Brake upgrades, retain 4 bolt wheels? |
|
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. |
|
Brake upgrades, retain 4 bolt wheels? |
jpnovak |
Nov 2 2012, 03:13 PM
Post
#1
|
They call me "Nanoman" Group: Members Posts: 231 Joined: 26-August 09 From: Austin TX Member No.: 10,736 Region Association: Southwest Region |
So the Subaru conversion is up and running and I am planning for next season's track events. A concern of mine is the stock solid rotors ability to dissipate heat. I went digging in the archives but the information is scattered to say the least. Most was why Boxster calipers are not an upgrade. No kidding.
Now I am very familiar with the "upgrades" and real upgrades related to early 911s. I only want more heat capacity over a run session. I tracked my warmed over early 911 for years with stock M front calipers and had no issues. Proper brake technique, cooling ducts and decent pads can really provide excellent braking. I am not as familiar with the 914 system upgrades. The system has been brought up to stock quality with rebuilt calipers and for the street functions just fine. I have no issues with the braking force just the ability to stay cool. What are the options? Will cooling ducts (AJ or other) work on these cars in the same way they do on a vented 911 rotor? What pads work well? Can I stay with 4 bolt wheels? I do not really want the added expense of a 5 bolt conversion right now. Are there any "hats" that will fit over a stock 914 brake "hub"? |
Eric_Shea |
Nov 2 2012, 04:16 PM
Post
#2
|
PMB Performance Group: Admin Posts: 19,279 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
If you want to retain solid rotors, the only upgrade I can think of would be great pads and a cooling system. The AJR system incorporates a backing plate that would probably put the cooling air into the hub section of the integrated 914 hub/rotor. With a solid rotor, it would probably be best to have that directed to the rotor itself.
There was a hub manufactured a while back and sold through the now defunct BRAG. It allowed a 911 vented rotor to work on a 914 spindle. You would then use a 911 M-Caliper or a Brembo caliper made for the 3" spacing. That hub retained the 4-lug setup. You might be able to haunt the classifieds for that. This is about the only option if you want to retain the 4-lugs. I really don't think there are any other caliper options for solid rotors (BMW etc.) because a ) it sounds like you know how to drive and b ) those simply add more heat to a rotor that can't dissipate it all that fast. That's why I mentioned cooling up front. |
Lo-Fi Version | Time is now: 15th June 2024 - 06:21 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |