How much more air does the stock clutch fan move vs the ls1 fans?

I tow quite a bit and its seems since I put the ls1 fans on, my engine temp likes to creep on long hill climbs with the trailer. I am going to go back the clutch fan to test it out, just curious if anyone knows. It might be wortht the upgrade to the bigger radiator and 05 efans..........?

Thanks

 

stock clutch flows better over 1000rpm i think only if you still ahve the fan shroud tho

i personally would get the 34" radiator and try it with the ls1 fans it's all about cooling capacity, i dunno where in CA that is but if it dosent get very cold you can run more water than antifreeze and you wil notice a difference

water cools better and green antifreeze works better over pink antifreeze