What are the best injectors to use? I have 98 motor with a 99 intake.Im putting on a F&B 66mm throttle body and i was going to change the injectors wile i have the intake manifold off. Should i use a performance injector of some kind? I do have a custom cam smog is not a issue . We race MDR class 3 Thanks for your help
-
Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.
looking for best injectors
- Thread starter NRT_Chris
- Start date
XgeekstarX
NAXJA Forum User
- Location
- winter springs, florida
do a search on ford injectors.
- Location
- Lafayette, CA
Hijack-What are the best injectors for Renix motors? Depending on what you have done to an engine, are some injectors better then others?
XgeekstarX
NAXJA Forum User
- Location
- winter springs, florida
Starboard M said:
XgeekstarX said:
old_man
NAXJA Forum User
- Location
- Loveland, Colorado
The ford performance injectors work pretty good. Don't go above 21# on a stock motor. The Renix is around 19# stock. You can score pulls on ebay pretty reasonable.
Iirc unless you are doing some sort of forced induction or stroker there's no advantage in going to higher flow injectors on the later (97-01?) 4.0s. If you actually need more more fuel look into an adjustable fuel pressure regulator and/or adjustable MAP sensor.
Take a look at Dyno's injector page: http://www.jeep4.0performance.4mg.com/tech_specs.html
Take a look at Dyno's injector page: http://www.jeep4.0performance.4mg.com/tech_specs.html
Last edited:
Dr. Dyno
NAXJA Forum User
- Location
- Al Ain, UAE
semisynth said:
The '96+ 4.0's have an in-tank 49psi fuel pressure regulator so an adjustable unit isn't an option. The stock '98 injectors can cope fine with a modified 4.0 as long as it remains naturally-aspirated.
