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Injector size question N/A

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

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Old 07-09-2020, 11:21 AM   #1 (permalink)
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Default Injector size question N/A

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.
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Old 07-09-2020, 12:20 PM   #2 (permalink)
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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?
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Old 07-09-2020, 02:45 PM   #3 (permalink)
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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.
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Old 07-10-2020, 09:10 AM   #4 (permalink)
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Quote:
Originally Posted by scroupious View Post
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.
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