I am in the process of swapping in a 350 TPI motor from an 89 Trans Am GTA into my 84 Sport Coupe that had the 305 Carbed LG4. The old motor had a belt-driven cooling fan. I took an electric cooling fan from an 85 IROC 5.0 TPI. I have a Painless Wiring Harness for 90-92 TPI motors (I am converting it to Speed Density). The harness does not have a connector for an electric cooling fan. My question is, how can I install this/hook it up electrically? Thanks in advance.

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1984 Camaro Sport Coupe - 73K Miles
5.0 Carbed LG4
COMPLETELY stock except for a K&N Air Filter
F41 Suspension Package
700R4 Tranny
3.08 Rear End
New Paint
Best 1/4 Mile Run:
16.760 @ 80.74 MPH

Coming Soon:
350 TPI
Complete 3" Exhaust System
Aluminum Drive Shaft
3.27 Disc Brake Posi Rear

 

Get a fan relay. run a wire from the battery junction, to the relay, then to the + wire on the fan. Hook the + triggering wire on the relay to a source that comes on when the key is on, and ground the other one. Also ground the other wire from the fan. The fan should now come on whenever the key is turned on

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"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports

 

Don't listen to Jester... he keeps blowing relays!

Autozone or equivalent will have a 30amp relay. IIRC:

30- battery 12V
87- to the fan pos wire
85- goes to a switched 12V source and doesn't need a lot of current
86- ground

Both 30 and 87 should be about 16 gauge wires and some people run a fuse between the 87 post and the fan. If you have dual fans like me, I run two separate relays (in case I pull a Jester and fry one) with one on all the time and the other is wired to the defroster (which never worked) switch.

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

-=ICON Motorsports=-

 

Hey...thats exactly what I said excpt for the get a better relay part....which I'l be doing today

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"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports

 

Actually, i think you'd want #87A instead of #87 for the fan's positive wire... but yeah, use a relay...

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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

I think I would rather have it be controlled by the thermostat, though. Doesn't the engine need a warm-up period? Thanks.

 

yea is there a way to get the fan to come on when the engine reaches a certain temp? i know you can get a fan switch form jegs etc but those just plug into the factory wiring