A
Anonymous
Guest
I assume most of the people working on these motors have switched to an electric cooling fan. How is this done/where do you buy the stuff?
A
Anonymous
Guest
not me
A
Anonymous
Guest
The idea is that you don't pick up much power because your alternator will be demanding more power from the engine. A puller fan on the engine side of the rad will cool better than one pushing from the front. A good 14" or better, a 16" would be ideal. Set it up with a relay and a thermostatic switch so that it only comes on when needed and turns off by itself.
Installing a fan clutch may be a better option as it will reduce the drag on the engine and you have a clean look, no wiring, and a much more dependable setup.
Installing a fan clutch may be a better option as it will reduce the drag on the engine and you have a clean look, no wiring, and a much more dependable setup.
pedal2themetal45
Famous Member
INLINER BEAT ME TO IT WHAT HE SAID
HI SSM
You don't realy gain alot with an electric fan maybe 1 or 2 ponies. But with a 6 it might be worth it..
Not sure on how big of cfm you would need I'm sure CobraJack could help with this..
You just take off the fan blad thats on your motor (leave the pully and belt you need this to turn the water pump). The Elect fan is attached to the radiator (eather front or back depending on if its a pusher or puller fan..) If you run a elect fan thermo switch then you would run constance elect to the fan throu the thermo switch. But this would cause the fan to run even if the motor and ign switch is off untill the motor cools down to the thermo temp. Or you run key on power to just the fan and the fan would run only the key is on. with this way you wouldn't need a thermo switch. OH you would need to run the power thou a relay so you get full voltage to the fan.. There is most likely instruction with any fan you buy for wireing.
Hope this helps
tim
HI SSM
You don't realy gain alot with an electric fan maybe 1 or 2 ponies. But with a 6 it might be worth it..
Not sure on how big of cfm you would need I'm sure CobraJack could help with this..
You just take off the fan blad thats on your motor (leave the pully and belt you need this to turn the water pump). The Elect fan is attached to the radiator (eather front or back depending on if its a pusher or puller fan..) If you run a elect fan thermo switch then you would run constance elect to the fan throu the thermo switch. But this would cause the fan to run even if the motor and ign switch is off untill the motor cools down to the thermo temp. Or you run key on power to just the fan and the fan would run only the key is on. with this way you wouldn't need a thermo switch. OH you would need to run the power thou a relay so you get full voltage to the fan.. There is most likely instruction with any fan you buy for wireing.
Hope this helps
tim
A
Anonymous
Guest
Yep, and the next best thing would be a Flex Fan, also less resistance at higher RPMs. I've always wondered why they don't combine Flex Fans with a Fan Clutch?Inliner":9gmox2e8 said:
A
Anonymous
Guest
I disagree that you don't pick up power. My electric only cuts on when idling so it can't be pulling the alt down. Also a properly setup electric should be just as dependable as a clutch fan. Seems most vehicles come with them now.
I keep my stock old fan for simplicity. Too many modern things...and it's just that much more to break. 
The electric fan will help for this reason. Most alternators put out more electricity at idle then is being used, so it's just basically wasted (okay, this is simplified, I know the VR regulates the field which regulates the power output). If you choose the right fan, and don't have a huge 500W stereo in the back, the alternator will not pull the engine down at all.
I don't like the flex fans...way too loud in my opinion at idle or cruising speeds. plus, since they flex based on ENGINE rpm, it is conceivable that you'll still overheat because if you rev your engine while sitting still, you don't have as much air flow, where the fixed fan still provides flow. Is that realistic...no, not really, but it is a fact.
Until I get a turbo, I'll be running my stock 4 blade fan. I've had no problems with overheating with it...and I can't imagine I'm losing too much power...at least not enough to notice.
Slade
The electric fan will help for this reason. Most alternators put out more electricity at idle then is being used, so it's just basically wasted (okay, this is simplified, I know the VR regulates the field which regulates the power output). If you choose the right fan, and don't have a huge 500W stereo in the back, the alternator will not pull the engine down at all.
I don't like the flex fans...way too loud in my opinion at idle or cruising speeds. plus, since they flex based on ENGINE rpm, it is conceivable that you'll still overheat because if you rev your engine while sitting still, you don't have as much air flow, where the fixed fan still provides flow. Is that realistic...no, not really, but it is a fact.
Until I get a turbo, I'll be running my stock 4 blade fan. I've had no problems with overheating with it...and I can't imagine I'm losing too much power...at least not enough to notice.
Slade
A
Anonymous
Guest
Saved this from an old post, forgot who said it:
A
Anonymous
Guest
it got up to 110 here tuesday. falcon was hitting 210 on the temp guage in stop and go. so i added the 18" hayden flexfan which has 6 blades. my engine isnt turning over that fast at cruise so i dont even hear it. but it seems to put out a lot of air at idle. the weather got cooler now so i cant really tell how much improvement was made. it usually runs at 180 max at freeway speeds.
Similar threads
All Small Six
New Adventures in electrics fans and inline 6’s
All Small Six
Mount fan to pully w/o spacer?
