Oil Filters-Which? -One or Two?
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Oil Filters-Which? -One or Two?

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    Gone in a Flash! Speed of Heat's Avatar
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    Default Oil Filters-Which? -One or Two?

    I'm starting to re-plumb the oil system in my v-drive daycrusier. Its a 496 BBC 600HP n/a deal. Nothing special, but I will run it for long periods at RPM-RPM. I want it to last, so the question is; 1 filter or 2 filters on a remote mount. I have a pretty big cooler and the motor has a large gated pan. I trashed the little junky aluminum filter mount and will probably go with a Hamburger setup unless someone recommends something better. Also which size of filter? HP1, HP 4 or HP6------Ya, I know, don't use Junk Fram filters, but thats the way all the catalogs list them. Baldwin or Wix?
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    Quote Originally Posted by Speed of Heat View Post
    I'm starting to re-plumb the oil system in my v-drive daycrusier. Its a 496 BBC 600HP n/a deal. Nothing special, but I will run it for long periods at RPM-RPM. I want it to last, so the question is; 1 filter or 2 filters on a remote mount. I have a pretty big cooler and the motor has a large gated pan. I trashed the little junky aluminum filter mount and will probably go with a Hamburger setup unless someone recommends something better. Also which size of filter? HP1, HP 4 or HP6------Ya, I know, don't use Junk Fram filters, but thats the way all the catalogs list them. Baldwin or Wix?
    Baldwin, Wix or K&N would be my recomendations and 2 normal size filters. Most the dual mounts accept the Ford or HP1 (Fram #) style filters. You could also go with one HP6 size filter on a remote.

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    cfm
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    Run a set up where the external line to block adapter removes the factory bypass adapter. Use big enough fittings /lines/ports (-10 is min, many like -12 on high reving bbc's) and one large filter will be fine. Napa Gold is Wix and works well also.

    Is your block Mark IV or Gen V/VI ? If Gen V/VI there is oil psi bypass valves in oil filter pad on block that need to be replaced with higher psi differential ones.

    Edit: Many like to place filter before oil cooler. This will keep the chance of getting crap in oil cooler less likely and you can then put an oil temp gauge sender in unused port in remote oil filter adapter and thus get oil temp before cooler.
    Last edited by cfm; 09-09-2008 at 04:08 AM.

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    Senior Member CK7684's Avatar
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    I'm running a System 1 oil filter...

    http://www.system1filters.com/

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    Quote Originally Posted by cfm View Post
    Many like to place filter before oil cooler. This will keep the chance of getting crap in oil cooler less likely and you can then put an oil temp gauge sender in unused port in remote oil filter adapter and thus get oil temp before cooler.
    Best case is to put the filter just prior to oil in. The filter should be the last thing the oil see's before entering the engine. That way, if there is a problem, or some debris from manufacturing come out of the cooler, lines ect. it gets trapped in the filter and not in a bearings!
    I also believe it is best case to monitor engine oil temp just before it goes into the engine and not coming out/in the pan. The delta will typicaly be between 20-40 degrees higher than the temp entering depending on system, hp, coolant temp ect.
    Some people like to monitor engine oil out temp to make sure everything is fine, but if there is a sudden rise in oil out, it is usualy too late anyway!

    Almost forgot, one high flow filter is plenty, especialy on something that gets serviced regularly. Multiple filters just add to flow restriction and that is a bad thing!

    IMHO

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    Resident Ford Nut Sleeper CP's Avatar
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    Ours is set up to filter the oil hot then to the cooler. Always thought filtering the oil hot was better.

    Currently single 1 qrt. System One. I pulled it out for two trips and put a Moroso in. What a pain in the ass cutting those things up. I think the System One is only down to 30 microns.

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    gn7
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    Quote Originally Posted by Warp Speed View Post

    Almost forgot, one high flow filter is plenty, especialy on something that gets serviced regularly. Multiple filters just add to flow restriction and that is a bad thing!

