Oil filters

[Schralper]

ok so i'd seen the thing about the porsche? filter that fits.
why?

i've been running wix 51334, the EG33 filter.
the other one is wix 51287, which i recently put on.
it doesn't seem like there's much benefit, except like double the $.
in which case i'd rather change the filter twice.
i'm also running a flitermag, http://store.summitracing.com/egnsea...5&autoview=sku
on both engine and ext. trans (wix 51068) filters.

[surfer63]

If you're talking about the Porsche 944 filter, the benefits are:

larger surface area = 1. better cooling 2. more filtration 3. increases your oil capacity

it's not going to add 10HP or anything like that, but if u can make your motor work more efficiently why not do it? The OEM filter is clearly way too small for the 3.3L boxer engine on our cars.

BTW, I use STP brand oil filters and it's the same price for the Porsche 944 and the SVX OEM filter, like $6 from auto zone. I've cut one open and they're probably just as good as Wix, they're definitely better than Fram.

[Schralper]

Originally Posted by surfer63

If you're talking about the Porsche 944 filter, the benefits are:

larger surface area = 1. better cooling 2. more filtration 3. increases your oil capacity

it's not going to add 10HP or anything like that, but if u can make your motor work more efficiently why not do it? The OEM filter is clearly way too small for the 3.3L boxer engine on our cars.

Wix, they're definitely better than Fram.

i didn't expect any hp but as for the rest
You are kidding right?

better cooling?
no way. get an oil cooler
more filtration?
maybe a lil more surface area. change the filter more often.
increased oil capacity?
by 6 oz. for what?
i have a hard time believing the svx is so borderline oil sensitive
if i wanted more oil cap i'd get an oil accumulator as insurance.

I haven't measured the 2 side by side, but i'd bet the wix versions i've got here are about the same total area.
these aren't like my different sized chevy ones (wix 51794/51060) where you gain 1qt more capacity in the filter. they're literally twice as big.

[surfer63]

Schralper, sorry if my explanation wasn't good enough for you. Everything I said was true, and if you have a better reason for using a larger filter, I'd love to hear it. Or, if you don't see the need for using a larger filter, and would rather use the OEM size filter that's fine too. :-)

[Schralper]

no worries,
i understand the reasoning behind it.
i use the biggest filter i can on my built chebbies.
i just measured the 2
oe wix- 3"x3.25"dia
wix for 944- 5"x3"
my price wix for 944 is exactly twice versus wix#51344
$11.80 vs 5.90
i realize $6 diff ain't that much compared to gas.
i'm gonna compare and see if the oil stays any cleaner in the same mileage.
it's cleaner than before i started using the filtermag.
btw- i'm using 0w30 synth

[Marcus]

A bigger filter might be beneficial as it does not get clogged that fast. On the other hand: You might reduce the efficiency as it depends on the pressure applied.
As the line presure does not change but the effective surface of the filter is increased, a bigger filter might work less efficient than a small one.

[kwren]

Originally Posted by Marcus

A bigger filter might be beneficial as it does not get clogged that fast. On the other hand: You might reduce the efficiency as it depends on the pressure applied.
As the line pressure does not change but the effective surface of the filter is increased, a bigger filter might work less efficient than a small one.

Don't think the slower speed that the oil passes through the area of the filter is a negative condition. If it actually comes through the surface at a slower rate, if anything at all counts, it could be only positive. The pressure to all the engine components will be exactly the same.

My 2c worth.

Take care,
Keith

P.S. I went right out and checked out the taller filters and am going to give it a try. I am thinking that any difference may not be noticeable?

[Schralper]

the wix 51287 (944 style) has 22% more vol. than the wix 51334 oe style.
580cc vs 472cc
i'm having a hard time see any true benefit from an extra 3.4 oz/100cc of oil filtration. since there's 5 qts. and if i want more cooling i'll add a real oil cooler.
i guess i'll just be changing my 51334 filter more often, even if the belly pan is a hassle.
i'd rather change the filter 2x as often (based on my cost for filter), since it's the filter and not the oil that goes bad first.
especially if you're using a synth oil.

[kwren]

you are probably correct!
Keith

[processengr]

A visual aid...