MustangWorks.com : Ford Forums - View Single Post - what i have to do to upgrade from 19lb to 24 injectors

Unit 5302 · 12-19-2004, 04:22 AM

I really have to wonder about a B303 GT-40 aluminum head with 9.0:1 setup making 345hp. I'm sorry, but I see the combo in the 300-320hp range unless it's carbed, and extremely well tuned. Maybe they're rating in 99 Cobra hp?

19lb injectors are enough for that combo.

MAF is not necessary to run 24lb injectors. Period. An adjustable FPR is a "should" and may be required for smooth idle. Also, stepping up to 24lb/hr injectors is not warranted unless you plan on going to forced induction or a race motor. There are very few N/A 5.0's out there making the kind of power that would make an injector upgrade necessary.

12-19-2004, 04:22 AM	#12
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Re: what i have to do to upgrade from 19lb to 24 injectors I really have to wonder about a B303 GT-40 aluminum head with 9.0:1 setup making 345hp. I'm sorry, but I see the combo in the 300-320hp range unless it's carbed, and extremely well tuned. Maybe they're rating in 99 Cobra hp? 19lb injectors are enough for that combo. MAF is not necessary to run 24lb injectors. Period. An adjustable FPR is a "should" and may be required for smooth idle. Also, stepping up to 24lb/hr injectors is not warranted unless you plan on going to forced induction or a race motor. There are very few N/A 5.0's out there making the kind of power that would make an injector upgrade necessary.