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General Chat (Vincent Related)
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<blockquote data-quote="Kansas Bad Man" data-source="post: 51293" data-attributes="member: 778"><p>Answering Greg's question, what kind of boost do I run? The blower is a roots , running an overdrive of 1.65 to 1. the blower is of a Wiend manufacture</p><p>originally made for a 350 Chevy street racer having a displacement of 160 ci of air for each 360 degree of rotation . The engine has a displacement of 3000 cc or a 180 ci . The compression ratio is 6 1/2 to one and at 16 lb boost the effective compression ratio is about 15 to 1. A Vincent twin without to much effort, makes about 1 HP per ci or 60 HP. The liner is 180 ci, assuming it has the same volumetric efficiency as a wormed up Vincent , so 180 HP x 20% hp increase running alcohol is 216 hp, the 16 lb boost more then doubles the HP which accounts for the over 500 HP dyno readings. I hope that helps you Greg to understand some of the nittygrittys of the liner.</p><p></p><p>Cheers</p><p></p><p>Max</p><p></p><p>excuse the sp</p></blockquote><p></p>
[QUOTE="Kansas Bad Man, post: 51293, member: 778"] Answering Greg's question, what kind of boost do I run? The blower is a roots , running an overdrive of 1.65 to 1. the blower is of a Wiend manufacture originally made for a 350 Chevy street racer having a displacement of 160 ci of air for each 360 degree of rotation . The engine has a displacement of 3000 cc or a 180 ci . The compression ratio is 6 1/2 to one and at 16 lb boost the effective compression ratio is about 15 to 1. A Vincent twin without to much effort, makes about 1 HP per ci or 60 HP. The liner is 180 ci, assuming it has the same volumetric efficiency as a wormed up Vincent , so 180 HP x 20% hp increase running alcohol is 216 hp, the 16 lb boost more then doubles the HP which accounts for the over 500 HP dyno readings. I hope that helps you Greg to understand some of the nittygrittys of the liner. Cheers Max excuse the sp [/QUOTE]
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