Bigger Fuel Injectors for 4.6

[Grandmarchris]

Hey I found some fuel injectors that flow 40psi instead of the stock 21psi on the summit racing equip. web site..Im not gonna get them right now because my gas mileage is already shitty and with gas being $2.25/gal right now..but I want to see if these will make much of a difference on my performance and is it worth the $650 price tag..

Another question...Should I get a tornado fuel saver Ive herd mixed reviews about it...just wanting yalls input before I blow $50 on a Tornado

[Paul_]

those tornado's don't do shit. save your money. as for the injectors you'll prob need a retune of the ecm to work with those. assuming a stock motor tho, you won't see much, if any, benfit

[Grand Marquis GT]

:stupid: Your motor will run like poopy with bigger injectors....

[Grandmarchris]

So what can I do to boost power in the old beast??

[Paul_]

what year is your car? you might be ablle to locate a computer from a p71. that changes some things around. its not going tto make it a street monster or anything but the car should have a "little" more pep. not much tho. just make sure you get one identical in year to your car

also what gears are you running? if you're running 2.73's you'll see a big difference going to 3.55's or 3.73's. the car will be punchier, not faster.

a dual exhaust will also help. you can go to just about anyt competent parts place and get a complete setup if you wanna do the work yuourself. if not price around some muffler shops. also, assumoing you don't go crazy with mods, i wouldn't go bigger thasn 2 1/4" pipes. any more on a fairly stock motor and you'll lose some low end grunt. in a big car thats not good

[p71towny]

Yeah, injectors won't help anything, and the 19# are plenty fine and can even work with a supercharger. My mods have given me a little more pep. I'd just throw on some duals, gut the cats, underdrives and a better air intake setup w/p71ecm. Cheap easy & quick.

[zwack88]

Evilvic I will have to disagree with you on the tornado. I got one for my dad and it increased his mpg by 3 more mpg in his merk. There was no preformance gain though. Ya do like others above said for more performance.

[Grandmarchris]

Its got dual exaust so all I have to do is rear gears,flowmaster 40 series mufflers,p71 computer and accel cool blue air filter with cold air intake.

[Paul_]

save your money on the cold air intake. on a stock motor, even with the p71 computer, it still really won't help. plus unless you can figure out a way to get the filter element into the fender ala mustang, all you're going to do is just be sucking the hot, dirty air of the engine compartment into the engine.

on a side note about the p71 computer, make sure you get one identical in year to your car(unlress the motor/tranny''s been swapped at some point) people that have gotten mismatched years have had problems

[Lincolnmania]

gears, a shift kit, bigger throttle body......start there.....bigger injectors require a maf calibrated for larger injectors, and theres no need for it 19's are good to at least 300 hp
scott

[Grandmarchris]

My car was bulit in July of 1992 would that be AOD or a AEOD transmisson. I need to know so I get the right p71 computer for it.