Looking to jump cooling fan of Corvette C4 1988
05-24-2016, 12:48 PM
#21
Yes sir. I'd like to jump both the primary and auxiliary fan on james' car so they run all the time
05-24-2016, 03:18 PM
#22
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Both relays are controlled by ground. You can run a switch with one side grounded and the other side to the neg terminal of the primary side of relay, and control the fans with the switch.
If you want fans on with ignition on, just ground the primary negative terminal of both relays.
The wire in question, is green on both relays.
If you want fans on with ignition on, just ground the primary negative terminal of both relays.
The wire in question, is green on both relays.
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tuned (05-24-2016)
05-24-2016, 03:21 PM
#23
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Here is a diagram with a double pole double throw switch.
http://members.shaw.ca/agent86/85%20Cooling%20Fan.gif
http://members.shaw.ca/agent86/85%20Cooling%20Fan.gif
05-24-2016, 04:36 PM
#24
great point!
220 is WAY too hot. If the fan fails, you'll hit 260+, dump all the coolant like a WW2 fighter with a radiator hit and red warning lamps before you can blink, I know, ..been there!
I have a 160 thermostat and one of these..
http://www.carbuildersolutions.com/u...ler-thermostat you make a great point here! I've seen that before. Matt is a first time c4 owner. I don't want to see that happen to him.
Now my fan comes on at 175 and I never see any higher than 185.
I have a 160 thermostat and one of these..
http://www.carbuildersolutions.com/u...ler-thermostat you make a great point here! I've seen that before. Matt is a first time c4 owner. I don't want to see that happen to him.
Now my fan comes on at 175 and I never see any higher than 185.
05-24-2016, 04:38 PM
#25
Here is a diagram with a double pole double throw switch.
http://members.shaw.ca/agent86/85%20Cooling%20Fan.gif
http://members.shaw.ca/agent86/85%20Cooling%20Fan.gif
05-24-2016, 04:50 PM
#26
I run at least an 8.7 eighth before expensive mods.
:
Last edited by tuned; 05-24-2016 at 04:51 PM.
05-24-2016, 05:00 PM
#27
just to clarify
Both relays are controlled by ground. You can run a switch with one side grounded and the other side to the neg terminal of the primary side of relay, and control the fans with the switch.
If you want fans on with ignition on, just ground the primary negative terminal of both relays.
The wire in question, is green on both relays.
If you want fans on with ignition on, just ground the primary negative terminal of both relays.
The wire in question, is green on both relays.
05-24-2016, 05:03 PM
#28
Safety Car
Next there is a relay located on the drivers side inner fender under the master cylinder, it has the same four wires running to it, again ground the small green wire and the fan will run as long as the key is on.
To make this a little better you could run those wires inside the cabin and install a switch that will allow you to turn the fans on and off whenever you feel the need.
You could also have this adjusted in the tune and have the main fan turn on earlier and then tie both green wires together so both fans come on together.
Last edited by bjankuski; 05-24-2016 at 05:07 PM.
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tuned (05-24-2016)
05-24-2016, 05:17 PM
#29
Safety Car
Both relays are controlled by ground. You can run a switch with one side grounded and the other side to the neg terminal of the primary side of relay, and control the fans with the switch.
If you want fans on with ignition on, just ground the primary negative terminal of both relays.
The wire in question, is green on both relays.
If you want fans on with ignition on, just ground the primary negative terminal of both relays.
The wire in question, is green on both relays.
The following users liked this post:
tuned (05-24-2016)
05-24-2016, 05:59 PM
#30
There is a relay located up on the radiator shroud, with four wires running to it. This relay turns on the aux fan, ground the small green wire coming out of the connector and that will run the fan as long as the key is on.
Next there is a relay located on the drivers side inner fender under the master cylinder, it has the same four wires running to it, again ground the small green wire and the fan will run as long as the key is on.
To make this a little better you could run those wires inside the cabin and install a switch that will allow you to turn the fans on and off whenever you feel the need.
You could also have this adjusted in the tune and have the main fan turn on earlier and then tie both green wires together so both fans come on together.
Next there is a relay located on the drivers side inner fender under the master cylinder, it has the same four wires running to it, again ground the small green wire and the fan will run as long as the key is on.
To make this a little better you could run those wires inside the cabin and install a switch that will allow you to turn the fans on and off whenever you feel the need.
You could also have this adjusted in the tune and have the main fan turn on earlier and then tie both green wires together so both fans come on together.
05-24-2016, 06:00 PM
#31
05-24-2016, 09:58 PM
#32
Le Mans Master
220 is WAY too hot. If the fan fails, you'll hit 260+, dump all the coolant like a WW2 fighter with a radiator hit and red warning lamps before you can blink, I know, ..been there!
I have a 160 thermostat and one of these..
http://www.carbuildersolutions.com/u...ler-thermostat
Now my fan comes on at 175 and I never see any higher than 185.
I have a 160 thermostat and one of these..
http://www.carbuildersolutions.com/u...ler-thermostat
Now my fan comes on at 175 and I never see any higher than 185.
