[undy]

Spal's 3000 cfm fan is a "race only" fan, meaning open motor with a short operational life. I talked to Spal tech and they were emphatic about not using it for the street. I'd heard that Zirgo's 3300 cfm (I believe..) is extremely over rated. I lot of fan manufacturers post exagerated "free air" ratings. The rubber meets the road when you put it behind a radiator and the negative static pressure increases dramatically. The hi-flow fans usually fall on their face then. I wish all the manufacturers would publish the fan curves for their fans. Another thing to consider... Typically when you up the fan cfm you usually up the fan(S) amp draw too which might tax your existing electrical system, necessitating some electical work too.

I'm running Flex-a-lite's new shrouded 16" fan rated 3000 cfm plus. It has a nice black nylon shroud that was fairly easy to adapt to the LSC. I've never fed it with the proper voltage (10.9 VDC so far) so I can't make any claims to fame, or failure for that matter. This weekend I plan on installing my new 140 amp alternator and rewairing my charging/fan circuits. My 6 3/4" bottom pulley's supposed to be in today so that'll go on this weekend too along with the new 180 deg hi-flow t-stat and the water wetter. I'll post my results after..

Dave