Ok so I'm rebuilding my engine and turboing it, I'm getting pretty close to finishing it, my horse power goals are 300ish to the wheels give or take a few is fine. My setup is bnr stage 1, rtek 2.1 and 9.7 to 1 rotors and a front mount, Im going to run 720cc primarys an I'm wondering if it would be fine to run 720 secondaries or should I go a little bigger?? Any help is appreciated this car is going to be daily driven.

 

Using Howard Coleman's fuel calculations, 2880cc (4x720cc injectors) is about enough for 309whp at 10:1 AFR and 85% duty cycle. So you'd have just enough fuel, but not much in the way of headroom. You could scale up a bit to something like 850cc secondaries, which is what I intend to run with a BNR stage 2 eventually.

https://www.rx7club.com/auxiliary-injection-173/feeding-turbo-rotary-horsepower-airflow-fuels-882676/

 

Hmm alright well I think I'm js gonna do 720cc for the secondaries because I don't need any headroom. All I want is 300ish thx for the help

 

FD's will do over 300whp with the factory 550/850