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The Terminator
Engine/Tuning
Gauge questions, Fuel Pressure & A/F Gauge
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<blockquote data-quote="01yellercobra" data-source="post: 15988294" data-attributes="member: 35549"><p>The Speedhut gauge should be reading actual fuel pressure. So as you give it throttle the pressure should raise up accordingly. The Aeroforce is reading the pressure drop across the injectors. Basically it's the difference between the fuel pressure at the inlet of the injectors and the outlet. It should always be around 39-40psi.</p><p></p><p>That A/F sounds really wide. I aim for 11.0-11.5 under boost. My A/F at idle and part throttle swings from low 14's to high 15's. It's never going to settle at one number as the computer is using the O2's to adjust the A/F at part throttle.</p></blockquote><p></p>
[QUOTE="01yellercobra, post: 15988294, member: 35549"] The Speedhut gauge should be reading actual fuel pressure. So as you give it throttle the pressure should raise up accordingly. The Aeroforce is reading the pressure drop across the injectors. Basically it's the difference between the fuel pressure at the inlet of the injectors and the outlet. It should always be around 39-40psi. That A/F sounds really wide. I aim for 11.0-11.5 under boost. My A/F at idle and part throttle swings from low 14's to high 15's. It's never going to settle at one number as the computer is using the O2's to adjust the A/F at part throttle. [/QUOTE]
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Gauge questions, Fuel Pressure & A/F Gauge
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