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SVT Shelby GT500
VMP TVS or 2.9 Whipple...?
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<blockquote data-quote="Nathan'sTsi" data-source="post: 12106295" data-attributes="member: 14187"><p>No offense, but that is a rediculous arguemnt. Do you really believe there nobody in the aftermarket makes anything better than what comes on the car from the factory?</p><p></p><p>The TVS will make more power on the low end because of the boost curves. Due to the rotor profile of twin screws, boost typically ramps up more on the big end. The twin scerews will make more power on the big end given the same psi, mainly because of the lower parasitic drag. With a 2.6" upper and 10% lower you are spinning the TVS a lot harder to make the same boost as a kenne bell or whipple with a 3" upper only. It takes power to to do this.</p><p></p><p>The questions are, or should be: </p><p>1) Is the 50 lb/ft at the bottom of the tack worth losing the 20-30whp up top.</p><p>and</p><p>2) Do you want your race gas tune to pick up ~40whp with the TVS, or over 100+whp with with a twin screw and a pulley swap? Same goes for e85 for the people fortunate enough to have it.</p><p></p><p>Justin's TVS car makes good power, but it is running cams and race gas. The twin screws will make more power than that just by switching to race gas and swapping pullies.</p><p></p><p>The cost of the TVS makes it more appealing to most. Not to mention it becomes hard to use all of this power on the street anyways.</p></blockquote><p></p>
[QUOTE="Nathan'sTsi, post: 12106295, member: 14187"] No offense, but that is a rediculous arguemnt. Do you really believe there nobody in the aftermarket makes anything better than what comes on the car from the factory? The TVS will make more power on the low end because of the boost curves. Due to the rotor profile of twin screws, boost typically ramps up more on the big end. The twin scerews will make more power on the big end given the same psi, mainly because of the lower parasitic drag. With a 2.6" upper and 10% lower you are spinning the TVS a lot harder to make the same boost as a kenne bell or whipple with a 3" upper only. It takes power to to do this. The questions are, or should be: 1) Is the 50 lb/ft at the bottom of the tack worth losing the 20-30whp up top. and 2) Do you want your race gas tune to pick up ~40whp with the TVS, or over 100+whp with with a twin screw and a pulley swap? Same goes for e85 for the people fortunate enough to have it. Justin's TVS car makes good power, but it is running cams and race gas. The twin screws will make more power than that just by switching to race gas and swapping pullies. The cost of the TVS makes it more appealing to most. Not to mention it becomes hard to use all of this power on the street anyways. [/QUOTE]
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VMP TVS or 2.9 Whipple...?
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