I am planning on doing a fuel bowl rebuild and HPOP o-rings in the next month or so. No problems, just PM. I am looking at maybe doing the HPx and FRx mods at the same time. Is this a good idea and is there anything else I should consider? You can see my mods in my signature.

Ryan

 

those are very popular preventive maint/mods.you might do a search for failure prevention. it will point you to the weaker part of your truck.one thing to consider is dropping the fuel tank for tthe hutch & harpoon mod.

 

Ryan I would say at this point for you the HPx and FRx mods couldn't hurt since you will already be into fuel and HPOP. And depending on the miles on your truck I would consider replacing the HPOP lines and instead of repairing your old HPOP I would get a T500 then you really don't even need a HPx. And with stock injectors a T500 itself will make a big differents. Stock split shot injectors do well with a HPOP upgrade. I would also spend a couple extra bucks and replace ALL the fuel line sleeves to the viton sleeves. Now since you will be working on fuel lines make sure to mod the pass fuel line where the hold down clamp is in the middle of the head.

And if still interested there are a few more things I did when I did my fuel bowl, lines, T500, oil galley oring upgrades, banjo bolt orings, upgraded hpo fitting on the heads. Oh Yea oil rail end plug oring upgrade too.The T500 already comes with new fittings.

Now some people say these banjo bolts are a waste of money but I think they are really trick and NO more oring. Driven Diesel High Flow Banjo Bolt Kit I ran out of money so I just modded mine and replaced orings with the viton ones.

 

Since you are working on the HPOP then you can just remove the check valves behind the two hose fittings and that should function as an HPx. In my opinion, the HPx is just another place for a potential leak or hose failure and isn't necessary on a stock engine. One of my trucks has an HPx and I haven't noticed any benefit compared to the other trucks with standard configuration.

I just removed the FRx from two of my trucks this past weekend since I noticed the hoses were starting to get worn through by rubbing on other components. I haven't noticed any difference in performance other than slightly reduced fuel pressure.

I would spend the money on a fuel pressure gauge or AE if you don't have those items yet.

 

What is an AE?

Ryan

 

Good advice from Greg, +1 on FP gauge. Here's AE:

Riffraff Diesel: AutoEnginuity Total Ford Enhanced Bundle