I have no issues pushing thru 3 filters, and have been for over 50K miles, and run about 415-430 rwhp with ~4 psi at WOT and redline.

 

I was going to say looking at the volume these filters are designed to flow, I would expect very little pressure drop unless the engine was a monster.

 

That what i was hoping to hear, thanks a bunch

 

I also have had no issues. My fuel pressure is 12 psi at idle and it goes to 10 at WOT with a mostly stock engine with new filters. When I have about 30,000 miles on filters it goes down to around 8psi and that is when I change both the original and the Cat filter. My fuel press is sensed between the last filter (Cat 1R750) and the CP3. I had some concerns about fuel jelling and when it is cold I do use Howse fuel conditioner but only once did I have a problem and I got caught with summer fuel as I have 2 tanks and did not use my truck enough to burn it off. I had to put a heat gun on my Cat filter for a few minutes and that cleared it up and I then fueled the truck up with winter fuel and added more Howes. It was - 38 below at the time.
Jim O

 

Is it best to put the W/S on the suction side and the FF on the pressure side or vice versa....TIA

Jim

 

Ideally the f/w sep is under vacuum and the final is under pressure.

 

Thanx, I wasn't sure which way was best.

Jim