[IA] Express Down power window conversion!
11-26-2013, 08:43 AM
#1
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Car: 89 forrmula
Engine: 350 TBI
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Express Down power window conversion!
I have a few harnesses built that allow you to convert your existing power windows to Express Down 1-touch windows for both sides! PM if interested.....they are $79 each and mounts under the console trim plate.
Last edited by formula1LE; 01-20-2015 at 10:43 AM.
11-26-2013, 02:19 PM
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Car: 89 forrmula
Engine: 350 TBI
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Axle/Gears: 3.55
Re: Express Down power window conversion!
Yes....it will work the same so long as the switches are mounted under the console. My harness enables both windows to operate in Express Down mode.
11-27-2013, 05:05 PM
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Re: Express Down power window conversion!
If nobody wants the Express Down feature, standard relay power window harnesses are $59 for both doors if anybody is interested. This will allow you to gain much faster operating windows and less voltage drop-either way its a great upgrade over stock.
Last edited by formula1LE; 01-20-2015 at 10:41 AM.
12-04-2013, 09:11 PM
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Re: Express Down power window conversion!
Man, am I really interested in the relay harness
Do you have a build thread that shows the installation of the harness???
Do you have a build thread that shows the installation of the harness???
12-05-2013, 05:50 AM
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Car: 89 forrmula
Engine: 350 TBI
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Axle/Gears: 3.55
Re: Express Down power window conversion!
I took reference photos as I assembled the harness-then I tested it to make sure everything works as designed. I include all the info along with the installation instructions for the relay kit.
12-05-2013, 01:41 PM
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Axle/Gears: 3.55
Re: Express Down power window conversion!
Jay-the relays I use feature high capacity contacts which can transfer a large amount of current without arcing or overheating-thus reducing voltage drop for faster window operation. The contact material is higher in molybdenum and nickel vs. cheapo $5 relays so they last virtually forever. Cheap parts store relays which most aftermarket companies seem to use are Chinese or Taiwan and use a tin alloy filler metal in the contact material-this makes them cheaper to manufacture but also makes them less tolerable to high amp loads where excessive heat can be generated. If you've ever had a relay "stick on" then you know what I'm talking about.
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12-05-2013, 03:11 PM
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Re: Express Down power window conversion!
$400? It's $79 for the entire kit which does both windows. Express up AND down now $159!
Last edited by formula1LE; 01-20-2015 at 10:43 AM.
12-09-2013, 03:09 PM
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Car: 89 forrmula
Engine: 350 TBI
Transmission: T-5
Axle/Gears: 3.55
Re: Express Down power window conversion!
Until I finish the express down harness, I just completed a prototype relay harness using the OEM window switch connectors and adding 4 relays. It too mounts inside the console below the trim plate. At least upgrading to relayower should speed them up a bit. $59 is the cost for a relay-integrated power window harness without the Express Down feature.
Last edited by formula1LE; 01-20-2015 at 10:43 AM.
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