If you have the computer tuned for the new injectors they won't use any more fuel than the stock injectors would at idle or cruise.

 

If you get a pcm from a junkyard out of the same year/engine/transmission type camaro, you can send that off to get flashed while you're still driving your car and then swap for the hot pcm when you install the rest of your new fuel system. Ian at madz28 is a good guy and very knowledgable. If you do get a tune, tell the tuner what psi your new injectors were rated at. If not, they'll use stock gm psi settings and that will unduly stress the SVO injectors if you end up getting them. Also you will need an adjustable fpr if you use the Ford injectors, and I'd recommend a fuel pressure guage also. With a nitrous application, you're asking more from your fuel system than a NA motor, so that new fuel pump might be a good idea. Later on down the road, you might be sending more juice at your engine than you're stock fuel pump can keep up with. Also, if you spray regularly, you might want to look into a nitrous cam. The part number I gave you earlier on the fittings was wrong, they're 5800's, not 5808's. I agree that you don't need to worry about "hot-wiring" your fuel pump until you upgrade to an aftermarket piece.

Two sets of 5800 fittings= $80
Lines, fittings, and a new filter= about $100
New SVO injectors and an adjustable fpr= about $300
Junkyard PCM and a tune= about $150

So for much less than $700, plu your homework, you could have a fuel system that you'll be more than happy with for years to come. Add in the fuel pump and a lunati nitrous grind, you've finished off the whole shebang for less than $1500 and you can spray the way to horsepower heaven ( there ar 36# SVO injectors for about the same price, remember). It's up to you if it's worth the money, but remember; every part of your combo will have an impact on your overall performance. Build the BEST combo you can, not necessarily the most expensive.

 

Im not planning on spraying regularly- only when i have somethin i cant keep up with. lol

How much does MadZ28 charge for a PCM tune? i know that PCM for less is like $200 initialy and then $50 per update after that..

 

It will not "stress" the injectors. The result will be that the injector flow constant that is programmed into the PCM will be about 5% lower than the SVO's will actually flow at the stock LT1 pressure of 43.5psi. The long term fuel corrections will take care of the excess flow ni closed loop, but the engine will run 5% rich at WOT. But it will not "stress" the injectors.
No adjustable fuel pressure regulator required. The tuner knows the SVO's flow 5% extra at 43.5psi, so he increases the flow constant in the PCM. No need to diddle with the fuel pressure.

To get yourself in the ballpark on injector size, simply multiply you NA flywheel HP by 0.07..... e.g. 450 flywheelHP x 0.07 = 31.5#/HR. That assumes a decent (efficient) tune and no more than 85% duty cycle. If you want to allow for future mods, add 10-20% to the flywheel HP to calculate size.... e.g. 450 flywheelHP x 1.20 = 540HP x 0.07 = 37.8#/HR.

 

Well, According to this- i should get a set of 38# injectors then. I feel that my car is on the edge of its maximum on the stock fuel system. I mean it goes, and it goes good. but i think that new injectors, fuel pump and a tune would net me possibly 400hp at the rear wheels.. i could be wrong and i possibly am, but i know that the motor has alot of potential left in it.