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canna change law physics
 
red-beard's Avatar
 
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Question Oil Bath vs Paper

I hope I'm not starting a holy war....

My 914/6 came with the oil bath type filters. I was considering switching to paper.

Advantages of each?

James

Old 04-03-2002, 01:56 PM
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I would stick with oil bath if you have that option.

Superior filtering ability of particles.

Not sure about air flow ratings though. I would imagine Porsche would not put on a system that drastically restricted air flow though.
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Old 04-04-2002, 01:07 PM
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Oil baths don't burn either....
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Old 04-04-2002, 01:30 PM
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"Oil baths don't burn either...."

....yeah, but only if you use that "non-flamable" oil...

just kdding...
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Old 04-04-2002, 08:12 PM
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As long as you use a decent quality paper filter (like FRAM) I don't any practical advantage to an oil bath aside from it's being re-useable. Still, you can buy re-useable elements for "paper" filters too. Personally, I think that unless you are going for 100% originality a good quality paper filter is probably going to be a lot easier in the long run. And with a car that's 30+ years old, it never hurts to try to make all the little things easier since the big things tend to not be so easy.

Aaron
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Old 04-05-2002, 10:09 AM
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I am not intimately familiar with the 914/6 oil bath system, but the VW oil bath system is cake even compared to paper filters.

Granted this is a subjective thing, but for me it is easier on a VW. YMMV
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Old 04-05-2002, 10:20 AM
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Just trying to get an idea if there is any significant advantage of one over the other. I'm hoping to reduce the intake noise a little with the paper filter.

My 914/6 has aftermarket oil bath type filters with very little in the way of noise attenuation from the intakes.

Also, thinking of noise attenuation, anyone know a good source od dynamat or the equiv? I need something that will not hold water, since the 914/6 does not have a rain tray.

James
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Old 04-05-2002, 10:23 AM
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I don't know that particular oil bath system either, but the ones I have messed with have been more trouble than they were worth IMO. Oil bath is just one more thing to have to clean out all the time, you're right that it's not that complicated, just a little more time-consuming in what experience I have.

Aaron
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Shifting is an art. Learn it, love it, live it.
---------
Silver 1998 Volvo S70 T5 <- Daily (Anja)
Guards Red 1986 951 <- Seattle car (Gretchen)
White 1976 914 2.0 F.I. <- Prodigal car, traded away then brought back again (Lorelei)
Old 04-05-2002, 10:26 AM
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Red,

Dynamat and similar materials were discussed about a year ago here. Try a search for Dynamat.

Several people posted that there was an equivalent material, but less expensive, available from McMasterCarr: Look for Sound Absorbers, Adhesive Back Damping Sheet, Mastic.

I haven't used it myself, but it was stated in other posts that it is the same as the the thin Dynamat.

Mike
Old 04-05-2002, 12:00 PM
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