cch

Hey guys! Just wondering if y'all could tell me at which point are 24lb injectors just not enough? What's there capabilities and IYO do you think I should need to upgrade to 30lb' ers with the following mod list? Would my computer still be compatible? My engine keeps running lean and it's all I can think of...

'92 5.0l lx notchback

Engine mods:
-bbk cold air intake
-75mm pmas mass air.
-70 mm bbk throttlebody/egr
-trickflow street upper/lower intake
- ford racing 24lb injectors
-trickfow TW 170cc heads
-trickflow .600" lift valve springs
-trickflow 1.7rr's
-trickflow 6.5" pushrods
- comp xe270hr-12 cam (270/276 advertised duration, 218intake/224exhaust @ .50" lift, .544 lift)
- comp lifters
- Walbro el. 255 fuel pump
- kirban adj. fuel pressure regulator
- meziere el. water pump
-u/d pullies
-good oil pressure and water temp.
-a/c & smog delete.
-all egr components plugged off.

Thanks, it's greatly appreciated!

cch

anybody...?

NoGo95GT

24lb injectors can feed up to 380 N/A horsepower. 30lb injectors can support 480 N/A horsepower(this taken from a Mustang Engine book of mine).

drhoward

24 pound injectors should be more than enough for a HCI 5.0

cch

Well I was hoping to be pushing close to 360+ @ the flywheel... think it'd be pushing it?

NoGo95GT

Sorry, I meant that those numbers were at the rearwheel. 24lb injectors should suit your needs just fine.I take it you're trying to eliminate the possibilities after blowing your headgaskets.

cch

You got it. First things I'm gonna go is run the codes, check the fuel lines/rail for bends and plugs, drop the gas tank and check the pump, set it at 10* and try again.. all I can do.. Hope and pray I don't blow again... getting hard to stay optimistic.

NoGo95GT

Yeah, I would also check the fuel pump. Sometimes they work for a long time and sometimes they last only a month or two. I hope you figure out your problem. Installing headgaskets is no fun.

Baddog

Hey bro, my buddies '87 vert with a DSS Bullet 306 utilizes 24lb injectors. He makes at least 425 to the crank. He tried 30's to get more performance but got nothing more than a raw fuel stink and a lack of performance. You have similar mods but he has crazier head and cam specs. Although I can't diagnose your problem I would have to say it's not your 24lb injectors, they would seem plenty at task for your mill the way it sits. Have it diagosed for idle both in neutral and under slight load in gear, the latter has a huge effect on how the car responds as a whole on the street. I guess that's what the kids are calling tuning now lol. His car would never pass emissions here the way it's set up but he doesn't give a rusty ****. It's loud, it makes an awful stink and it's lightning fast. Isn't that what fast cars do anyway?!