Front Oil Cooler for Racing 2.8 Liter Six, How Big Do I Need to Go? |
|
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. |
|
Front Oil Cooler for Racing 2.8 Liter Six, How Big Do I Need to Go? |
motorvated |
May 19 2024, 01:04 PM
Post
#1
|
Member Group: Members Posts: 282 Joined: 13-February 13 From: Colorado Member No.: 15,519 Region Association: Rocky Mountains |
Working on my Vintage racer to upgrade to a 2.8 liter six race engine and was looking for recommendations for sizing my front oil cooler. This race motor has an oil filter installed in place of the stock oil cooler on the engine, so my front oil cooler has to do the full job of cooling the oil up front. I have been looking at the Setrab coolers and specifically their model number 50-150-7612, which is 16" X 8.25" with 50 rows. Smaller option is their Series 9, 20 row model number 920F22 which is 16" X 6", which might be undersized. I'm curious to learn what you racers out there have found to work best.
Also I'm trying to size a differential cooler for the Wevo 915 transaxle. It had a Tilton pump and cooler on it when it ran in the prior race car, but unfortunately they stayed with that car. So any recommendations for sizing that, with or without fan also would be helpful. Thanks Mike S. |
technicalninja |
Jun 7 2024, 09:26 PM
Post
#2
|
Advanced Member Group: Members Posts: 2,000 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region |
No-one has mentioned it...
There is ABSOLUTELY no good reason to intentionally run the oil over the boiling point of water on a track car in my book. It's HUGELY important on a street-based vehicle but you should be changing your race oil far before moisture contamination is a concern. Now if it does run over 212 during a session it's a plus... I'd shoot for a minimum temp over 170 but I'd try hard to build a system that did not require a thermostat. "Fewer parts" is more dependable, lighter, and less expensive... |
stownsen914 |
Jun 8 2024, 06:26 AM
Post
#3
|
Senior Member Group: Members Posts: 930 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
I agree with the above. A few thoughts below.
Water evaporates increasingly as the temp goes up. There's lots of evaporation happening by the time it gets to 200 degrees. There isn't anything magic about hitting 212 degrees to get good evaporation. If your oil temp gauge says 200 degrees, remember that's post-cooler. In the bottom of your engine, post bearings and exposed to all the heat the oil is probably 25-50 degrees hotter, so condensation has a chance to evaporate off more aggressively. |
Lo-Fi Version | Time is now: 22nd November 2024 - 07:41 AM |
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 ... |