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Old 12-28-2012, 01:15 AM
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Originally Posted by 1Gary View Post
Hey,wait a minute.You said a 177 doesn't require vane service,But you said it is a roots style blower.I thought all roots have Teflon strips.Kind of confused on that point.
I hate to say it but it seems you are confused about a whole lot of this. and more.

The 177 is not stripped. Most roots blowers are not stripped.

Stripping the rotors is a way to recover-restore the blower case to rotor clearance on a rebuilt 671 blower. That re uses the remachined case and rotors.
Usually only used on a competition purpose 671-8-71 blower.
I suggest you download and read the technical-instruction manual on Roots superchargers, on the Holley/Weiand site.
The hows and whys are covered.
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