Injector size?

[WayFast84]

I'm trying to figure out what injector sizes would be good for my build and which way to go.

Here is the basics
226/234
226 ai 243's
Full Bolt ons
Ported fast 102/102
ractronix fuel pump kit

That is for now but If I ever go through the short block it's getting a medium dry shot and I don't want to buy things more than once. Thanks guys.

[LTb1ow]

Dry shots are lame.

42# green top SVOs

[V]

When buying injectors, keep in mind at which Fuel Pressure PSI they are rated at.

Theres lt1 FP and LS1 FP which are different.(43.5psi /58psi)

...so an injector that is rated at say.. 30lb/hr at 43.5psi is equal to 34.64lb/hr at 58 psi


I had Racetronix 37# ones (43.5psi rated) and they worked out to about 42#@58psi in my old LS6 with a big cam and almost all bolt ons, and my duty cycle on them were fine.

[S.J.SLEEPER]

42-46 rated will do you fine. I would go with 46's to have the fuel for future mods above what your list is.

[WayFast84]

So does anyone know where I can get the best deal?

[NJ Torque]

Have the stockers resized. . .

[KirkEvil]

Get the FAST 36lb/hr injectors, they are thin body and 42lb/hr at ls1 fuel pressure. You will need thin body injectors to fit onto a FAST 102 intake.

[S.J.SLEEPER]

seimens injectors for aftermarket, they will be the cheapest & most reliable. Make sure you purchase with correct connector.

[WayFast84]

I forgot about fuel rails, are their other options then the ones by fast? Thanks guys.

[V]

for that hp range i think youll be ok with the stock rails.

[1984camaroz28]

Have the stockers resized. . .

There junk ive done back to back dyno testing....

[1984camaroz28]

I would do a set of 42lbs there around 48 @ 58psi gives you room to grow. Don't waste your time on a dry shot.

[WayFast84]

What about these? http://fuelinjectorconnection.com/shop/index.php?_a=viewProd&productId=233

http://fuelinjectorconnection.com/shop/index.php?_a=viewProd&productId=203

http://fuelinjectorconnection.com/shop/index.php?_a=viewProd&productId=101

http://fuelinjectorconnection.com/shop/index.php?_a=viewProd&productId=179

I'm on a really tight budget but don't want to buy crap or buy twice. Thoughts?

Also I had to go with an ls6 intake could I get away with maxing the stock injectors out for a while? I'll be upgrading the fuel pump asap...

[sweetbmxrider]

The first two are for cars that make a little bit of power. You can run stock injectors forever, you just can't go WOT. You would have to be retuned when you get new injectors.

[WayFast84]

Yeah..I figured they would be big.. I just sent them an email asking for a recommendation..