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      11-12-2011, 01:49 PM   #33
Beedub
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Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

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Quote:
Originally Posted by O-cha View Post
NO AFAIK ASA blowers run a standard gear set, that's rotrex that has a sort of planetary variable gear. That quick spinup woosh thing is when the pulley clutch starts to grab and starts spinning the blower.
yeah my wording is wrong, i was wrong, they use a helical gearset which increases impellar speeds 1:15, i believe they spin up alot faster than my giant vortech does, CFM is alot lower however...... my main point is the "turbo" like sound these asa units make.

AFAIK, they have to be specified with the "clutch system" as an optional extra, looking at the gpower site the clutch is a payable option.

Always was a fan of the ESS CFR range, i really thought that was a solid kit tbh......
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