Hello All,

I am thinking of doing some bolt-on modifications to a 2003 Z06 and have some questions about injector duity cycle. The target is 400RWHP with a very conservative tune.

What injector would be reccomended for a safe setup? Are the stock units up to the task?

Please keep in mind that I want this to be conservative, the car is babied but I want it to be built so that I could take it to a roadcourse and have no problems. I want stock reliability out of a 400RWHP setup, or I will just leave it stock. Its a better car than I am a driver anyway.

Thanks,
-Nick

 

stock injectors will be fine...

 

Stock or if you are worried, get a set of GTP white 36lb ones. The tables are available for them.

 

Thanks Wait4Me~ I was concerned that 400whp was on the limit of the duity cycle for our stock injectors and would not want to risk that in a roadcourse environment. How difficult is it to tune in the new injectors? Nothing scares me more than some hack screwing up the tune in the car just so I could get 50 more horsepower out a car that is already very capable.

I have played the tuning game with a respected vendor (previous car) before and was not pleased with the outcome at all.

Thanks!
-Nick

 

the data is all available for that injector, load the data, data log the fuel trims, they should real close, edit from there if need be...

 

I have a cam only 99 ls1 with 03 vette injectors and I make roughly 400rwhp with them. They usually run around 88% at wot.

 

Thanks All!

 

ford red tops are what i run in my car. i do need to check duty cycle but they are a 36lb injector on gm fuel pressure