Originally Posted by H10F250
Glad to see the answer from PGreenSVT. I thought 75 was the limit and I just noticed 80 on my way into work tonight. So now I'm on here looking for what to do when or if it gets over that.
Yeah well my fuel pump also quit on me leaving me stranded 7 hours from home since this post. This is my 3rd pump in two years and I am now of the opinion that the DF-165 is just not capable of sustaining that high pressure over time.
I had to buy a new pump to get home and have since ordered a Fuelab 41402 High Pressure Pump and 51501 FPR that I will be plumbing into my system as soon as they arrive to handle the High Pressure duties. The DF-165 will be dropped to 15-20 psi and relegated to feeding the 41402.
Some vendors have stopped selling the DF-165 as a HP pump due to the failure rate. At this point I can't really recommend them anymore either. The AD-100 and AD-150 are fine to use as feeder pumps and have been reliable in that role. For HP pumps I suggest the Fuelab or Aeromotive pumps at this time.