HotRodder

I have a '98 TA that has a stock bottom end w/ common bolt on ugrades, CAI & LT's w/ cat back and while replacinging the clutch I've decide to go ahead and install the LS6 stage II heads & intake and mild 226 cam pkg I've been sitting on for quite a while. While I'm at it I was wondering if installing a fresh set of larger injectors would be a worthwhile investment for this and future upgrades (LS3 short block)? Like title says are larger injectors (36#) a good choice at this time or would it be a waste of money & fuel with little to be gained. Thanks for any suggestions

4doortypels

iTrader: (39)

personally i would use LS3 stock injectors... should be easy to tune...and im sure they will support 600hp plus... if you ever look at the g8 2300 for the gxps, they dont include injectors... so i believe ls3s should suffice in 99 percent of all motor builds

99Bluz28

iTrader: (35)

My understanding is when you up to +85% duty cycle the injectors start losing the ability meter fuel as accurately. Get at least 36's, if you have any possibility thought of getting more HP out of your engine then get a set of 42's.

FICINJECTORS

iTrader: (30)

run a bosch ls1 style 36lb at 43.5 psi.stay with this type of injector do to your ecu and harness.also a bosch injector can run all day at 90%.this a myth that you can't run an injector over 85%.we are up the street from vengeance racing great company these guys run daily driven street cars all day at 85% to 90%.

ZL1Killa

iTrader: (17)

I wouldn't say that it is a myth, it is just not advisable, as what you want to ensure is that you have proper fuel delivery. The higher you go in the duty cycle the more a risk of possibly going static and possibly getting improper fueling that is the problem. The reliability in the higher duty cycles is dependent on manufacturing & etc as it always is.

The issue is getting improper fueling. If you have an injector that is giving you consistent fuel delivery, then why not, sure.

ZL1Killa

iTrader: (17)

From RCENG:
"Most injectors will operate up to 80-85% duty cycle without any issues. Exceeding the maximum duty cycle will basically cause the injector to go static. The transition from a dynamic state to a static one will cause the injector to become unstable for a brief moment. Typically, the injector pulse width will operate past this "dead zone" rather quickly and go wide open. "

HoLLo

iTrader: (17)

What are the LS3 injectors rated at?