Greetings,

 

I intended to use an HP1 racing filter, but thought it wouldn’t fit, so I picked up a shorter PH43 filter.   As it turns out, I was able to fit the larger filter by turning it about 45 degrees from vertical, but when I was considering the other filter, I asked Fram for the pressure rating.  Here’s their reply for both filters in case anyone is interested. 

 

Cheers,

Rusty

 

Fram’s reply:

 

The PH43 has a burst pressure rating of 200 PSI.  The recommended operating pressure should not exceed 80 PSI.

 

The HP1 has a burst pressure rating of 500 PSI.  The recommended operating pressure should not exceed 200 PSI.