Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

 
Reply to this topicStart new topic
> 914-6 nrear conversion
mwizard1
post Sep 26 2024, 12:59 PM
Post #1


Newbie
*

Group: Members
Posts: 15
Joined: 25-May 24
From: N San Diego Co
Member No.: 28,148
Region Association: None



Can someone point me to info about converting to 914-6 5 bolt rear "hubs"?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
technicalninja
post Sep 26 2024, 01:54 PM
Post #2


Senior Member
***

Group: Members
Posts: 1,951
Joined: 31-January 23
From: Granbury Texas
Member No.: 27,135
Region Association: Southwest Region



http://www.914world.com/bbs2/index.php?showtopic=105728

PMB itself

https://pmbperformance.com/?srsltid=AfmBOoq...Rdc3JurVeSkHtHk

URO 5 bolt conversion hubs to allow studs and the 914 CV axle spline count.

https://www.autohausaz.com/pn/12632512-UR-9...BiABEgLMIvD_BwE

Lots of folks have them again, they were scarce for a while.

The URO rear hubs and 914-6 rotors are the way I went on the back.

PMB makes conversion front rotors with only the 5-lug pattern. This is how I went on front.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mwizard1
post Sep 29 2024, 08:33 AM
Post #3


Newbie
*

Group: Members
Posts: 15
Joined: 25-May 24
From: N San Diego Co
Member No.: 28,148
Region Association: None



QUOTE(technicalninja @ Sep 26 2024, 12:54 PM) *

http://www.914world.com/bbs2/index.php?showtopic=105728

PMB itself

https://pmbperformance.com/?srsltid=AfmBOoq...Rdc3JurVeSkHtHk

URO 5 bolt conversion hubs to allow studs and the 914 CV axle spline count.

https://www.autohausaz.com/pn/12632512-UR-9...BiABEgLMIvD_BwE

Lots of folks have them again, they were scarce for a while.

The URO rear hubs and 914-6 rotors are the way I went on the back.

PMB makes conversion front rotors with only the 5-lug pattern. This is how I went on front.
Great info. Where can I get 911 parts?

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
technicalninja
post Sep 29 2024, 08:44 AM
Post #4


Senior Member
***

Group: Members
Posts: 1,951
Joined: 31-January 23
From: Granbury Texas
Member No.: 27,135
Region Association: Southwest Region



@mepstein

And others...

Maybe Porsche themselves $$$$$$$$$$!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
technicalninja
post Sep 29 2024, 08:59 AM
Post #5


Senior Member
***

Group: Members
Posts: 1,951
Joined: 31-January 23
From: Granbury Texas
Member No.: 27,135
Region Association: Southwest Region



Heads up!

Real "Porsche" requires more conversion parts.

Front rotor/hubs require 911 struts cause the spindle diameter is different.

Rear flanges require different outer axle stubs, and this normally means 911 rear half shafts.

I prefer real Porsche, but the cost increase is NOT equal to the performance increase.

911 stuff is pricey, even used.

If you go "all the way" to a 3.5 caliper spacing on the front strut housings (later, more expensive housings) you can use Boxster (base) calipers.

In the rear if you want to use the corresponding Boxster rears you have to add early 911 emergency brake set up to the trailing arms if you want/need parking brake.

I see going real Porsche as increasing the cost by a factor of 3 maybe 4.

"Best" caliper for the 3" spaced struts is the Brembo Alfa caliper. The Porsche S caliper is another option but watch for corrosion with those. They are Aluminum and OLD!!!

Once again, PMB is a good source for info/parts regarding brakes on these puppies.

Edit:
Now, your post says 914-6...
If it's a real 914-6 it already has some of this crap anyway (like the rear 1/2 shafts, flanges).

If your car started life as a four and is not going to have more that 250 hp, the 4 set up can work FINE!

Lots of folks use 4 cylinder stuff with fairly powerful sixes...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mepstein
post Sep 29 2024, 10:49 AM
Post #6


914-6 GT in waiting
***************

Group: Members
Posts: 19,578
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region



QUOTE(technicalninja @ Sep 29 2024, 10:44 AM) *

@mepstein

And others...

Maybe Porsche themselves $$$$$$$$$$!

I should have 911 struts in either 3” or 3.5.
Just realize that switching to 911 struts means 911 hubs, bearings, rotors, calipers and hardware. Strut inserts are the same for 3” but differ for 3.5.
The rear is another matter and best to follow the suggestions on Eric’s/PMB brake thread.
Add in the cost of wheels.

The Alfa calipers are very nice. Same size mounting and piston as an M caliper but larger pads. Also need all the 911 conversion parts to make it work and a rebuilt Alfa calipers will be 2x the cost of a rebuilt M caliper.

I’m not saying you shouldn’t do the switch, just be prepared to lay out some cash.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cfletch
post Oct 31 2024, 05:44 PM
Post #7


Member
**

Group: Members
Posts: 107
Joined: 30-January 14
From: Santa Barbara
Member No.: 16,941
Region Association: Southern California



QUOTE(mwizard1 @ Sep 29 2024, 07:33 AM) *

QUOTE(technicalninja @ Sep 26 2024, 12:54 PM) *

http://www.914world.com/bbs2/index.php?showtopic=105728

PMB itself

https://pmbperformance.com/?srsltid=AfmBOoq...Rdc3JurVeSkHtHk

URO 5 bolt conversion hubs to allow studs and the 914 CV axle spline count.

https://www.autohausaz.com/pn/12632512-UR-9...BiABEgLMIvD_BwE

Lots of folks have them again, they were scarce for a while.

The URO rear hubs and 914-6 rotors are the way I went on the back.

PMB makes conversion front rotors with only the 5-lug pattern. This is how I went on front.
Great info. Where can I get 911 parts?


With the 911 rear hubs and stub axles, I am in need of correct Axles themselves, what companies are out there these days that sell a strong axle for the 911 rear set up that are correct length for the 914 and are plug n play?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 1st November 2024 - 12:23 AM