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Blower ratio

To: "LSR list" <land-speed@autox.team.net>
Subject: Blower ratio
From: "atrav" <atrav@copper.net>
Date: Sat, 15 Apr 2006 23:06:42 -0400
What is the process to determine the pulley ratio to run with a regular roots 
type blower?

Suppose a 1000cc engine, a blower that claims 600cc of air will be passed per 
revolution, and say
somewhere between 5 to 10psi for the pressure is the goal (under 6K max engine 
RPM if that matters).
Would a simple 2:1 ratio be a good place to start?
TIA,
-Aron-




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