Harmful to use oversize fuel injectors?

Avaric3 · October 31st, 2007, 09:31 PM

is it bad to use oversize fuel injectors on my car? for example say i only need 30lb injectors but i use 42lbs instead, would that be bad?

HMUSN · October 31st, 2007, 09:32 PM

yes.

unless you tune for it you will run rich and wash all the oil off your pistons.

Avaric3 · October 31st, 2007, 09:35 PM

i would have a dyno tune with it cuz im also installing a 4.2 stroker kit and h/c/i for this summer. if its tuned im good than? cuz i can get barely used 42lb injectors for like $120 but for 30lb injectors they would cost me like $300 new

HMUSN · October 31st, 2007, 09:38 PM

as long as you put the injectors in IN the shop you will be fine.
I wouldn't drive it there without at least a canned tune for them.

Avaric3 · October 31st, 2007, 09:48 PM

ya im having crazy horse racing install and tune everything for me so theres no driving in between the install and the tune

HMUSN · October 31st, 2007, 09:53 PM

your good to go then.

Onemanzu · November 1st, 2007, 12:42 AM

your going to run 42#'s on your engine?? what do cobras have 39's??

97TunedMustang · November 1st, 2007, 12:51 AM

Originally Posted by Onemanzu

your going to run 42#'s on your engine?? what do cobras have 39's??

terminators that is and yes they have 39lb injectors

Onemanzu · November 1st, 2007, 01:11 AM

Originally Posted by 97TunedMustang

Originally Posted by Onemanzu

your going to run 42#'s on your engine?? what do cobras have 39's??

terminators that is and yes they have 39lb injectors

oh same thing just one can kick ass and the other one is a lil older

anyways in my honest opinion i think that 42's would be over kill but if you can manage to tune it to make it work then go for it

dark-samurai2 · November 1st, 2007, 05:34 AM

all your going to do is flood your cylinder and because of your mixture being so rediculously rich the gas might not get all incinerated and leak down to the oil pan and ruin engine components. and im pretty sure this will happen because there was a guy at my school a while back who did this and it happened to him. we all just kinda laughed at him haha.

Drgnracin72 · November 1st, 2007, 12:47 PM

like jon said, as long as you tune fr them youll be just fine. the pcm controlls how long the injector is squirting so if tuned, it will not hold open as long and will still get the right amount of gas inside. im running 42s on my car and its oall motor and it doesnt have any hiccups

Onemanzu · November 1st, 2007, 12:53 PM

Originally Posted by drgnracin72

like jon said, as long as you tune fr them youll be just fine. the pcm controlls how long the injector is squirting so if tuned, it will not hold open as long and will still get the right amount of gas inside. im running 42s on my car and its oall motor and it doesnt have any hiccups

but you have a built nitrous tuned monster...

HMUSN · November 1st, 2007, 12:55 PM

that isn't the point.

I could stick 68 pound injectors on a stock v6; as long as I tuned for them if would run fine.

Onemanzu · November 1st, 2007, 12:58 PM

Originally Posted by HMUSN

that isn't the point.

I could stick 68 pound injectors on a stock v6; as long as I tuned for them if would run fine.

okay i know i was just saying to be an ass thats all

itschristorres8 · November 1st, 2007, 04:23 PM

as long as you dont go with to small of an injector...and you get tuned for it. you'll be good.

everything HMUSN is right...i really dont know why im posting this...just wanted to add not to go to small either

October 31st, 2007, 09:31 PM	#1
Avaric3 Hardcore Enthusiast 2002 Ford Focus slow as fuck Join Date: Apr 2007 Location: M-Pan, NJ Posts: 2,556 iTrader: 4 reviews	Harmful to use oversize fuel injectors? is it bad to use oversize fuel injectors on my car? for example say i only need 30lb injectors but i use 42lbs instead, would that be bad? __________________ 99 V6 Mustang-sold 02 Ford Focus-sold 98 Camaro Z/28-lid, catback

October 31st, 2007, 09:32 PM	#2
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	yes. unless you tune for it you will run rich and wash all the oil off your pistons. __________________

October 31st, 2007, 09:35 PM	#3
Avaric3 Hardcore Enthusiast 2002 Ford Focus slow as fuck Join Date: Apr 2007 Location: M-Pan, NJ Posts: 2,556 iTrader: 4 reviews	i would have a dyno tune with it cuz im also installing a 4.2 stroker kit and h/c/i for this summer. if its tuned im good than? cuz i can get barely used 42lb injectors for like $120 but for 30lb injectors they would cost me like $300 new __________________ 99 V6 Mustang-sold 02 Ford Focus-sold 98 Camaro Z/28-lid, catback

October 31st, 2007, 09:38 PM	#4
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	as long as you put the injectors in IN the shop you will be fine. I wouldn't drive it there without at least a canned tune for them. __________________

October 31st, 2007, 09:48 PM	#5
Avaric3 Hardcore Enthusiast 2002 Ford Focus slow as fuck Join Date: Apr 2007 Location: M-Pan, NJ Posts: 2,556 iTrader: 4 reviews	ya im having crazy horse racing install and tune everything for me so theres no driving in between the install and the tune __________________ 99 V6 Mustang-sold 02 Ford Focus-sold 98 Camaro Z/28-lid, catback

October 31st, 2007, 09:53 PM	#6
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	your good to go then. __________________

November 1st, 2007, 12:42 AM	#7
Onemanzu ¡ʇsnq ɹo uʍop ǝpısdn Join Date: Oct 2006 Location: Looking for free hand jobs in poland springs nebraska... silly gooses Posts: 12,551 Blog Entries: 1 iTrader: 0 reviews	your going to run 42#'s on your engine?? what do cobras have 39's?? __________________ My Foz

November 1st, 2007, 12:47 PM	#11
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,635 iTrader: 2 reviews	like jon said, as long as you tune fr them youll be just fine. the pcm controlls how long the injector is squirting so if tuned, it will not hold open as long and will still get the right amount of gas inside. im running 42s on my car and its oall motor and it doesnt have any hiccups __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

November 1st, 2007, 12:55 PM	#13
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	that isn't the point. I could stick 68 pound injectors on a stock v6; as long as I tuned for them if would run fine. __________________

November 1st, 2007, 04:23 PM	#15
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,806 iTrader: 2 reviews	as long as you dont go with to small of an injector...and you get tuned for it. you'll be good. everything HMUSN is right...i really dont know why im posting this...just wanted to add not to go to small either __________________ [SIGPIC][/SIGPIC] Acmillr loves me

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