Injector size question N/A

[scroupious]

The items I have added to my 09 370Z

Bosch 650cc injectors
Specialty Z Ecutek tune with Seb running E85
Fast intentions Long tube header attached to Tomei exhaust all the way back
Ported intakes
Stillen Gen 3 long tube cold air intake
JWT C2 exhaust camshafts

My question is would I benefit by adding bigger injectors and adding Big Bore throttle bodies?

Just trying to build a very fun N/A Street car to mess with Mustangs, Camaro's and all the WRX's hahah. I have a 2016 Camaro SS that my son drives so we joke around a lot.

[JLarson]

My experience with ported tb's is that you'll see little, if any, in the way of gains with them, although if you want a somewhat choppy and uneven idle, go for it. As far as bigger injectors, what did your tuner say? Is fuel a restriction?

[scroupious]

I don't think the injectors are restricting. Maybe I just have the thoughts of bigger is better, from what I have researched it seems anything larger than 700cc injectors basically does not make much difference unless you Turbo or super charge the car.

I was just curious what thoughts were or if anyone noticed anything on an N/A engine.

thank you. I appreciate your input on both the throttle bodies and injectors.

[Whjaxn17]

Originally Posted by scroupious

The items I have added to my 09 370Z

Bosch 650cc injectors
Specialty Z Ecutek tune with Seb running E85
Fast intentions Long tube header attached to Tomei exhaust all the way back
Ported intakes
Stillen Gen 3 long tube cold air intake
JWT C2 exhaust camshafts

My question is would I benefit by adding bigger injectors and adding Big Bore throttle bodies?

Just trying to build a very fun N/A Street car to mess with Mustangs, Camaro's and all the WRX's hahah. I have a 2016 Camaro SS that my son drives so we joke around a lot.

Those 650s are plenty for NA. Most people, myself included, run the OEM 550cc GTR injectors for FBO NA builds on E85.