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2nd Generation
Riddle me this, twin screw... Not your normal question
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<blockquote data-quote="AZ ERIK" data-source="post: 7388985" data-attributes="member: 27232"><p>Ok, so for 4 years I have asked myself this but never asked anyone that would know, even Art Whipple and Ed Martienez...</p><p></p><p>Why is a KB or a Whipple called a twin screw? Both the 2.6 kb and the 2.3 and 3.4 Whipples are not 'twins'. The Whipples have 1 3 'lobe' rotor and 1 5 'lobe' rotor, the 2.6 kb is 1 4 'lobe' and 1 6 'lobe' rotor. Where is the twin part in that?</p><p></p><p>Now on to the NHRA offical rule book, where it states, many times mind you, 'screw type superchargers prohibited'. So you mean to tell me I can't run a Whipple at the track? And yet I get through tech fine, and they can't be 'just ignoring' that 'little rule' as it's stated some 5 or more times in every power adder and class deffinition. </p><p></p><p>So the way I see it, someone is wrong, but who? Because nearly everyone here says the Eaton is a roots blower (3 lobe, identical profile) but that the 'twin screws' (which I think is only the kb 2.3) are king, I'm not sure about the rotor profile for the 2.3. </p><p></p><p>Can someone clarify?</p></blockquote><p></p>
[QUOTE="AZ ERIK, post: 7388985, member: 27232"] Ok, so for 4 years I have asked myself this but never asked anyone that would know, even Art Whipple and Ed Martienez... Why is a KB or a Whipple called a twin screw? Both the 2.6 kb and the 2.3 and 3.4 Whipples are not 'twins'. The Whipples have 1 3 'lobe' rotor and 1 5 'lobe' rotor, the 2.6 kb is 1 4 'lobe' and 1 6 'lobe' rotor. Where is the twin part in that? Now on to the NHRA offical rule book, where it states, many times mind you, 'screw type superchargers prohibited'. So you mean to tell me I can't run a Whipple at the track? And yet I get through tech fine, and they can't be 'just ignoring' that 'little rule' as it's stated some 5 or more times in every power adder and class deffinition. So the way I see it, someone is wrong, but who? Because nearly everyone here says the Eaton is a roots blower (3 lobe, identical profile) but that the 'twin screws' (which I think is only the kb 2.3) are king, I'm not sure about the rotor profile for the 2.3. Can someone clarify? [/QUOTE]
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Riddle me this, twin screw... Not your normal question
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