How To Choose An Electric Fan Tutorial Instructions Flex A Lite

Its going to start getting Hot Guys.
That time of the year, next week back in the Mid upper 80's.
It has been a rainy wet spring & still cool here this morning 1st day of summer 2019.

I took the 1963 Pontiac out for a 30 mile ride this morning.
Running great & so smooth with the new Holley #9380 competition race 4-bbl carb.
Drive 80-90-100 mph & never think you have a TH400 trans with no overdrive.

Got gas sat waiting to turn out onto the expressway temps climbed up 200F.
I need more electric cooling fan.
Found the booster style 12 inch electric fan I want to buy soon.
Flex-A-Lite #392.
Add about 900 cfm more. Going to to use it as a Puller Sucker on the passenger side of my radiator.
Its tight fit & can not mount Fullsize with an integrated shroud unless I cut away the radiator core support & locate the radiator 3-5 inches forward.
Not something I want to do to my old 63 Gp.

What you get into with custom engine swaps.
Improvise.
 
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I soon as I can I will buy the #392 Flex-A-Lite Fan.
About 1 week away.
Doing away with the Fan Relay.
Going to install a Hersey Cole Magnetic Pole Solenoid like I did on the 1987 Corvette.

Those Relays fail at the worst time in summer heat.
Overheated engine in traffic because another Bosch Relay failed.
Been through like 10 of them.
Carry spares in the console of the Gp.

Magnetic pole relay continuous duty 250-500 amps @ 12vdc way better than 30 -70 amp relays that keep burning up.
 
spending the required time to read ALL the linked info posted below,
and avoiding the potentially related issues you might face,
makes the knowledge gained worth the effort.

http://www.superchevy.com/how-to/additional-tech/1907-tame-engine-heat-budget-electric-fan-system

http://www.griffinrad.com/tips.php?tid=45

https://www.speedwaymotors.com/the-toolbox/speedway-tech-talk-electric-cooling-fans/29037

https://www.holley.com/blog/post/how_to_choose_an_electric_radiator_fan/

https://www.hotrod.com/articles/high-performance-cooling-system-101-keep-your-cool/

https://www.carid.com/articles/hot-under-hood-performance-cooling-fans-chase-away-excess-heat.html

https://blog.championcooling.com/2017/06/09/relay-wiring/

https://www.summitracing.com/search?SortBy=BestKeywordMatch&keyword=5000 cfm electric radiator fan&cm_mmc=ppc-google-_-search-_-general-terms-_-keyword
 
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I read the first link from Super Chevy.

I wonder just how critical it is to keep the electrical spike down when starting the fans. It would
be more applicable to the later cars with all the electronics. Mine come on at 60% and ramp up
to 100% over the next 10°F. I guess you can't go wrong by minimizing the spike.
 
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