Did you need resistors to run the 3.7l injectors? And which wire to which wire when you rewired to run them? I got a set from a 02 and they have been soaking in seafoam for months lol. I forgot about them
Sorry about this late response, I was never notified. No resistors required and wire-to-wire does not matter.
looking at a few of the injector sites, not every injector has the flow rates listed and at what pressure. I always hear to use the ford blue tops, or the four hole siemens... Now neon and libby injectors?? Hard to chose. Is there a list, in order of flow rate/pressure showing the injectors that will fit on a 4.0 rail and what modifications might have to fit for optimum performance on both a single rail and double/return.
some of the links don't show what the original intention was any more. Any chance some of those could be updated? And ya know, I'd really like to hear from some of the stroker guys about what injectors they've used and had success with.
The stock injectors for Renix flow 240cc, HO flow 248cc (up to 95-OBD1) and 234cc (96- up OBDII). However, the Renix and OBDI flow at 39PSI and the later OBDII ('96 onwards) flow at 49PSI.
Injector flow is always measured at 3 Bar, 43.5PSI. This is a reference point and from this you can calculate the flow to your system working pressure.
Injector size (lb/hr) = (horsepower x 0.5)/(no.of cylinders x 0.8 )
So say you have a 250 horse I6...
125/4.8=26 lb/hr injector
So for a 30 lb/hr injector, you would need about a 290 horse motor to utilize them.
Cherokees from 93 on made around 190hp stock= 19.8 lb injectors according to the above formula
The 24lb injectors should be good for some 230hp.
1995 XJ Cherokee Sport
4.5" Homebrew Lift, 4.0L HO I-6, AX-15, NP231, D30(Open)/C8.25(Locked)
33x12.5 Mickey Thompson Baja MTZ Tires, 283,000 mi and runnin' strong