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2011-2014 Mustangs
Power-Adders
5.0......supercharger or turbo(s)?
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<blockquote data-quote="AmnDucky" data-source="post: 9870678" data-attributes="member: 106874"><p>That is too broad of a statement. You have turbo's, centrifugal superchargers, positive displacement roots style superchargers, and twin screw superchargers. Superchargers get better throttle response, especially off of the line. Centrifugals give you throttle response like a supercharger, but efficiencies like a turbo since they charge the air in the same basic way (impellers). Roots style blowers create the most heat, and will get heat soaked first (where the extra heat from more boost counteracts the extra boost and you see no gain in power). Twin screws dont heat up the air like a roots will, but still have that extra stress on the motor. If I remember correctly, KB says it takes about 70hp to spin their blowers. Turbo's make a crap ton of power, there is a reason so many drag cars use them. But they do best in the higher RPM's. I personally will be going with a screw type Whipple when I have the money. They advertise adiabatic efficiency on par with a turbo (emphasis on the "they advertise" part, I dont know), and I want the throttle response and super flat torque curve. </p><p></p><p>Oh, and I dont know if it applies to you. But turbos will always make the same boost at any altitude, they will forever spin faster until the BOV opens. Since a blower is run by a belt and its speeds are controlled, you will lose boost in higher altitudes.</p></blockquote><p></p>
[QUOTE="AmnDucky, post: 9870678, member: 106874"] That is too broad of a statement. You have turbo's, centrifugal superchargers, positive displacement roots style superchargers, and twin screw superchargers. Superchargers get better throttle response, especially off of the line. Centrifugals give you throttle response like a supercharger, but efficiencies like a turbo since they charge the air in the same basic way (impellers). Roots style blowers create the most heat, and will get heat soaked first (where the extra heat from more boost counteracts the extra boost and you see no gain in power). Twin screws dont heat up the air like a roots will, but still have that extra stress on the motor. If I remember correctly, KB says it takes about 70hp to spin their blowers. Turbo's make a crap ton of power, there is a reason so many drag cars use them. But they do best in the higher RPM's. I personally will be going with a screw type Whipple when I have the money. They advertise adiabatic efficiency on par with a turbo (emphasis on the "they advertise" part, I dont know), and I want the throttle response and super flat torque curve. Oh, and I dont know if it applies to you. But turbos will always make the same boost at any altitude, they will forever spin faster until the BOV opens. Since a blower is run by a belt and its speeds are controlled, you will lose boost in higher altitudes. [/QUOTE]
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5.0......supercharger or turbo(s)?
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