I have been reading posts here for some time, and just registered today. I know this has been discussed before, but I am looking for a vendor or brand name (even GM part number if available) for a cooling fan switch to turn on my fan at 200 deg or so and off at 180 or a little higher. I have just purchased my 180 deg thermostat, a new sending unit for the gage, flush, antifreeze, gasket, and whatever.... What switch do you recommend? What prices are typical? Does GM sell one in this heat range? Thanks. Jess
Oh yeah, I have a new trans cooler to install too.

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Blue '86 IROC, 305 TPI
Ported Plenum, gutted air boxes, FastChip, KN filters, TB Airfoil... more to come. Not raced yet. 70,000 original miles. Owned since 1992.

 

Here's an article I wrote on this very issue:

http://www.thirdgen.org/newdesign/tech/cool.shtml

Once you've read it, shoot me an e-mail if you want specifics.

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Willie

Moderator
History/Restoration Board
http://www.thirdgen.org

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
ATI D1SC w/custom Twin Intercoolers.
Best E/T: 12.00
Best Trap Speed: 117.69 mph

SC Z!!!

1987 "20th Anniversary Commemorative Edition" Z28 Convertible
305 TPI / 5-speed
Super Chevy Show Class Winner, 1998.

TPLS Z!!!

 

Thanks for the info Willie.
Jess

 

Summit sells a jet fan swich that turns on at 195 and cuts off at 185 for 40-50 bucks. Got one on mine works great.

www.summitracing.com

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http://bitchincamaro.no-ip.com 91 RS Camaro 5-speed black w/t-tops 305 TPI
MODS: SLP cold air intake w/K&N, air foil,Accel 19 LB injectors, March aluminum under drive pullies, Alburn pro posi, Aluminum drive shaft, Random Technology 3'' cat-back, 8.5mm MSD wires, 160 thermo, jet fan swich, Custom chip with 91 vette computer, SSBC slotted rotors, optima battery in the rear, BMR adjustable lower control arms and panhard rod, Kenny Brown strut tower brace, TB bypass, no egr, no air

 

I thought that there was a GM fan switch that did the same thing as the hypertech and others? Anybody know what the part number is?

 

Thanks for the info, I bought the Hypertech switch for $39.99 at A & A Auto. They had it in stock. Jess

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Blue '86 IROC, 305 TPI
Ported Plenum, gutted air boxes, SuperChip, KN filters, TB Airfoil, transmission cooler... more to come. Not raced yet. 70,000 original miles. Owned since 1992.

 

Do what I did. Wire up your own fan switch for $2.99. It works just as good, go to the autoparts store, get a switch, wire it from you battary to the switch, the hot wire from the fan to the switch, then run the ground to a bolt somewhere, and then run it to your ACC. It works great. Just takes some time because you have to map it out yourself.

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Blue 87 IROC-Z Camaro,305 TPI
3" Flowmaster

 

Thanks for the info. I got the Hypertech unit for $39.99 at A & A Auto Parts. Now all I need is a spare Saturday to flush the system and install some stuff. Jess

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Blue '86 IROC, 305 TPI
Ported Plenum, gutted air boxes, SuperChip, KN filters, TB Airfoil, transmission cooler... more to come. Not raced yet. 70,000 original miles. Owned since 1992.