stock 97 4.0 injectors?

[Programbo]

Part number should be 0280156162. At 3 bar they flow 24cc/23.61 lbs. They would flow right around 25 lb @ 49psi

Is there any specific website you guys are using to get these ratings? The reason I ask is becuase I have been messing with injectors for a few years now and have found if you look at 4 sites you'll see 4 different flows. . Is there some sort of "official" rating list? Oh and one that might not skip a bunch of numbers like most.

[TJ9999]

Would be interested in a website with calculations too.

In the meantime I found out: exact specs are 49.2 psi ± 5 psi for 97-04, and 58 psi ± 2 psi for 05 and 06 models.

[jeepman]

Locate the part number on the side of the injector because they have different options of injectors for example:

53030778 Fuel Injector 4.0L 87-99 (EV1 Grey 23.2Lbs@49PSI)
04854181 Fuel Injector TJ 4.0L 00-05 (EV6 Blue 19Lbs@49PSI)

But are'nt those just stock single port injectors? Aside from #/psi I thought one of the main reasons for an injector "upgrade" was to get the 4-port design ones for better fuel atomization/delivery.

Yes they are stock which is what I believe the OP was asking about...

I do feel that the 4 pin will be better then the single pin however I have yet to see any real data to prove one is better then the other and single pin are real easy to get in many easy to find sizes...