Just thought this might be useful some day. Apologies if repost.
Shroud(326.7/388.8) vs. no shroud (318.6/388.1):
View: https://www.youtube.com/watch?v=Os_Hna9DZa8
From the Engine masters cooling fan shoot out video:
Test engine: 350 chevy
Engine dyno
No fan: 349/406.9
Clutch Fan: 335/400
Plastic flex fan: 325.1/388.3
Aluminum Fan: 328.7/394.9
Fixed steel OEM fan: 318.6/388
Shroud(326.7/388.8) vs. no shroud (318.6/388.1):
View: https://www.youtube.com/watch?v=Os_Hna9DZa8
From the Engine masters cooling fan shoot out video:
Test engine: 350 chevy
Engine dyno
No fan: 349/406.9
Clutch Fan: 335/400
Plastic flex fan: 325.1/388.3
Aluminum Fan: 328.7/394.9
Fixed steel OEM fan: 318.6/388
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