myorks

Just put in the tiny hamp synergy oil filter today and my car seems to run a bit better with the claimed 5psi oil pressure increase..gonna use these from now on!! try them out...

bouckarooo

so, if it increases the oil pressur eby 5 psi then i am curios as to that the filtration rating of the filter is. oil filters work like this, the lower the filtration rating the higher the oil pressure; the higher the filtration rating the lower the oil pressure. You cannot have the best of both worlds, mobile1 makes the highest filtration rated filter for the h22 but it also decreases oil pressure substantially; K&N has the best filtration rating while not decreasin oil pressure, although its rating is quite a bit less than the mobile1's. Fram is garbage and has a lower rating than both of them. i wish eneos would make filters, or even royal purple, i bet thiers would be great....lol

dontbuyprelude

ha my friends were telling me about some "special" oil filter that increased oil pressure and as a result my engine would operate more smoothly. i thought that was neat until i realized the exact same thing bouck said

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David
01 SSM SH

93 d15 auto del slo gone and FORGOTTENexcept for a few memories....

prepreludesh

usually when you increase the "flow" on something, you're decreasing the pressure. Put a straw with a 1" inside diameter in your mouth and blow. Doesn't feel like you're barely moving any air, right?

Now put a 1/8" inside diameter straw and your mouth and blow. You feel like there's alot of air moving at a fast rate at the end, but it's not flowing well becuase it has all of that pressure.

Well the only thing I can think of that would increase pressure on an oil filter is if the filter element was more dense (better filtration) because imagine in example #1 if you had put your hand over the front of that straw while blowing. You'd feel the resistance right?

Higher filtering oil filter = more pressure because it's taking an increase in pressure to force the oil thru it.

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dontbuyprelude

^^didnt consider that before hmmmm

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David
01 SSM SH

93 d15 auto del slo gone and FORGOTTENexcept for a few memories....

leftbrain99

I disagree with your reasoning. I think you are mistakingly using the term "pressure" but then you are describing "resistance". A smaller tube would create higher resistance and decrease flow. A tighter filter would improve filtration but, again, decrease flow. But increasing the pressure will increase flow, all other things remaining constant. It's as simple as this: Turn the spigot on the water faucet to open the valve and you will lower the resistance in the valve, increasing water pressure in the hose, and thereby increasing the flow.

Pressure is a force. An oil filter does not induce a force. Now the term "back pressure" is sometimes used in fluid dynamics to describe a resistance against flow and pressure, but back pressure is essentially the same thing as resistance.

bouckarooo

great example but sorry man you are mistaken; the higher the filtration rating the more resistance(force holding oil back), therefore the less pressure. The lower the filtration rating, the lower the resistance therefore the higher the pressure.

For those out there who do not believe what i say then do this to realise what i say to be true.

take a peice of hose about 2 feet long(open ended), place a coffee filter on the bottom then fill the hose through the top with water, measure the amount of time it takes for gravity to drain out the hose through the filter. Add another filter(2 intotal) and do it again; add a bout 5 more filters and do it and measure the time. The times will be drastically different....why? because there is more material for the water to pass through; think of it like this: the more material the oil(or water in this case) has to travel through the more energy is absorbed by that material; a loss of energy equals a decrease in pressure.

I am sure if you would like to know more then just search it for better scientific results and explanations.