Injector upgrade, 95% duty cycle LS3 injectors.

[hracing05]

I believe I have exceeded safe duty cycle for my stock ls3 injectors (95% dc). I am planning on stepping up to 408ci very soon. Previous combo was a 370ci. Using a truck pcm.

My question is...

What is the next step up injector, with injector data that is obtainable? Green tops?

I don't think I need a set of ID's with my new combo, and I definitely don't want to pay the price. I realize that the ID's are great, and come with injector data, but I just don't think they are needed in my case (not boosted). That is of course I can come up with a solution that doesn't cost as much. Defiantly do not want a "re-drilled" injector.

I have been searching this forum along with other's but can't seem to find a clear answer. Most people seem to run the LS3's.

Please help.

[Higgs Boson]

I would not go to a Ford injector, they suck at idle.

stick to a factory GM injector with good data you can pull or go with ID's. Nothing else is worth the hassle.

[hracing05]

I would not go to a Ford injector, they suck at idle.

stick to a factory GM injector with good data you can pull or go with ID's. Nothing else is worth the hassle.

Thanks for the reply. Since you recommend a GM injector, what's your opinion on the LS9 injectors? That's the only GM injector that I am aware of that is larger than the LS3. I have seen a lot of debating about the spray pattern difference between the two.

There's no doubting the ID's, they may be my only option for a larger injector with good data.

[Joshtuning]

I would do some ls9s there around 59 @ 58 psi if i remember right

[Russ K]

I would check the fuel pressure first, the LS3/LS7 injectors are good for 600 + HP on a non boosted engine

Russ Kemp

[ElecTech]

I would check the fuel pressure first, the LS3/LS7 injectors are good for 600 + HP on a non boosted engine

Russ Kemp

^^This.

[Joshtuning]

also what fuel are you using regular pump gas or e85 ?

[SultanHassanMasTuning]

LSA/LS9 injectors

but stock injectors should make 600HP easy at 58psi