What's the step up ratio for a Vortech YSI???

[rencapri]

I'm trying to figure our impeller speed for our YSI but I don't know what the internal step up ratio is, Does anyone happen to know???. It is a passenger side YSI, so I don't know if it is the same as a driver side unit???


crank pulley size x Internal step up ratio X engine shift RPM
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Blower pulley size

[SwillRacer]

same as the driver side. 3.45

[rencapri]

Hey Scott thanks for the info.:) Congrats on your win in Florida and hope to see you guys by the Reading Pa race.