6" port tophat design

[jgt1942]

I'm sure there are plans for a tophat with 6" ports but I cannot find them, The search function in the forum is too limiting for what I have been feeding it.

I plan to use a 5HP motor with a 16" impeller. Thus it will be necessary for me to build a housing for the motor and impeller as well as the tophat.

Several years ago I converted a Grizzly DC from a single-stage to a two-stage using using 4" ports on the tophat. It really worked great. I never got around to installing good filters on the Grizzly but still it was MUCH better than the original Grizziy.

[dwall174]

I plan to use a 5HP motor with a 16" impeller.

I don't think I have ever seen a Thien Baffle used with a motor larger than 3HP, most of the conversions I've seen use the Harbor Freight 2HP blower/motor.

This old post has some PDF links that may help you figure out what the diameter of the baffle should be.
https://www.jpthien.com/smf/index.php?topic=745.0

Here's another old post of a 6" inlet build.
https://www.jpthien.com/smf/index.php?topic=429.msg2187#msg2187

it will be necessary for me to build a housing for the motor and impeller as well as the tophat.

From what I understand that can be a little tricky since the motor's HP / Impeller / & Housing are normally designed as one unit. I'm sure there's some type of mathematical formula to figure it all out, but the biggest thing to watch out for is the motor drawing too many amps.

Doug