<< Lynn;
 > Do I read that as 80 PSI drop across the filter at 16 GPM??  That's
 > huge.  On my dyno runs we measured 14 GPM at 6000 rpm.
  >>

No, that is the flow rating. Typically the bypass valve (if so equipped) will
open at 8 to 10 PSI of differential, and bypass the element completely. This
is not a factor unless most of your engine is already stuck in the element.
The drop (amount of pressure lost just to force the oil through the media) is
only a few pounds. There is a bunch of element area in there. The engine builder
says he wants 16 GPM or better, so I use two of these on a double mount. So
if it were required, we could flow 32 GPM.

We try to stay at 100 PSI and settle for 95 PSI at 180 degrees with Redline
40 Wt. We use racing rotor and main bearings. The racing bearings are in rotors
that are honed out a bit, and the bearing is bolted in place with a little
set screw, and the most of the head is ground off.

I have these mounted right behind the LF tire. They get blasted with rocks
and sand, and after two weeks you can still read the printing on the cans. Very
tough filters.

On the same page in the Summit catalogue is a picture of a Fram PH8A. Fram
does sell some racing filters that seem to hold up OK. This is not one of them.
I don't think they even make their racing filters.

A street Fram filter in an airplane, is a disaster waiting to happen. I blew
one off of my Fiat race car at 75 PSI. The crimp around the top of the can
unwound.

I used to add wicks filters to any application that had a Fram cross, when I
worked for the Government. Wicks had a sales kit that was the Fram PH8A and
the Wicks 51515. Both were in pieces. The wicks element had 416 square inches of
media with steel end caps. The Fram had 205 square inches of media and paper
end caps. And the Fram was more expensive.

Wicks and Champion make most of the aftermarket filter elements. For the most
part, the surface area of the media determines the pressure drop across the
element.

NAPA sells Wicks filters.

The K&N P/N is HP3001.

Lynn E. Hanover

 
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