Muskrat
Well-known member
So I'm planning for my EvoIII 16G Setup, and have run into a couple of questions.
My original plan was to target about 350 bHp running about 20 psi boost pressure.
My planned Mods were:
Full 2.5" turbo back exhaust
MBC
ETS Intercooler kit
Rewired Walboro 190 fuel pump
650 injectors
EvoIII 16G turbo w/ 2g Manifold and O2 Housing
DSM Link and a wide-band to tune
I was running the numbers using estimates for Peak VE = .95 Intake Temp = 130*F, BSFC = .6 and assuming an AFR = 12.
With these numbers I reach my goal, with a Airflow of about 550 cfm and a Pressure Ratio of about 2.7.
The problem comes when sizing my injectors.
I keep reading about people running an EvoIII 16G with 550 injectors. This must be running stock, or maybe 15 psi boost levels?
I have a Walboro 190 fuel pump which I was planning to use. Based on flow data gathered by RRE The max injector size this can support with 20 psi boost is 660 cc/min.
Based on my injector calculations I should be running 690 injectors to be at 80% duty cycle, which my fuel pump can't support. Running 650's I'd be at about 85% duty cycle.
What my interpretation for all this is that I can achieve my goals with these parts, but I'd be just about maxing out my fuel system, leaving no room for error.
I guess my question is what are other people running with similar goals and set-up for their fuel systems? Should I be rethinking my set-up?
My original plan was to target about 350 bHp running about 20 psi boost pressure.
My planned Mods were:
Full 2.5" turbo back exhaust
MBC
ETS Intercooler kit
Rewired Walboro 190 fuel pump
650 injectors
EvoIII 16G turbo w/ 2g Manifold and O2 Housing
DSM Link and a wide-band to tune
I was running the numbers using estimates for Peak VE = .95 Intake Temp = 130*F, BSFC = .6 and assuming an AFR = 12.
With these numbers I reach my goal, with a Airflow of about 550 cfm and a Pressure Ratio of about 2.7.
The problem comes when sizing my injectors.
I keep reading about people running an EvoIII 16G with 550 injectors. This must be running stock, or maybe 15 psi boost levels?
I have a Walboro 190 fuel pump which I was planning to use. Based on flow data gathered by RRE The max injector size this can support with 20 psi boost is 660 cc/min.
Based on my injector calculations I should be running 690 injectors to be at 80% duty cycle, which my fuel pump can't support. Running 650's I'd be at about 85% duty cycle.
What my interpretation for all this is that I can achieve my goals with these parts, but I'd be just about maxing out my fuel system, leaving no room for error.
I guess my question is what are other people running with similar goals and set-up for their fuel systems? Should I be rethinking my set-up?