Help with Injectors

[gcwh02]

I have just put on my 24 lb's and 76mm MAF and it seems a little boggy, im almost positive it is because i put the injectors on way too early, do you think that if I add a mild cam and maybe some rockers that I will not be bogging anymore and be getting the use out of my injectors. Help me thanks

 

[ninety15.0]

Well the 24's are definately big...i wouldnt think it would cause any big problems. What exactly do u mean by a little boggy? what are the conditions and symptoms? have you pulled codes?

 

[RacEoHolic330]

whats your fuel pressure at? Whats the reason for putting in the bigger injectors?

 

[Paul Perreca]

did you notice your car getting worse on gas after your install??

 

[Bottomlesspit]

I would listen to the above questions and try to answer them truthfully. Was there a good reason to add 24# injectors or did it just seem like a good thing to do for more power, another add-on, or just convenient at the time???
Too many folks add big injectors a bit too soon, thinking they can use the extra gas or that they might add horsepower. The 19s can run you into the 300hp range, but that level can start pushing them a bit hard. Your combo is not there yet, so you are probably enrichening the engine too much.
There are 2 ways to do it: You can use the 24s and try and back off the pressure, or you can use the 19s and add pressure using an adjustable fuel pressure regulator. The 19s have their limit for upping the pressure, but you are not near that yet. Backing off the 24s can work but some problems "can" develop...not all cars, but many. It has a lot to do with the fuel spray pattern. Higher pressure can help atomize the fuel spray for a good, clean burn. Backing off the pressure on the 24s can lead to a poorer atomization of the fuel, and probably leaving a glut of fuel to create the bogging as you describe.
If possible I would put the 19s back in, up the pressure a bit, and save those 24s until you can get some heads, nitros, or whatever you do to increase power level.
The 24s are probably not hurting anything, but they sure not helping at this stage.
At least use an afpr and back off the pressure some on those 24s.
Good luck,
Ken

 

[Black 93 Fox]

Did you change the maf tube for 24's?

 

[gcwh02]

i felt that i was already getting a new MAF with the TB and Intake i ordered so i might as well get it calibrated for 24's and throw them in, i know now that my engine could squeeze out 19's for a little more but can i get away with throwing in a mild cam, some rockers, better water pump, and keeping the 24's?? thanks for all your help guys, i appreciate it

 

[dstanggt50]

When I swapped my 19's for 24's, I had gt-40 intake, shorty's, off road x, flows, pulley's, I had to drop my fp just a little. I had it at 42 and lowered to 39. I didn't really think there was any lagging or anything down low. Did you add the inj w/the t/b and the intake install?? If not, maybe play with the fp, if you added everything together, maybe double chk the install, lower fp, make sure no codes, vacuum leaks, ect..

 

[Paul Perreca]

If you installed the intake and the injectors at the same time, theres a chance that its not the injectors causing your bogging. Maybe you didn't connect all the vaccuum lines correctly - this is a very very common mistake ... Lower the FP to 38 or 39 and if its still bogging, check all your vaccuum lines to make sure they are where their supposed to go -

 

[RsStanG1987]

If you installed the intake and the injectors at the same time, theres a chance that its not the injectors causing your bogging. Maybe you didn't connect all the vaccuum lines correctly - this is a very very common mistake ... Lower the FP to 38 or 39 and if its still bogging, check all your vaccuum lines to make sure they are where their supposed to go -

Where did you tread that he installed the intake. I diddnt see it. Or do you mean when he removed the upper to get to the injectors?