Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
Oil filter idea/question
Posted 06 November 2004 - 11:02 PM
With either of these systems in place, especially in conjunction with an oil cooler, I think it would be entirely reasonable that engine life could be increased, and drain intervals could safely be extended (something that I'm still nervous about but would be willing to try with improved filtration).
Your thoughts please.
Posted 07 November 2004 - 01:07 AM
Engine oil's biggest enemy in SI engines is heat. It breaks down the long chain molecules into shorter molecules that have less lubricity.
I think the bigger bang for the buck would be for an oil cooler and some pre-lube (and after-lube if turboed) system.
I am NOT saying that your ideas do not have merit. The centrifugal filter might use the oil from the pressure bypass circuit. You could also go with a total oil system redesign and go dry sump... cooler oil, more options for filtration, bigger pain to design.
BTW, my Honda 350 had centrifugal oil filtration, as did, IIRC, the Fiat 850. They depended TOTALLY on the centrifigual filtration.
Posted 07 November 2004 - 07:45 PM
Posted 08 November 2004 - 08:48 PM
Sorry, same person.
Hmmm.... good points there NorthWet. The main issue that I had thought might come up with the centrifugal filter is that is might take longer to get oil to the engine at startup. Maybe adding an oil cooler and a small bypass setup would be the best option.
One thing with the centrifugal filters that I have dealt with is that they were a minor pain to clean, as they just flung the oil the side of the case. You had to take the case off and scrape/wipe the gunk out.
With a dry-sump, you could do both the super-fine filter (do you know if one is available?) and the centrifugal using the pressure from the scavenge pump. Maybe also use a "sacrificial anode" to deal with acid build-up.
Even if my ideas are useless or a pipe-dream, it serves as a bump for you.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users