Engine cooling...Heads vrs Cylinders, what item is more of an impact ? |
|
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. |
|
Engine cooling...Heads vrs Cylinders, what item is more of an impact ? |
Mueller |
Aug 30 2003, 10:21 AM
Post
#1
|
914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
So what item?, the heads or the cylinders have more of an impact on engine performance and longevity when properly cooled?
If someone had a bolt-on kit for watercooling, would you rather have watercooled heads or watercooled cylinders? What temperature do the cylinders get to while the engine is working? |
ChrisFoley |
Aug 30 2003, 01:21 PM
Post
#2
|
I am Tangerine Racing Group: Members Posts: 7,958 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
The heads are already oil cooled to a greater extent than the cylinders.
The cylinders are under more stress than the heads and if they overheat the rings won't work anymore. Also since cast iron doesn't conduct heat well the cylinders will heat up more than the heads with a temperature differential (inside-outside) of over 1200F. It is well documented that switching to aluminum cylinders (Nickies) will lower the head temps as well as having other benefits. I can't see any point in going to all the trouble of watercooling unless you want to achieve power outputs of close to 100hp per cylinder. LN Engineering claims that engine lifespan is greatly increased by switching to aluminum/Nikasil cylinders. |
Lo-Fi Version | Time is now: 26th September 2024 - 05:18 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 ... |