Vortec 454 Injectors

[454C2500Longbed]

Ha! I'm gonna grab a set this weekend at the pull and pay.

Lucky. I'm definitely not jealous. Lol. At least these are a nice upgrade over stock.

 

[454C2500Longbed]

Lemme know how well those injectors fit the OEM fuel rail/manifold, and what--exactly--they're supposed to be found on.

I'm gonna need injectors or injector cleaning on my '97 7.4L.

Yeah, I realized how big the O-rings are when I pulled them out of the box, really hoping they fit. They were listed for a 96-03 4.6/5.4 and they are OE Ford. @Carlaisle runs 96 Mustang 4.6 injectors, so these should fit. I'll post some pictures when and if I get them on. They've got some nice weight to em, I like the metal body.

 

[BNielsen]

Lemme know how well those injectors fit the OEM fuel rail/manifold, and what--exactly--they're supposed to be found on.

I'm gonna need injectors or injector cleaning on my '97 7.4L.

There's a big list of injectors that will fit in 454s posted in the thread;
Vortec 454 Thread

 

[RichLo]

There's a big list of injectors that will fit in 454s posted in the thread;
Vortec 454 Thread

Yea, I have the Bosch upgraded 5.0 ones listed in that thread. I am just waiting for warm weather to tackle that project. I dont want to rush it or crack that fuel rail because its cold.

I'm going to just run them with a stock tune for a while and watch the LTFT but I may need that JET tuner if it starts getting to the limit of the fuel trim table.

 

[BNielsen]

Yea, I have the Bosch upgraded 5.0 ones listed in that thread. I am just waiting for warm weather to tackle that project. I dont want to rush it or crack that fuel rail because its cold.

I'm going to just run them with a stock tune for a while and watch the LTFT but I may need that JET tuner if it starts getting to the limit of the fuel trim table.

I've got a set of 28# LS1 injectors I was going to swap in to replace by 5O Motorsports 19# Blue Knights; but then I got my replacement motor and decided to hold off, I'll build the new mill (headwork, cam, injectors) and swap the whole works in then.

 

[TJ400]

I just put new injectors in mine from fiveomotorsports.com. Bosch. I wouldn't go with cheap injectors. Direct replacement, doesn't require a tune. Although I have it tuned with an old Hypertech 3 tuner. Improved trans shift points and firmness. Also got rid of the fuel shutoff and dropped the thermostat to a 180.

 

[454C2500Longbed]

I just put new injectors in mine from fiveomotorsports.com. Bosch. I wouldn't go with cheap injectors. Direct replacement, doesn't require a tune. Although I have it tuned with an old Hypertech 3 tuner. Improved trans shift points and firmness. Also got rid of the fuel shutoff and dropped the thermostat to a 180.

Yeah, I got Bosch ones, I put everything in my other thread. I will be doing all of those things as well, just haven't gotten to it yet. Truck runs really hot so new thermostat and coolant flush are on the list.

 

[Supercharged111]

I just put new injectors in mine from fiveomotorsports.com. Bosch. I wouldn't go with cheap injectors. Direct replacement, doesn't require a tune. Although I have it tuned with an old Hypertech 3 tuner. Improved trans shift points and firmness. Also got rid of the fuel shutoff and dropped the thermostat to a 180.

Did you also get rid of the 60 second PE delay and dump some timing into the thing?

 

[Bachert24]

That’s really odd you need a tune with just injectors. Anyone tried injectors without a tune? Pulse and spray duration spills be controlled by ecm based off of throttle and air flow. I know they are different but my 05 Grand Prix I was able to swap in bigger injectors to run E85 and I didn’t need a tune until I went with a smaller pulley and started using E85. The ecm doesn’t know your swapped injectors so it shouldn’t matter. Am I wrong?

 

[Supercharged111]

That’s really odd you need a tune with just injectors. Anyone tried injectors without a tune? Pulse and spray duration spills be controlled by ecm based off of throttle and air flow. I know they are different but my 05 Grand Prix I was able to swap in bigger injectors to run E85 and I didn’t need a tune until I went with a smaller pulley and started using E85. The ecm doesn’t know your swapped injectors so it shouldn’t matter. Am I wrong?

Very. You said it: your PCM doesn't know your injectors have changed. So now you're dumping more fuel than necessary and messing everything up.