Why does car run hotter with A/C on?

Does anybody know where I can get a 61/2"
pusher fan for my Mocal Loop Replacement
Kit ?? BAT in Florida has them on back-
order,I've read in pervious posts about a
Spal (?) The post I read gave a web address
but when I tried to link to it I got server
not found,My Kit is due on Wednesday,need
fan bad !... oh yea... I also need screen/
rock guard, what year car did Porsche start
using fender mounted coolers and how big
were they, I've got a 19 row, will a Porsche
guard fit ? I also found Warren's post on how
to wire up the fan ! If I just had a fan.

You can get the parts from WWW.Racerpartswholesale.com

Just as a thought.. YOu might check out my earlier posts on cooling fans.
Cooler Carrera dated 4/11/00 and Fan Update dated 6/12/00.
I have had these fans installed for about 3 months now and can sit in 95deg traffic all day with the AC on and never heat up.

Thanks, Scott !!
The Spal is a couple of bucks cheaper and I
can get one NOW, I've read your posts and
am using all the info I've obtained to do
this myself! Thanks again.
oh, yea.... I did read a post that the spal
was noiser than the Mocal,any thoughts on
that?

[This message has been edited by chuckr (edited 07-03-2000).]