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I think it will come on if you leave the switch on and turn the ignition off, or turn on the ignition with the switch on. However, I think its a little more involved on 94+ fbodys than just grounding out the blue and green PCM wires. There is a third relay that I think controls the other two fan relays. I cant speak for the man, but I dont think he would tell you too much about this b/c he makes a product for what your trying to do and giving out product info may be bad business.
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93 Z28, A4 bone stock
94 Formula: sold
00 WS6: sold

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Posted By: 93FormulaBird On: 01-18-2008 @ 00:02:40     Reply | Top | Edit

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Dude Harlan can make some bad ass Manual fan switches with lights and all kinds of stuff. I was gonna buy one then my clutch took a shit
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~93 Formula M6~ Lingenfelter CAI, TF elbow, MSD Opti/Coil, Meziere Electric Water Pump relayed by HBH Racing, Optima Red Top, LT-4 Clutch w/ McLeod Kevlar Disk, 10% Tint.

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Posted By: Injuneer On: 01-18-2008 @ 09:19:32     Reply | Top | Edit

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From Shoebox:

http://shbox.com/1/fan_sw_diagram1.jpg
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Fred - 1994 Formula - 381ci / 275-shot N2O / TH400+GV
Mods: http://members.aol.com/InjuneerZZ/Mod.htm
Step into my office: http://www.injuneer.com/images/photos/Interior/DCP03464a.jpg

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Posted By: 94ylwcam On: 01-18-2008 @ 14:49:18     Reply | Top | Edit

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Thanks injun I looked for that in shoebox with no luck. And my car is a early 94 w/o low speed fans. At least it does not have the extra relay installed in the fuse box.
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94 Camaro Z28 moroso CA,trick flow elbow, MSD coil, Harwood fiberglass hood and Yellow Devil paint
moroso wires ,flow master

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94 Camaro Z28 moroso CA,trick flow elbow, MSD coil, Harwood fiberglass hood and Yellow Devil paint
moroso wires ,flow master

[ Edited on 01/18/2008 @ 18:59:06 ]

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Posted By: 94ylwcam On: 01-20-2008 @ 15:23:39     Reply | Top | Edit

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The schematic is just opposite of my car. The blue wire is the #2 fan and the green is the #1 fan. I installed the switch under the park brake handle. Some what out of sight and easy to flick with my hand on the handle. Im sure I will up grade to a three position and some fancy idicator lights later. Maybe the easy way with a HBH switch.
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94 Camaro Z28 moroso CA,trick flow elbow, MSD coil, Harwood fiberglass hood and Yellow Devil paint
moroso wires ,flow master

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Posted By: HBHRacing On: 01-20-2008 @ 18:04:03     Reply | Top | Edit

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The website isn't running yet as you can see.
http://www.hbhracing.com http://www.hbhracing.com/shop

I can always be emailed at hbhraicng@yahoo.com
















Early (2 relay) systems are triggered in the same way as the 3 relay systems. It's just after the relays that the changes take place. Green triggers primary, blue triggers secondary.
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Owner of HBHRacing.com Xtreme performance products
Click for new Fbody Tech Articles

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