dual fans? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

karlbenz · 08-12-2018, 05:56 PM

we put dual fans on my sons 63. the circuit breaker keeps kicking when it gets warmed up. can I put a bigger circuit breaker on or should I wire them separate with different relays and breakers?

**Clyde65** · 08-12-2018, 07:03 PM

Why two fans? How big are the fans and which fans did you get?

Many electric fans pull huge amounts of amps when starting. I suggest using relays to draw your power from the battery directly as well.

karlbenz · 08-12-2018, 07:07 PM

2-12” fans. Came with a 30amp circuit breaker and one relay
relay is 40amp

**Clyde65** · 08-12-2018, 08:59 PM

Got A/C?

Wire the one to come on when engine starts and then the other @160 if that’s what thermostat is.

If you have AC, then use a tri-nary switch to kick the one on with AC and at temp.

karlbenz · 08-13-2018, 06:32 PM

Quote:

Originally Posted by Clyde65

Got A/C?

Wire the one to come on when engine starts and then the other @160 if that’s what thermostat is.

If you have AC, then use a tri-nary switch to kick the one on with AC and at temp.

No ac

**Clyde65** · 08-13-2018, 07:41 PM

No need for dual fans, just use a 16” spal fan, puller that pulls at least 2200 cfm

karlbenz · 08-13-2018, 08:07 PM

Quote:

Originally Posted by Clyde65

No need for dual fans, just use a 16” spal fan, puller that pulls at least 2200 cfm

No offense but I was looking to figure this here out. Not looking to buy another fan. I think I got it now though

**Captainfab** · 08-13-2018, 11:32 PM

I would wire them with each having it's own breaker and relay but controlled with the same sensor

karlbenz · 08-14-2018, 07:25 AM

Quote:

Originally Posted by Captainfab

I would wire them with each having it's own breaker and relay but controlled with the same sensor

That’s what I did. Thanks

**Clyde65** · 08-14-2018, 07:28 PM

Quote:

Originally Posted by karlbenz

No offense but I was looking to figure this here out. Not looking to buy another fan. I think I got it now though

None taken, glad you got it ironed out!!

08-12-2018, 05:56 PM	#1
karlbenz Registered User Join Date: Nov 2008 Location: kannapolis, nc Posts: 546	dual fans? we put dual fans on my sons 63. the circuit breaker keeps kicking when it gets warmed up. can I put a bigger circuit breaker on or should I wire them separate with different relays and breakers? __________________ 2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis 1964 GMC K10 383cu in/sm465/twin stick np205 1965 Chevy C60

08-12-2018, 07:03 PM	#2
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,549	Re: dual fans? Why two fans? How big are the fans and which fans did you get? Many electric fans pull huge amounts of amps when starting. I suggest using relays to draw your power from the battery directly as well. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

08-12-2018, 07:07 PM	#3
karlbenz Registered User Join Date: Nov 2008 Location: kannapolis, nc Posts: 546	Re: dual fans? 2-12” fans. Came with a 30amp circuit breaker and one relay relay is 40amp __________________ 2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis 1964 GMC K10 383cu in/sm465/twin stick np205 1965 Chevy C60 Last edited by karlbenz; 08-12-2018 at 07:15 PM.

08-12-2018, 08:59 PM	#4
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,549	Re: dual fans? Got A/C? Wire the one to come on when engine starts and then the other @160 if that’s what thermostat is. If you have AC, then use a tri-nary switch to kick the one on with AC and at temp. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

08-13-2018, 07:41 PM	#6
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,549	Re: dual fans? No need for dual fans, just use a 16” spal fan, puller that pulls at least 2200 cfm __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

08-13-2018, 11:32 PM	#8
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,254	Re: dual fans? I would wire them with each having it's own breaker and relay but controlled with the same sensor __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE



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