!
Apr 13 2014, 08:05 AM Eric_Shea Took me a while. I was looking for the lathe mark... Apr 13 2014, 10:47 AM
worn
Took me a while. I was looking for the lathe mar... Apr 14 2014, 11:45 AM Eric_Shea
Is the difference in shaft lengths the reason I h... Apr 14 2014, 09:47 PM SirAndy I like that!
I had a set of those 944s at som... Apr 13 2014, 10:58 AM Eric_Shea
Those are probably a different offset altogether... Apr 13 2014, 11:04 AM Travis Neff So 5mm off the backside of the wheel bearing side?... Apr 13 2014, 01:03 PM mskala lug nut
wheel bolt
Apr 14 2014, 01:42 PM r_towle
[quote name='SirAndy' post='2024616' date='Apr 14... Apr 14 2014, 02:30 PM SirAndy So what you're saying is ...
No, that's y... Apr 14 2014, 02:32 PM Luke M With the later 5 lug hubs you need to put a spacer... Apr 13 2014, 02:48 PM Travis Neff The worry I have with the spacer is that it pushes... Apr 13 2014, 03:04 PM Eric_Shea Doug, you need the hub shaft spacer that Luke sugg... Apr 13 2014, 05:06 PM Mike Bellis So what year 911 have these hubs that can be mille... Apr 14 2014, 04:14 PM bdstone914 911 started using the hub centric hubs in 74. Not ... Apr 14 2014, 05:57 PM jaxdream Maybe the OP will enlighten us as to the source of... Apr 14 2014, 05:47 PM Eric_Shea Remember, once you do this, the rotor offset will ... Apr 14 2014, 09:56 PM Travis Neff Bump.. Looking to hear what rotor and caliper you... Apr 18 2014, 11:30 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 8th July 2025 - 05:37 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.