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? about switched 12v source for elec fan #810397 09/21/10 02:33 PM 09/21/10 02:33 PM
Joined: Apr 2007 Posts: 807 Toronto, Canada D dirtybee OP super stock
dirtybee OP super stock D Joined: Apr 2007 Posts: 807 Toronto, Canada	is there a suitable source under the hood to hook up my switched 12v source for my thermo switch on my HHR fan or do i have to run the wire into the passenger compartment? thanks

Re: ? about switched 12v source for elec fan [Re: dirtybee] #810398 09/21/10 02:47 PM 09/21/10 02:47 PM
Joined: Nov 2003 Posts: 3,577 Long Island, NY USA B BergmanAutoCraft master
BergmanAutoCraft master B Joined: Nov 2003 Posts: 3,577 Long Island, NY USA	Since I dont use ignitions that use a balast I normally tie the start and run wires together for the ignition. This is a good spot for a relay switched hot. Then I use a OE type, ground triggered sensor to activate the fan.

Re: ? about switched 12v source for elec fan [Re: BergmanAutoCraft] #810399 09/21/10 03:17 PM 09/21/10 03:17 PM
Joined: Apr 2007 Posts: 807 Toronto, Canada D dirtybee OP super stock
dirtybee OP super stock D Joined: Apr 2007 Posts: 807 Toronto, Canada	thanks, i run an msd 6al and gutted the ballast and put a 10ga wire in to effectively omit the resistor. i'm using the summit 185f on 175f off kit. i'll try the ballast as the switched 12v.

Re: ? about switched 12v source for elec fan [Re: dirtybee] #810400 09/21/10 03:24 PM 09/21/10 03:24 PM
Joined: Oct 2003 Posts: 1,371 Costa Mesa, CA C chache876 pro stock
chache876 pro stock C Joined: Oct 2003 Posts: 1,371 Costa Mesa, CA	Quote: thanks, i run an msd 6al and gutted the ballast and put a 10ga wire in to effectively omit the resistor. i'm using the summit 185f on 175f off kit. i'll try the ballast as the switched 12v. I've had bad luck with those switches, hopefully they work out better for you

Re: ? about switched 12v source for elec fan [Re: chache876] #810401 09/21/10 04:35 PM 09/21/10 04:35 PM
Joined: Apr 2007 Posts: 807 Toronto, Canada D dirtybee OP super stock
dirtybee OP super stock D Joined: Apr 2007 Posts: 807 Toronto, Canada	Quote: Quote: thanks, i run an msd 6al and gutted the ballast and put a 10ga wire in to effectively omit the resistor. i'm using the summit 185f on 175f off kit. i'll try the ballast as the switched 12v. I've had bad luck with those switches, hopefully they work out better for you what happened?

Re: ? about switched 12v source for elec fan [Re: dirtybee] #810402 09/21/10 05:41 PM 09/21/10 05:41 PM
Joined: Oct 2003 Posts: 1,371 Costa Mesa, CA C chache876 pro stock
chache876 pro stock C Joined: Oct 2003 Posts: 1,371 Costa Mesa, CA	I went through a few of those preset switches, they weren't turning on at the specified temperature. I tested them out in a boiling pot of water with a thermometer and they were activating about 10-15* higher than what they were supposed to operate at. Maybe I just got a bad batch but I just decided to go with an adjustable unit.

Re: ? about switched 12v source for elec fan [Re: chache876] #810403 09/21/10 10:19 PM 09/21/10 10:19 PM
Joined: Nov 2003 Posts: 3,577 Long Island, NY USA B BergmanAutoCraft master
BergmanAutoCraft master B Joined: Nov 2003 Posts: 3,577 Long Island, NY USA	You can always use an OE replacement like a Grand Nation or Turbo TA switch. Very reliable.

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