What type of cc injectors, for example 550 or 660 or 720cc, should I get for a t3/t4 set-up on a b16a sir2? I wanna run low 13s or high 12s....thanks

 

Try lookin at RC Engineering's website for their Online flow sheet it can calculate what injector is right for you. I think the 550's tuned properly should reach your Application though.

 

550 is big for his setup, he would be wasting injectors. Run 450's, much more suitable for your application.

Rob

 

for the price of the 450's and 550's, i would just get the 550's and call it a day. since you'll always want more power (assuming you will one day) go with 550's and tune with that. you'll have a little more room to work with, with 550's. although DSM 450's are really cheap...ranging from $40-$100.

 

waste of injectors? Any kind of real engine management should be able to drive the bigger injectors just as well as small injectors and why not have the room for growth?