How do i go about wirring up a switch for my fans,please be very detailed if possible,when should i turn on and when should i leave it

Thanks

 

What year & engine?

Tim

 

87 gta 305 5spd

 

I would also like that info.
My car is TBI so the single fan is controled by it's own temp sensor/switch in the passengers side head. Right now I have the stock fan switch in the head and it isn't hooked up because I have a 160 thermo on the engine. I'm still using the stock relay on the drivers side firewall. The fan comes on with ignition and I don't like that. I'm going to put a 180 thermo in when I reprogram my EPROM and get/build a fan switch.
Tim, do you have any schimatics for making an adjustable temp fan on switch?

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, Jon (350 TBI!)
91 Red RS w/grey int, sq stereo (Alpine v12, kicker solo, MB quart premium etc)

• Holley 670 TB unit w/ 1/2" spacer/adapter
• Edelbrock RPM vortec intake
• 350ho 330hp vortec crate motor
• 8" harm. balancer
• Stewart stage 2 water pump w/160 thermo
• SLP tri-y headers to full 3"
• Rebuilt trans w/ SLP shift kit
• Centerline 16x8's all around
• 36/24 mm sway bars
• Full poly bushings, even motor mounts
• SLP LCA and panhard
• Alston SFCs
• Edelbrock 3 point STB
• Global west steering brace aka wonderbar
• Eibach pro kit springs
• Bilstien high perf. struts and shocks
• All this and I still have AC

My websiteAny questions?

 

ok lets see, 87, that has only one electric fan right? my 86 only has one and i have a switch like u r talking about. i wired it into the airconditioning pressure switch on the passenger front wheelwell. when the AC comes on the fan comes on too. so when i flip my switch, it connects the pressure switch and my fan comes on. it works great because when i turn off my ignition off it turns off too so i don't run my battery dead. i would give you more exact instructions as to how i did this but my car is at home and i am at school.

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86 IROC-Z
40,000 miles!!
305 TPI
1 gutted maf/airbox
2 k&n filters
3 manual cooling fan switch
4 headers, no cat, cat back flowmaster
700R4 tranny
1 shift kit
2 manual converter switch
BF Goodrich radial TAs
3.23 gears
georgous car repainted by my dad and assembled by me

FASTER THAN YOU THINK FOR A "STOCK" 305 hehe.

 

NO i have 2 fans not one

 

ok i wondered. i couldn't remember which year they switched them.

------------------
86 IROC-Z
40,000 miles!!
305 TPI
gutted maf/airbox
k&n filters
manual cooling fan switch
headers, no cat, cat back flowmaster
700R4 tranny
shift kit
manual converter switch
BF Goodrich radial TAs
3.23 gears
georgous car repainted by my dad and assembled by me

FASTER THAN YOU THINK FOR A "STOCK" 305 hehe.