Topic: gained 2mpg with change

[sharpxmen]

At the stock pressure they give about 14#s.  After I installed the high pressure fuel regulator I was getting back to stock flow rates, maybe a little under.  [...]  I'll work on getting some other injectors that will work properly with the PR211. 

those injectors you have are rated 13.5lb/hr at 36.25 psi, even with 55psi your resulting static flow was 16.6 lb/hr, still lower than the stock 17.4lb/hr so unless you crank the pressure to 60psi they will flow less than stock. at that pressure you might have flow issues with the pump so you'll need an upgrade there and the other concern is that those injectors were not made to run at such a high pressure so i wouldn't use them to be honest.

if you really want to use that regulator (and assuming you'll figure out what is happening with the 55psi you're getting) at 50 psi an injector that would work and give you the same flow as the stock Jeep injectors with a 44psi regulator are the Toyota or Geo 4 cyl 1.6L ones (dunno if the connector is the same, they are P/N 23250-16120) - this one will give you about 5% more flow than stock.

if you want the same flow or close you could use P/N 0-280-155-887 found in some Fords (this one has the compatible connector and is 16.75lb/hr at 43.5psi =>17.96lb/hr at 50 psi) or 0-280-155-600 used in VW which is 16.55lb/hr at 43.5psi (but i don't know if the connector is EV1 or not).

[dwtaylorpdx]

The 100 lb rating is for very short duration, the pump cavitates badly if it runs there very long. It will also overheat.

The factory replacement pump from Bosche specs were 100 lb short term, but has a not to exceed 55lb operating rating.

All the pumps NAPA could look up had the same spec, he mentioned several of the companies state 100 as the peak
operating pressure instead of the short term max, common problem on MOPAR and FORD pumps according to him.

Dave

[Bikerjr1]

I'm going to leave it stock until after hunting season.  I might try an upgrade after that.
JR