clutch drive fans

yea i agree you make more power without the fan the car craft book did a test that showed power at diff. rpm and it ended with i think was 8 at the rear wheels thats on a race mustang..but i think it depends on the app.i hope that its 15 at the rear i can use it.hahahaha.and mopar did the page on the ther. controled fan that said up to 15 with the fan not on the soild mount fan ..but as said i hope that its 15 + some with the water pump..