997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Quick Q - Bigger Injectors

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Old Feb 22, 2018 | 04:40 AM
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Quick Q - Bigger Injectors

Did some searching but wasn't able to find a conclusive answer.

Currently have stock turbos and a softronic tune, seems like the stock injectors are able to keep up with the boost increase, but just want to make sure that I am not hurting my engine by letting it run more "lean" as the stock injectors may be struggling to keep up? Would it be helpful to have larger aftermarket fuel injectors? Would this help with the linearity of the power, especially at higher RPMs?

Thanks
B
 
Old Feb 22, 2018 | 07:48 AM
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Someone correct me if I'm wrong, but running some logs or dyno pulls and reading the air/fuel ratios is the proper way to check if you're running safe levels of fuel pressure
 
Old Feb 22, 2018 | 07:46 PM
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Is this on a 997.1 or 997.2? I would suggest logging injector duty cycle, air fuel ratio, and fuel pressure.
 
Old Feb 23, 2018 | 02:05 PM
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Originally Posted by Bargo
Did some searching but wasn't able to find a conclusive answer.

Currently have stock turbos and a softronic tune, seems like the stock injectors are able to keep up with the boost increase, but just want to make sure that I am not hurting my engine by letting it run more "lean" as the stock injectors may be struggling to keep up? Would it be helpful to have larger aftermarket fuel injectors? Would this help with the linearity of the power, especially at higher RPMs?

Thanks
B

Hello all our files made for the stock Turbos from the 996TT,997.1TT 997.2TT and so on do not require different injectors. Different injectors are used when changing the turbos or increasing the boost pressures outside of the stock tuned setting and so on. You can give us a call should you have any further questions.


Best,
Scott
 
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Old Feb 24, 2018 | 09:36 AM
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Thanks for the reply Scott. Had another question as well, I will PM you!
 
Old Feb 25, 2018 | 09:43 AM
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I would suggest logging injector duty cycle
 
Old Feb 27, 2018 | 07:32 AM
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Originally Posted by hichamaziz
I would suggest logging injector duty cycle
the one sure way to know if you are out of injector.
 
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Old Feb 28, 2018 | 04:10 AM
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Originally Posted by hichamaziz
I would suggest logging injector duty cycle
Yup...injector duty cycle. Try to keep it under 85-90% WOT so you have a little headroom.
 
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