PF25 - why not use a shorty?

Discussion in 'Engine Topic' started by Chuck71RS, Sep 12, 2020.

  1. KingofThings

    KingofThings Veteran Member

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    I just looked and less than $10 at WhaleMart. ;)
     
  2. KingofThings

    KingofThings Veteran Member

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    I agree because I want it to be below the headers for mounting and removing. A shorty can be a real PITA with headers.
     
  3. RS1979

    RS1979 Veteran Member Lifetime Gold Member

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    I use the Wix 51069 because the longer one sits really close to my headers. I don't want my exhaust to unnecessarily heat my oil up.
     
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  4. KingofThings

    KingofThings Veteran Member

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    Good point, though your headers must be far below it for I wouldn't think there'd be any real measurable difference. I wonder if there is some type of wrapper, short of aluminum foil, just for this, and does it work?
     
  5. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    Filters are determined at the OEM level by what filter fits in all applications of that engine-vehicle. So if there is some obscure option that crowds the area the where long filter would occupy, they just default to the short filter across the board. Internally there is no difference in this case other than more filter area so more capacity for contaminants. Keep in mind though that if you get too close to the headers that there is a heat factor to think about. I have seen an instance where the paint was burned on a long filter from the header tube. This could cause an issue internally with the filter media or even localized boiling of the oil. In a prior job I was an engineer with FRAM. It's amazing the photos of what folks do to filters to get them to fit.
     
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  6. KingofThings

    KingofThings Veteran Member

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  7. hd_cat

    hd_cat Member

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    The difference in capacity and the space requirement should be your main concerns, the larger filters are often called Quart Filters, though the capacity is less than one quart. The additional capacity has always been the driver for me to use the larger filter, the larger filter element is an added bonus. I use the Wix 51061 after visiting their manufacturing facility in North Carolina in the late 1980s, quality finishing operation at that time!
     
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  8. cadillac_al

    cadillac_al Veteran Member

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    It does depend on your headers. Some headers run very close to the oil filter and some don't.
     
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  9. sandlapper

    sandlapper Member

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    for sbc/BBC, I like WIX 51060. A little longer and has more media for greater filtering efficiency. Also has No By-Pass valve (OE filter adapter base already has one) but it does have a silicone Anti Drain-Back valve (sister 51061 does Not). I know some say ADB valve not needed when filter is vertical but I believe in siphon. Regardless, an ADB valve cannot hurt.
    specs https://www.wixfilters.com/Lookup/PartDetails.aspx?Part=230356

    yes, new to forum but not to subject. :bowtie:
     
    Last edited: Oct 9, 2020
  10. biker

    biker Veteran Member

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    Welcome aboard!
     
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