Bigger injectors on stock engine?

[95mustanggt]

Would 30# injectors be really, really bad for my 95 GT?

(modifications in sig)

[USMC302]

Well, first you would have to get the tube that goes along with the injectors for the Mass Air meter, which will be costly and without heavy mods or at least 350 horsepower you really don't need that big of an upgrade. Your computer would most likely adjust anyway to keep the right fuel/air mixture and you would not see any benifit from the 30's. They are good supporters of horsepower and make room , but they are not producers, kind of like pulleys. if you plan on spraying or boosting then I would say go for it. they would be needed to support such an application.

[chris91LX]

19# injectors will handle up to about 300hp. You could put the 30# injectors on your car or throw the money out the window and get about the same result with a stock motor. Put the $200 into pulleys, exhaust or suspension and you'll get more bang for the buck. You won't need bigger injectors unless you put on new heads, cam and intake, or put on a blower, a turbo or run a butt load of nitrous.

[SCOTTLT79]

hey 95mustanggt,
I hate to change your subject but I was curious how your exhaust sounds with the off road and the dynomax. and what kind of dynomax you have. I was thinking about going with the mac off road h and the super turbo cat back system but I was told that the dynomax aren't that loud. I'll check this thread later but if you could send me a private message, that would be great. Its scottlt79.

thanks

[95mustanggt]

I'm not trying to get any performance out of the 30#'s. I already have a set of pulley's in my trunk .

I think my injectors are shot and I don't want to put another set of 19#'s on because eventually I want to go with TFS Heads, TFS Intake and TFS #1 cam. It will just be a while before I can afford to do this much to the car, so that's why I was wondering if I could run 30's without damage to the car.


SCOTTLT79 check your PM

[USMC302]

go with 24's!

[RPM427]

I agree, 24lbs/hr will work great with heads/cam. Naturally apirated those will support 400 hp, and will work on your stock engine. You will just need to get a matching MAF sensor.

[95mustanggt]

I've heard bad things about 24# injectors.

Although I probably could run 24# injectors with no problem on the stock set up. I just don't want to go with 24#ers and after I install my heads/intake/cam set up have someone tell me I need 30's. I have to recalibrate my MAF, which I don't want to be doing more than once.

[chris91LX]

Another option would be to buy someone's old 19's (like mine for instance ) for like $20 and saving the $200 for later. Or you could check the ones you have to be sure you even have a problem. I also agree that the 24's are a much better choice for the combo your leaning toward.

[95mustanggt]

Originally posted by chris91LX
Another option would be to buy someone's old 19's (like mine for instance ) for like $20 and saving the $200 for later. Or you could check the ones you have to be sure you even have a problem. I also agree that the 24's are a much better choice for the combo your leaning toward.

I'll keep that in mind

I THINK that I have an injector problem. I have to perform a test on the fuel system first. My shraeder valve broke on me and Ford has been taking a couple days to get the part. It should be in this afternoon and hopefully I'll get the test competed.

Seriously, I may have to talk to you about your old injectors, if I need them.

[USMC302]

Yeah, lots of poeple find it hard to tune the 24's and MAF perfectly. The Cobra computer and MAF is the ideal components to use from Ford when using the 24's for the best tune. But then again that's more money. I use the 24's with a C&L 73mm with no problems and excellent idle. I guess I got lucky. Most don't have many problems at all but there are a few that have stumpers. Good luck!

[95mustanggt]

Originally posted by USMC302
Yeah, lots of poeple find it hard to tune the 24's and MAF perfectly. The Cobra computer and MAF is the ideal components to use from Ford when using the 24's for the best tune. But then again that's more money. I use the 24's with a C&L 73mm with no problems and excellent idle. I guess I got lucky. Most don't have many problems at all but there are a few that have stumpers. Good luck!

USMC302, what injectors do you use for your SC 95 GT?

[USMC302]

19's but I wouldn't advise it for anyone else. I have the Vortech 155lph external pump and of course the vortech FMU, but the power seems to die away right at 4500rpm's. Don't know if it's fuel or not. Timing is good, but fuel would be my first guess.

[95mustanggt]

I would guess fuel too. 19# with a Vortech. You should upgrade.

[25thmustang]

DON'T go with bigger injectors.

I learned this myself. I had a 70mm Mass Air, and 24lb injectors a little while ago. With my combo and those parts I COULD NOT spin the tires at the track on 245/45/17 street tires. I removed the injectors and mass air, and gained tons of low end torque, enough to need drag radials. The stock parts will last till at least 300hp. If you upgrade you will gain on the top end but lose torque down low.

Don't go with them just yet in my opinion!