Bast cooling electric fan

[Goldust1971]

Looking for a cooling fan that will work with my car, 1971 duster 408 484 cam headers, 750 Holly, M1 intake, stock heads, 10 five compression, 410 gears, four speed factory 340 radiator. I have one pushing and pulling need better.

 

[Bodyperson]

Looking for a cooling fan that will work with my car, 1971 duster 408 484 cam headers, 750 Holly, M1 intake, stock heads, 10 five compression, 410 gears, four speed factory 340 radiator. I have one pushing and pulling need better.

Man one pushing and one pulling is really plugging that radiator air flow. Id look into getting rid of the pusher at least.

 

[RustyRatRod]

Mopar Performance Viscous Fan Package. Belt driven bowl of badassary.

 

[junkyardhero]

sounds like you're trying to treat the symptom and not the cause.

what's the rest of the cooling system set up?

 

[72bluNblu]

If you're going to run a stand alone electric fan you're going to need a minimum of ~3,000 cfm from the fan. There are really expensive fans out there that only flow half that.

Using a pusher and a puller at the same time is extremely inefficient. You're blocking a ton of free air flow. Above 25mph in the majority of situations you shouldn't need a fan at all, the air coming in through the radiator should be more than enough. The fan should only be necessary at slow speeds and idle.

What was the car doing (or not doing) that led to that set up? When does it run hot? When does it run cool?

And for the record, if it's running at 200° or less, it's not running hot.