I have a 1990 IROC. vert. A few years ago I added this kit to my Passenger side fan only;
http://www.summitracing.com/parts/PRF-30104/?rtype=1
It has worked great for me. My question is that I know the left side fan only comes on when the AC is running, but I was thinking in the summer months up here in the mountains I would like to tie both fans to come on at 190+/- degrees (I can adjust it). The relay and breaker is only rated for 20 amps, I don't think it would be too much draw to tie in both, what do you think? I don't think the A/C will be effected either way...your thoughts? Thanks

 

i tested a set of stock dual fans once and found each
motor pulled 7 1/2 amps once up to speed,accelerating
from stopped they pulled quite a bit more,perhaps
18-20 amps each motor for a couple seconds.probably
would be good to use a seperate relay for each motor.
If i had a third with dual fans i too would wire them to
run together or one to start right after the other if the
current inrush of the two starting together causes the
ignition to hiccup for a moment.

 

This was in the instructions so I guess I am good to go...just need to splice into the other fan...

NOTE: WITH THIS RELAY YOU CAN OPERATE A FAN RATED UP TO 30 AMP'S OR
TWO FANS AS LONG AS THE TOTAL CURRENT DRAW FOR BOTH IS LESS

THAN 30 AMP'S.