I am going to run a stage 4 bnr (approaching 400fwhp?) what injectors to use? 550prim 1600 secs?

 

Well if you ask Bryan he'll tell you that you need 4 720cc injectors and an upgraded pump(walbro). So the question is, are you going to go any farther? I mean with the full control of a haltech its better to have too much fuel available, ya know? I'd say 720cc primaries and 1200cc secondaries with a high-flow pump which should be good for most anything you throw at it.

 

Id say 4x720's or 4x1000's depending on future plans.

 

I have E6k and a BNR Stage 4 plus (as in, plus I did a little finish work to the turbo, he he.) Close to getting it running...

I went ahead and did ND 720s in the primary (s4 rail) and Bosch 1600?s in the 2ndaries w/ K2rd rail.

Its overkill (especially since its full AN -6 SS lines dual fed by Aeromotive regulator) since my Walbro is probably the weak link.

W/ E6K you set your injector staging by boost level, so 550 and 1600 seem to work fine for others- I just wanted NEW injectors and why not get 720s then?