<< 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

Thanks; Lynn.  I'm using a dual mount (bought from Racing Beat, but it
is the same that Earl's sells, probably for less).  It accepts the Fram
HP-1, or -2 (no bypass valve) or equivalent.  The HPs are rated to
higher pressure - I've seen the specs, but don't remember exactly - I
think about 250 psi.  I had decided to go with the "or equivalent" but
hadn't decided which one.  I'll check the K&N.

Al

Baker Precision Bearing is charging twice what Summit charges :)
Same product.

Paul Lamar
 
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