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Originally Posted by nlzmo400r
I think what RBS14 was getting at, is that usually a car with injectors that properly match the turbo makes the car idle/run better. Using injectors at 90percent duty cycle is better than running bigger injectors at only 55percent duty cycle. Thats all he's saying, and technically he's right, however the fact that you have the power FC and hte ability to tune air/fuel and timing, all but eliminates the problem with injectors that are 'too large for the turbo'. Nice setup either way, and what a powerband for a t28
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Sizing an injector based on the projected power output has nothing to do with how the car idles/runs. It doesn't matter what size they are; if the tuning is not on par, no injector will make a difference in the idle or driveability. You can tune the car on 370s or 860s and make it run great, or like garbage depending how you tune it. The only difference is, my engine has enough fuel to support roughly 400 hp provided I have a turbo that can flow enough air. I like having plenty of fuel on tap no matter how much power I plan to make. It gives me the opportunity to run the A/F rich enough under boost to cool the combustion temps, keeping the tune plenty safe, which yeilds reliable hp. This to me is very important particularly with stock bottom ends. I disagree that running an injector at 90% duty cycle is better than 55%. Technically RBS14 is not right. Running them that high runs of risk of the injectors going static, locking up, and leaning out in that particular cylinder. Not what I want happening. Thanks for the compliment about the setup.