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SVTPerformance's Chain of Restaurants
Tuning À la carte
Is Your Car Tuned Correctly?
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<blockquote data-quote="Don 95Vert" data-source="post: 12518999" data-attributes="member: 15121"><p><em>Remember fuel pressure will affect injectors.</em> True - on a return style fuel system, but on an electronic returnless system as in the examples, False.</p><p></p><p><em>Pressure will vary with fuel pump flow. </em> True, but the control system will maintain the same delta-P, i.e. pressure drop across the injectors. So as far as the injectors are concerned, pressure they see is the same as when it was driven out the factory doors.</p><p></p><p><em>Voltage also affects fuel pump flow</em>. True, but the control system will maintain the same delta-P.</p><p></p><p><em>Boost pressure changes fuel pump flow since fuel pressure needs to be raised at least 1 psi for 1 pound of boost if you want injector to stay consistent.</em> True, but the control system will maintain the same delta-P. We are not talking Fox body with a return fuel system here. </p><p></p><p><em>Higher the pump pressure less flow</em> True, but the control system will maintain the same delta-P.</p><p></p><p><em>Fuel system are not consistent</em> Not true. If calibrated properly, yes, in fact delta-P will stay rock solid.</p><p></p><p>Didn't I already say all that? Don't mind repeating myself so everyone has a good grasp of what goes on! Education is the key to understanding!</p><p></p><p>Hope this clears up confusion.</p><p></p><p>Don</p></blockquote><p></p>
[QUOTE="Don 95Vert, post: 12518999, member: 15121"] [I]Remember fuel pressure will affect injectors.[/I] True - on a return style fuel system, but on an electronic returnless system as in the examples, False. [I]Pressure will vary with fuel pump flow. [/I] True, but the control system will maintain the same delta-P, i.e. pressure drop across the injectors. So as far as the injectors are concerned, pressure they see is the same as when it was driven out the factory doors. [I]Voltage also affects fuel pump flow[/I]. True, but the control system will maintain the same delta-P. [I]Boost pressure changes fuel pump flow since fuel pressure needs to be raised at least 1 psi for 1 pound of boost if you want injector to stay consistent.[/I] True, but the control system will maintain the same delta-P. We are not talking Fox body with a return fuel system here. [I]Higher the pump pressure less flow[/I] True, but the control system will maintain the same delta-P. [I]Fuel system are not consistent[/I] Not true. If calibrated properly, yes, in fact delta-P will stay rock solid. Didn't I already say all that? Don't mind repeating myself so everyone has a good grasp of what goes on! Education is the key to understanding! Hope this clears up confusion. Don [/QUOTE]
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Is Your Car Tuned Correctly?
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