In a nutshell there will be no power to fan wire (#47) until wire (#71) is grounded via your engine temp switch, or a toggle switch.  To check it, with key on just ground wire (#71)...relay should then close and turn fan on via (#47).  In your picture you had a 20amp relay..you should have (2) 30amp relays one for horn and one for fan. Maybe the fan relay is missing and just needs to be plugged in?

From Speedway site:

Notes

Kit has two flashers for turn and hazard and they are the 2 prong style
30 amp fuse for heat/cool
Two 30 amp relays, one each for the horn and electric cooling fan
Horn and electric fan both have 20 amp fuses in dedicated circuits
Main harness is over 12’ in length to satisfy most applications
Headlights are on a 30 amp fused circuit

Fan Instructions:


Front of vehicle connections
Run gray [47] to fan positive + wire. Run fan
ground wire- to chassis ground. Black (71) is fan
relay ground and routes to temperature sensor in
engine, toggle switch going to ground, or direct
to ground if you want fan to run continuous when
key is in run position.


Here is instructions Link:

https://static.speedwaymotors.com/pdf/9106401712circuitwiringkitinstructions.pdf

Big thanks guy's.
Went to work today and started tearing down this convertible.
Then hit Black bear diner for dinner. Yummy.
My woman surprised me with a protective backpack for my drone. She's so awesome.
It was a good day.

Happy birthday guys, and a late one to you Sixball.

Happy Birthday you two Hope everything goes your way

Just recently posted it...still available as of 6/19/18.