akitagandy
Member
What CFM fan do I need to run,I know it will be a 16". SBC 350 stock with a cam
electric fans
- Thread starter akitagandy
- Start date
Duke
Member
A good day goes bad quick with overheating. I would use a fan that has the most CFM, it is hard to have to much air for cooling.
Flex-a-lite 398 - Flex-a-lite Syclone S-Blade Electric Fans – SummitRacing.com
Flex-a-lite 398 - Flex-a-lite Syclone S-Blade Electric Fans – SummitRacing.com
akitagandy said:
I have a 16" fan I'll bring it to the BASH. It is very slightly used about 100 miles on it. You can have it if you want it. I put it on my blower car and it would not run cool. So I put dual fans on it. Well turns out it was the timing. So this fan would have cooled it fine.
If someone is having a real cooling problem, you might want to look at the fan from a
Lincoln Mk VII. It needs about a 50 or 70 amp relay, but will probably be better
with a controller like the ones from dccontrol.com. With just the relay the fan will
blow the hat off your head. I have not tried the controller, but it is supposed to regulate the fan speed as needed. The fan is a two speed, but I have not figured
out how to get the low speed hooked up.
A good second choice is the fan from a Taurus stationwagon with a 3.8 V6. That's
probably the only engine they came with. I am using the Mk VII fan and it will move some air. I have not used the Taurus one, but have read good reviews from the
Mustang guys.
If you want to compare fans look at the amps required, as different companies use
different ratings for cfm. If it takes a 20 amp or less relay, thats the motor and draw you are getting. If it is 50 amps, you can see what's going on.
Be sure to check the web site above, they explain a lot better than me.
good luck,
railroad
Lincoln Mk VII. It needs about a 50 or 70 amp relay, but will probably be better
with a controller like the ones from dccontrol.com. With just the relay the fan will
blow the hat off your head. I have not tried the controller, but it is supposed to regulate the fan speed as needed. The fan is a two speed, but I have not figured
out how to get the low speed hooked up.
A good second choice is the fan from a Taurus stationwagon with a 3.8 V6. That's
probably the only engine they came with. I am using the Mk VII fan and it will move some air. I have not used the Taurus one, but have read good reviews from the
Mustang guys.
If you want to compare fans look at the amps required, as different companies use
different ratings for cfm. If it takes a 20 amp or less relay, thats the motor and draw you are getting. If it is 50 amps, you can see what's going on.
Be sure to check the web site above, they explain a lot better than me.
good luck,
railroad
Screaming Metal
Active Member
akitagandy said:
Do as Duke and others suggested.....get as much as you can.......when it comes the life of your engine and its components.....its best to have too much than not enough cooling compacity......You really don't think about it till your driving and that temp guage starts to creep up....getting over 200 and going strong and then you start getting scared.....seeing dollar signs jumping over the fence. By that time.....its too late.....your just depending on luck to get thru it.....not to mention the embarrassment.
We deal with racing engines that cost $100,000.00 up......we do nothing short of trying to learn all of Merlins tricks.....if we can find them! Ha!.......the old saying goes....'when in doubt, clean it, flush it and/or replace it!'
90% of our motors haven't got radiators or cooling as you would think of it.......but we do take it seriously.
And there is a very fine line at where oils and lubricants break down at, and its between the tempurature of running hot and the pressurizied radiator boiling point! When I see a overheated engine........I see in my mind.....scratched crank journals, shredded Clevitite bearing shells, grit floating in the oil being circulated by the oil pump to every critical part of the engine......it just makes me cringe!!!!!!
Duke
Member
That is what I see also. If the fan pulls to much air you can always turn it off. If it does not pull enough air - Well, your screwed. Also a pull fan is more efficient that a push fan. I have a 16" 2700CFM on my bucket with a aluminum radiator and a 15 pound press cap. Works great at 98 ambient Temp on a mild 350HO 9.1 to 1 compression and vortex heads.
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