[lazer96gt]

going to put on the 12lb pulley and was wondering if it'll run on 93 octane. tuned of course.

[Stang13]

If your still using the 30lb injectors you might need to upgrade! I'm not sure how much hp they can support. I have 42lb with 10psi. As for 93 octane I think you'll be alright! Shoot Lethal Performance a PM, they would know much better than I would!

[lazer96gt]

I was going to drop it off there today to get tuned but they're closed. I'll call them tomorrow. the kenne bell setup is designed to run @12psi with the stock 24lb injectors with the fmu and boost-a-pump so I think I'll be alright.

[Stang13]

Originally Posted by lazer96gt

I was going to drop it off there today to get tuned but they're closed. I'll call them tomorrow. the kenne bell setup is designed to run @12psi with the stock 24lb injectors with the fmu and boost-a-pump so I think I'll be alright.

This is true, but for the future you might want to keep in mind that using an FMU with smaller injectors will wera them out quicker and lack of fuel as I'm sure you know is not something you want with a blower! Good luck dude, I'd be excited.......more boost is always a good thing!

[lazer96gt]

I don't use the fmu. my fuel pump w/the fmu produces over 100lbs fuel pressure after the regulator so Murillo disconnected it. I don't even need to use the boost-a-pump.

[Stang13]

Originally Posted by lazer96gt

I don't use the fmu. my fuel pump w/the fmu produces over 100lbs fuel pressure after the regulator so Murillo disconnected it. I don't even need to use the boost-a-pump.

Sounds like your good to go then dude, Mike wouldn't have disconnected it if there was going to be an issue!

[lazer96gt]

12lb pulley on the way from KB. hopefully it'll get here friday or saturday so I can drop it off on tuesday. can't wait!

[txlen]

If i were you i'd go ahead and do the 42lb inj's.....ya never wanna go lean in a blown car.....

[YZF Voltage]

rich is always better than lean. worth the money for bigger injectors imo.

[lazer96gt]

ok quick question though. If I install those 42lb injectors and the pulley, will I be able to drive the car to get tuned?

[lazer96gt]

also would I be ok on the 30lb going with a 9psi pulley?

[Mr.SVT]

Why wouldn't it run with those two modifications...

Might run like shit..

[lazer96gt]

well I was told that I can run safely on 12psi, but I of course would not be making the most of that 12psi with the 30#. so, I'm just going to re-tune at 7psi, and do the injectors later.

[FoxBodyNut]

what kind of power are you expecting on 12psi?

[lazer96gt]

I was told I could put down 400whp safely on 12psi with the current setup, which is right in line with what KB says the car will make on a totally stock setup other than the blower kit. I'd be fine with that, but I know at 12psi I would really have 425+ with my current setup if I had the 42 pound injectors and the tune was maxed for that application. I was told the 30# would be at 80% duty cycle which in my mind doesn't leave much room for improvement and will shorten the life of my injectors. If I have enough time before they can actually take my car in, I might order a 9psi pulley and tune it with that until I buy the 42# injectors.

[txlen]

if yer gonna tune it anyway why not do it with the 42's ??...then when ya up the boost it's a little easier to tune??..thats what i'd do if it were mine...

[lazer96gt]

I guess you're right Len. what brand do you recomend?

[FoxBodyNut]

here's a helpful fuel injector chart when considering forced induction and upping fuel pressure at the rails with an FMU:

MotorSports Digest

I dont know how different it will be leaving the stock fuel pressure but tuning up the duty cycle... thats something i dont have much experience with. either way, thought this chart would help.

[txlen]

jus used the good 'ol tried and proven ford green tops...they work fine...

[lazer96gt]

stock S/C cobra injectors right Len?