TwinTurbo.NET: Nissan 300ZX forum - The injectors are your limiter, too much boost = lean
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Subject The injectors are your limiter, too much boost = lean
     
Posted by 300zx90 (CO) on May 03, 2007 at 7:09 PM
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In Reply To Stock Turbos + Stock Injectors + Z1 Inter-Coolers = posted by Barry'z (NJ) on May 03, 2007 at 01:36 PM
     
Message Not to mention they're at their reliable limit in stock trim. As you raise the boost you shorten their life. 80%-85% duty cycle is max for a happy injector. Once you hit 100% that's it, no more fuel, so above that you just get leaner. Not to mention the flow rate of a static injector (100% duty cycle ie. always on) is very unsteady.

For steady, reliable fuel delivery you need to keep the duty cycle under 85%. What psi is that? Beats me, I skipped the stock stage altogether :) Borrow a consult tool and have someone monitor your max duty cycle as you bump up the boost level. When you see 85% that's your max boost.

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