Motorcraft oil filters

does200Member

While in the process of changing out my dipstick and maybe doing teflon coat on it on my black hall 5S, I figured what the hey, go and change the filters on all 3 cars & oil change. Was thinking of the Motorcraft FL-1HP, then I saw discussions about the FL-1HP vs FL-1A on the web, talking about micron levels, etc. Saw this 10 page post below on the clubcobra website. When I changed my filter last time on my red car (Fontana FE 417 engine) and my black car (Fontana FE 427 engine) I went with the FL-1HP. But maybe that is less filtration and really for true racing applications since it would allow oil to pass faster? Damn, just getting an oil filter can get confusing

http://www.clubcobra.com/forum...p-pressure-drop.html

2/1/1310:10 AM

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George PAdmin.

I didn't read the thread. But I'll offer this info ...

If its the low pressure drop you are concerned about, the filter elements inside racing oil filters usually have more pleats per inch, and therefore they have a much greater surface area of filter media, this results in a lower pressure drop.

Don't be confused, if you spend the extra bucks for a racing oil filter ... you're buying a much better filter. Otherwise the racing teams wouldn't use them on their very expensive racing motors.

-G

2/1/134:39 PM

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does200Member

quote:
Originally posted by Cowboy from Hell:
I didn't read the thread. But I'll offer this info ...

If its the low pressure drop you are concerned about, the filter elements inside racing oil filters usually have more pleats per inch, and therefore they have a much greater surface area of filter media, this results in a lower pressure drop.

Don't be confused, if you spend the extra bucks for a racing oil filter ... you're buying a much better filter. Otherwise the racing teams wouldn't use them on their very expensive racing motors.

-G

But that thread seemed to indicate that racing filters are built to flow better but also have worse filtration for true racing applications where flow is more important than filtration, but the A1 type filters particles better (lower micron I believe it said) and so is more for street use where you don't run 7,000 rpm all day. But that thread is just 10 pages of cobra guys talking, and not sure it is all true or not.

2/1/136:18 PM

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dave2811Member

The main difference between the FL1A and the FL1HP is the bypass relief valve opening pressure: 11-14 psi vs. 22 psi.

The FL1HP will pass more oil through the filter for a given period of time than the FL1A given all else being equal. A good thing. Is it necessary for a show car driven to cars and coffee once a month? Probably not, but what the heck.

2/1/137:25 PM

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does200Member

quote:
Originally posted by Dave2811:
The main difference between the FL1A and the FL1HP is the bypass relief valve opening pressure: 11-14 psi vs. 22 psi.

The FL1HP will pass more oil through the filter for a given period of time than the FL1A given all else being equal. A good thing. Is it necessary for a show car driven to cars and coffee once a month? Probably not, but what the heck.

Yeah, you got that, tomorrow AM Cars & Coffee! You be there for the caffeine? Those dudes on the cobra website were talking about micron rating as well, like the FL1PH was pretty high but the FL1A was much lower. What the hey is that?

2/1/138:11 PM

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dave2811Member

quote:
Originally posted by DOES 200:
Yeah, you got that, tomorrow AM Cars & Coffee! You be there for the caffeine? Those dudes on the cobra website were talking about micron rating as well, like the FL1PH was pretty high but the FL1A was much lower. What the hey is that?

Didn't make C&C today. Maybe next week.

Simply put, the micron rating is the largest size of particle that will be passed through the media. Particles larger will be blocked, so the smaller the number, the cleaner the oil. The debate would be that is it really necessary to filter down to X microns for a given application.

If you had a high pressure aircraft hydraulic system with extremely close machining tolerances, and consequences of failure are grave, you want extremely fine filtration. These systems are complex and expensive.

An automobile engine lubrication system can tolerate larger particle contamination. What that limit is the debate. I don't know.

2/2/138:12 AM

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does200Member

quote:
Originally posted by Dave2811:
quote:
Originally posted by DOES 200:
Yeah, you got that, tomorrow AM Cars & Coffee! You be there for the caffeine? Those dudes on the cobra website were talking about micron rating as well, like the FL1PH was pretty high but the FL1A was much lower. What the hey is that?

Didn't make C&C today. Maybe next week.

Simply put, the micron rating is the largest size of particle that will be passed through the media. Particles larger will be blocked, so the smaller the number, the cleaner the oil. The debate would be that is it really necessary to filter down to X microns for a given application.

If you had a high pressure aircraft hydraulic system with extremely close machining tolerances, and consequences of failure are grave, you want extremely fine filtration. These systems are complex and expensive.

An automobile engine lubrication system can tolerate larger particle contamination. What that limit is the debate. I don't know.

Thanks for the info on the microns. I would imagine you don't want one with too small micron either, as I would think it could inhibit adequate oil flow at high revs. C&C was a good day today, as you can see...