|Forum topic by lansinwd||posted 12-16-2015 08:32 PM||421 views||0 times favorited||3 replies|
12-16-2015 08:32 PM
I have an old Grizzly G1029 collector that I use with a 6” inlet (part available from Grizzly) and 6” main trunk pipe. I know that the exhaust\outlet port is actually only 5”, so I had been looking at increasing this as well. Speaking with a rep at Grizzly, even their brand new G1029Z2 still uses the same 5” exhaust port. This got me to wondering how important the size of the port really is. It would seem that it should be the same size as the inlet, but I haven’t been able to find any posts where people talk about modifying the exhaust\outlet port size, just the inlet (if it was not already 6”).
Is it worth the effort to change this, or does all of the concern about air velocity and CFM stop at the inlet?
-- Broken promises don't upset me. I just think, why did they believe me