    IMHO
    That's a pretty broad statement there Warp. I run 2 filters and it does NOT add restriction, it reduces it because the oil can go thru either filter as in paralell not series. Read next post



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    gn7
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    Quote Originally Posted by Speed of Heat View Post
    I trashed the little junky aluminum filter mount and will probably go with a Hamburger setup unless someone recommends something better.
    I wouldn't run a Hamburger remote on a lawn mower, unless you like having VERY clean oil with a TON of restriction, because it runs all the oil thru both filters and that is totally senseless, as Warp posted earlier, one good flowing filter Like a Baldwin, Napa/wix, K&N etc is all you need, so long as you don't remove the filter bypass. If you don't want the bypass, I'd run a twin/paralell filter setup, the long truck filter, or the HP 6 type



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    Quote Originally Posted by gn7 View Post
    That's a pretty broad statement there Warp. I run 2 filters and it does NOT add restriction, it reduces it because the oil can go thru either filter as in paralell not series. Read next post
    If you need to run to filters "parallel" to cut down on restriction, I think your running the wrong filter in the first place. The longer the path is, the greater it reduces flow naturaly, let alone the added weight and complexity. IMHO
    The only time I woud run 2 filters is in a dirty enviroment that goes long running periods without changing (diesel trucks, heavy equiptment ect.) and not generaly in any type of motorsports, let alone in a pleasure craft.
    How much does the 2 "paralell" filters reduce the restriction over one flow wise, say @ 12-14 gals/min?
    Yes, pretty broad but fairly confident!

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    Quote Originally Posted by Warp Speed View Post
    Best case is to put the filter just prior to oil in. The filter should be the last thing the oil see's before entering the engine. That way, if there is a problem, or some debris from manufacturing come out of the cooler, lines ect. it gets trapped in the filter and not in a bearings!

    Almost forgot, one high flow filter is plenty, especialy on something that gets serviced regularly. Multiple filters just add to flow restriction and that is a bad thing!

    IMHO
    Ahhh....heres where I get to argue with the Chevy guy IMO a filter should be placed before the cooler, in the event of a engine failure the filter will keep debris out of the cooler, not to say the cooler will not need to be cleaned but there will be alot less shit in the element. Also hot oil is easier to filter than cool oil.

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    Quote Originally Posted by 058 View Post
    Ahhh....heres where I get to argue with the Chevy guy IMO a filter should be placed before the cooler, in the event of a engine failure the filter will keep debris out of the cooler, not to say the cooler will not need to be cleaned but there will be alot less shit in the element. Also hot oil is easier to filter than cool oil.
    Ah yes, the Ford Guy!

    The problem is if there is anything that comes out of the cooler during operation, it will surely destroy the engine. You can clean them and clean them till your blue in the face, but nothing will duplicate running hot oil through them, subjecting them to vibration ect. That is when the unexpected can come out of them.
    As far as oil flow, what is the flow reduction delta with a 20-30 degree drop you typicaly acheive through the cooler. Like I said, if it makes a big differance, you need a differant filter or better oil!!
    I get what you are saying on the flow deal. We used to by-pass the filter (along with the cooler of course) for qualifying, but after doing some testing on this, the pressure drop was so minimal that we stopped doing it.
    as far as the filter saving the oil cooler, you are right, it will keep most debris out of it during a failure, but I would rather have to replace the cooler after such failure, than have a cooler itself be the cause of the failure.
    It is all risk versus reward, and in this especialy, the risk if far greater than the reward.

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    cfm
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    Quote Originally Posted by Warp Speed View Post
    Ah yes, the Ford Guy!
    as far as the filter saving the oil cooler, you are right, it will keep most debris out of it during a failure, but I would rather have to replace the cooler after such failure, than have a cooler itself be the cause of the failure.
    It is all risk versus reward, and in this especialy, the risk if far greater than the reward.
    Point taken. How common is this ? IE:cooler having crap in it new ? Or chance of something breaking free ? Do I wanna know ? LOL.

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    Quote Originally Posted by cfm View Post
    Point taken. How common is this ? IE:cooler having crap in it new ? Or chance of something breaking free ? Do I wanna know ? LOL.
    It seems more common than it should be!! Even the best hand built heat exchangers can have stuff fall out of them. The more complex the designs (usualy the most efficient ones) are the hardest to protect from this no matter how careful you are during the manufacturing and cleaning process!

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    I hear Mobil 1 filters work very well.



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