what lb/hr rate on stock 91 X fuel injectors?

[Ponyman460]

I have plenty of injectors from stock mustangs, but they dont look the same as the explorer. what is the rating of the stock fuel injectors?

I have a very noticable miss that I feel is an injector and need to replace it.

did some of the newer explorers come with 30lb injectors too?

thanks!

Rick

 

[boominXplorer]

99% sure they are all 19's

 

[Ponyman460]

thanks...do you know if 19's from a v8 stang will work as a replacement?

 

[BrooklynBay]

Look in the Ford Motorsport book. It has a listing of performance parts for the V8s.

 

[Ponyman460]

I found out from a buddy of mine today (who has taken apart 3 explorer motors) that they should be 19's. However, all 3 that he has taken apart had red top 30's! this is very strange to me....will do some more digging!

 

[WICKED™]

EZ - Fuel injector size calculations.

8-Cyl. engines:Horsepower / 16 = Injector size 6-Cyl engines: Horsepower / 12 = Injector size 4-cyl engines: Horsepower / 8 = Injector size

From everythign I have searched on the web for including several auto parts stores, the 4.0 OHV exploders have 19# injectors. I developed a miss in mine as well, new plugs and wires and still it misses. I am gogin to pull the injectors and Ohm them out . If that is good, I will take htem to my buddies shop and have them checked for spray pattern and flow.

 

[Josh]

The newer injectors will not work on the older motors. One is high impedence and the other is low. Cant remember which is which or what year they changed. I would guess 95.

 

[Ponyman460]

The newer injectors will not work on the older motors. One is high impedence and the other is low. Cant remember which is which or what year they changed. I would guess 95.

I also 19's from a 94-95 thunderbird...one way or another, I should be able to make them work.

 

[Ponyman460]

I swapped some stock 19lb injectors from my mustang in there and it worked like a charm. just thought I would post up the results..