914 brake upgrade options |
|
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. |
|
914 brake upgrade options |
75porsche914 |
Jul 21 2014, 07:57 PM
Post
#1
|
Newbie Group: Members Posts: 40 Joined: 2-June 13 From: santa monica Member No.: 15,945 Region Association: None |
Hi, would love some recommendations regarding upgrading my brakes w/o braking the bank so to speak.
I recently upgraded to a 911 master brake pump or is it know as a cylinder and stainless steel brake lines. Changes my brake fluid reservoir to a new OEM Porsche one so the front trunks looks nice and new. So before I go rebuilding and making my current calipers all nice and shiny, what other options do I have to improve my braking performance? Can I go 911 brake calipers w/o having to change my whole front suspension to 911 suspension? I appreciate everyone's advice. I will post pictures soon, my car has been a two year journey and quite a story to get her where she is today. Many ups and downs, and almost 100% restored, bigger bored 2.0 now 2.4, new interior, paint, konis, springs, stereo, the works... Originally 52,000 now 55,000 mile original car. 75 2.0 now with back dated bumpers and many other items, so I call it Zambezi green , although a 75 was known as Forrest green. Finally proud to drive her around town. Been a hobby, passion, obsession and many reasons for past arguments regarding my income investments. Thanks for your recommendations. (IMG:style_emoticons/default/beerchug.gif) |
Dave_Darling |
Jul 23 2014, 07:51 AM
Post
#2
|
914 Idiot Group: Members Posts: 15,051 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
It's 25% more, BTW. also 20% less distance traveled by the pedal.
19^2 / 17^2 ~= 1.25 --DD |
race914 |
Jul 23 2014, 09:41 AM
Post
#3
|
73 914-4 Group: Members Posts: 1,006 Joined: 31-October 05 From: Nipomo, California (Central Coast) Member No.: 5,027 Region Association: Central California |
It's 25% more, BTW. also 20% less distance traveled by the pedal. 19^2 / 17^2 ~= 1.25 --DD Finally some actually facts!! Thanks Dave... The 19mm is not a downgrade, and certainly not "lesser performing part" I think the incorrectly perceived issue of "lesser performance" is due to the fact the 19mm requires more pedal pressure to achieve the same effective braking force (fluid displaced from the Master Cylinder to the Calipers) as compared to the 17mm. At the same time, the 19mm has shorter pedal travel than the 17mm. They can both apply the same pressure to the Calipers. A good layman's analogy is Harbor Freight Floor Jacks. The basic model takes many 'easy' pumps of the handle to raise a 914 off the ground, while the 'racing' version takes 6 'hard' pumps. Sure the racing version handle is harder to push down, but they both can raise the car up. The racing version is not a downgrade or "lesser performing part". It's Basic Fluid Mechanics. Same applies to Master Cylinders. That being said, I also agree 'feel', and the ability to control brake pressure modulation is very important. And with that in mind, I'm in agreement and would not put a 23mm Master cylinder in a 914 with stock brake calipers. I just don't agree that the 19mm is a downgrade or "lesser performing part" with stock 914 brake calipers, just because of the additional pedal pressure. Now after all of this, back to the original topic I agree with everyone else who states that the stock 914 brake system is very good, and performs very well. Also agree that if it is in good mechanical condition, and has fresh upgraded fluid such as ATE, Motul, etc, Good Pads such as Porterfields, and good tires, there might be no need to upgrade at all, especially if it is primarily a street car. The only reason I upgraded my fronts to 911 M Calipers is because 25 minute run sessions at Laguna can really be hard on your brakes and despite good fluid, good pads, and adding cooling scoops, removing the splash shields, etc I could still easily overheat the 914 brakes to the point they would fade horribly. If I wasn't doing regular track days I probably never would have upgraded the stock 914 brakes. |
Lo-Fi Version | Time is now: 31st October 2024 - 04:50 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 ... |