redsvt1

im doing a turbo Lq4 6.0 and want to be around 600rwhp but dont know wich injectors size to use.

GMCtrk

iTrader: (27)

It depends on what fuel you will use?

For gas I would do Siemens 60s or 80s. 1000cc on E85.

TIM Z

iTrader: (12)

Are you going to be spraying meth also ?

redsvt1

only boost, and i will use gas.

GMCtrk

iTrader: (27)

60 lb/hr injectors will suffice

Alpinestar

iTrader: (7)

x2. A lot of people, including myself, run Siemens Deka 60lb EV1 injectors without any problems. If you go that route be sure to get the right sized o-rings and you will need EV1 connector adaptors as well. You will also have to space your fuel rails up a bit.

roland1

Or call fuelinjectorconnection and tell them what you have.

They sent me 60lb@43 psi injectors properly drilled spray pattern for LS engines.

Plug and play. Came with o rings on them already.

roland1

Also for 6.0L LQ9. They emailed me the injector data for the software I was using (HP tuners).

Was very easy dealing with them. Just told them what I was doing and they took care of the rest.

TIM Z

iTrader: (12)

I don't feel that 60lb injectors are going to be enough to support 600rwhp without help from meth .

If that's your plan then get a set sized for your application that will let you achieve that power goal and give you some room .

I have 60#ers but without the meth I don't think they would have cut it .

Also mine are Deatchwerks plug and play. I suggest talking to them and seeing what they have for setup . I'd rather have plug and play then re-wiring /spacing if it can be avoided.

Mangled03gmc

iTrader: (95)

60 lbrs will prob get you there, but for safe 80# would be my choice.