i just bought a 98 that the mech said has 2 bad injectors, will the inj. out of a 98 4.6 fit the 3.8 and if not has anyone got any stock injectors that they will part with. also need a pass. side door and front fender if anyone has one of those too. thanks

 

Yes they'll fit, but you'll have to have your MAF recalibrated for 19lb injectors, your stock injectors are 14lbs.

 

how do u recalibrate it? and if i'm going to use the 19lb. gt injectors do i need to change all 6, or just the 2 that are bad?

 

You either buy a MAF from Ford that has been calibrated (factory settings) to 19lb injectors, or you buy one aftermarket. I suggest http://www.mustangsunlimited.com/ for aftermarktet.

 

judging from the price i think i'll just buy 2 new 3.8 injectors, all the forums say that since the car is not heavily modded that i wouldn't see any proformace gain anyway . correct?

 

stock you won't get any more power with larger injectors, but if you go larger, like 24lb injectors, then you won't have to do it later.

 

Fuel injectors don't make hp, they support it. For example, my GT is making between 270-280 rwhp, ranges we got on dyno. Now my stock injectors are overloading at around that point, so no matter what I do, I'm not gonna really make too much more. Now if/when, I upgrade to 24lb injectors, I'll be capable of hitting higher hp numbers. For example, I can tune my car using my software program, anp probably push my rwhp numbers up to around 290 consistantly. Then when I get my intake, that "SHOULD" push me up to around 300 rwhp. Then add on the 100lb shot of N2O I have planned at that will put me at around 380 rwhp, which is roughly where 24lbers top out at on V8s.

 

yeah thats what i have learned is that until i boost my hp level up alot higher i don;t need to change the stock injectors. now has anybody got some stock 3.8 injectors that they can part with