Topic: 4 port nozzle injectors in a tj

[cman]

Hi i thinking about putting some 4 nozzle fuel injectors in my 98 jeep tj 2.5l
But witch cars come with the ones that will fit my tj
All i find is info on the yj injector swap and not much on the tj
I here ford and dodge neon dohc 2.0l but what years
I wood like so info on the swap

[grumpygy]

http://4bangerjp.com/forums/index.php/topic,10489.0.html

[cman]

ok does anyone have  more info

[sharpxmen]

http://4bangerjp.com/forums/index.php/topic,10489.0.html

that was for a 2.4L, he's got a 2.5 and i don't know if they're the same flow (probably not).

[cman]

Yes I'm. Looking for ones for a tj with a 2.5l

[sharpxmen]

Yes I'm. Looking for ones for a tj with a 2.5l

there was a guy here that found some that worked as far as flow goes, i can't remember the details but the post should be somewhere in the work bench i think.

[cman]

I did find these http://www.fiveomotorsport.com/jeep-23lb-fuel-injectors

[sharpxmen]

I did find these http://www.fiveomotorsport.com/jeep-23lb-fuel-injectors

those will work and will have a minor increase in flow (negligible, so almost like stock).

EDIT: scratch that, i found them listed with EV6 connector, i think you have EV1 so better call them before you order to make sure - the picture from the link you posted shows the EV1 connector and if that is accurate it will work (they say no special wiring so should be fine but better check with them before).

[FourbangerYJ]

They have EV6 to EV1 adapters and vise versa at five0 also if those injectors are the ones you want.

[FourbangerYJ]

those will work and will have a minor increase in flow (negligible, so almost like stock).

EDIT: scratch that, i found them listed with EV6 connector, i think you have EV1 so better call them before you order to make sure - the picture from the link you posted shows the EV1 connector and if that is accurate it will work (they say no special wiring so should be fine but better check with them before).

Those look like the stock EV1 connector. They also list them as no wiring changes needed for the 2.5, 4.0, and 5.2 motors.

I would agree that not much would be gained by going to the 4 hole VS. the stock 1 hole. The 4 hole is a better design for sure, but hard to say if you could feel or notice a improvement without a dyno.

[Jeffy]

Those look like the stock EV1 connector. They also list them as no wiring changes needed for the 2.5, 4.0, and 5.2 motors.

I would agree that not much would be gained by going to the 4 hole VS. the stock 1 hole. The 4 hole is a better design for sure, but hard to say if you could feel or notice a improvement without a dyno.

The whole 1 = 4 was for the 2.4L and even then it seems to all be based on speculation.  I don't think anyone's actually tried it.

As for TJ's you just have to look at the stock flow rate and look for injectors that are rated a little above that.  BUT keep in mind that the stock injectors are rated @39 lbs and not @42lbs like most of the Bosch.  The flow rate is discussed in the Fuel Injector thread in the FAQ.  So read the FAQ.

[cman]

Ok
I find some more info o guys doing the mod
http://www.jeepforum.com/forum/f9/neon-injector-mod-1325666/


http://www.jeepforum.com/forum/f11/injector-swap-writeup-4-0l-1224714/

http://www.jeepforum.com/forum/f9/tj-2-5l-fuel-injectors-744843/

[cman]

 O and jeffy the injectors in the faq is very confusing so  it is saying  the the 24 ford ones F5DE-B5A is a up grade and are they a 4 nozzle/ holes in the end of them ?

[Jeffy]

Like I said, you have to pay attention to the fuel pressure what they are rated for.  The TJ is rated for 23.2psi/hr @45psi, I think.  (You will want to double check that.) The FSM says the fuel pressure should measure 49.2 psi +/- 5 psi at idle.

[sharpxmen]

23.2lb/hr at 49psi

the ones he listed are 22.75lb/hr at 43.5psi which means 24.14 at 49psi