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Power Window Idea <--- IT WORKS

Jason4x4

Jason4x4

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I have been thinking about my slow power windows. It seems it isn't just mine, but everyone's. SO I have been seeing alot of topics about adding relays to headlights to make them brighter by adding full battery voltage. And I already added a relay to my starter for the same reason.

So, I am thinking about adding some relay's to my power windows, I looked at a diagram today at work and it didn't show any. I have no problem wiring it up, but has anybody tried this yet? If not, I think I will give it a whirl and maybe do a write up on it.

Let me know what ya'll think. :D

EDIT, I just got one side done, The drivers, and it is almost twice as fast as the passenger side now. It used to be slower. I used 2 standard bosch relays.
Terminal 85- power from the window switch.
Terminal 30- To window motor
Terminal 87A & 86- to Ground
Terminal 87- Goes to power, I used the junction block on the firewall, so I get as much voltage as possible.

I am going to do the other side, it is just too hot right now. It was pretty simple, and they work soo much faster. It's amazing how much voltage drop there is on 25 year old wires and connectors.
here's a pic of where I put the relays. I took the pic before I ran the power wire to them.

HPIM0081.JPG
 
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Interesting.. :thinking: just don't have your fingers in the way on the first test. ;) :D

I too need to do something with mine soon. They're getting slow.. they've never been great since I've had it, but they're just getting worse every year. I've even gone in a did all the TLC stuff, to little avail.
 
I don't know about using full battery amperage as it may do as the above have stated and shatter a window, but if you could put say 50-60 amps to the system it should really speed up the windows. I have the same problem with my Astro windows they are extremely slow, especially when compared to the wife's Lumina. Let us know how it goes and what you did specifically, since I plan on adding power windows to the K5.
 
The window motor will only pull as much power as it can use. If you put a 10,000 amp source to to 2 amp motor it'll still only draw 2 amps.

The same CAN NOT be said of voltage.

Voltage is force, amps are flow.

A friend of mine has done the relay trick on his 4runner. He has a write-up on it out there soemwhere.
 
Jason4x4 said:
I have been thinking about my slow power windows. It seems it isn't just mine, but everyone's. SO I have been seeing alot of topics about adding relays to headlights to make them brighter by adding full battery voltage. And I already added a relay to my starter for the same reason.
Click to expand...

Since the starter has a direct line from the battery what good is a relay there? How much more power can it get?:confused:
 
I wouldn't bother. I tried this allready but hooking the two wires from the motor right to the battery. Only like 2 feet of 10 gauge wire too. I had a friend hold the battery by the door while i held the leads to it. No faster. And yes, it was a good battery. Red Top Optima.
 
If you were to take the motor apart, clean the commutator(The copper area that the brushes touch), replace the brushes, bearings or bushings, change the grease (remove all of the old dirt encrusted crap), and regrease the window slides. Then everything will move easier and faster.
 
It Works

It works, see post # 1. A while back when I replaced the window seals, I put new rollers on the regulators, and cleaned and lubed everything, they were still slow.
 
Jason4x4 said:
It works, see post # 1. A while back when I replaced the window seals, I put new rollers on the regulators, and cleaned and lubed everything, they were still slow.
Click to expand...
Good Engineering, but two relays?
Edit; I get it, one relay each window.:doah:
 
I put them downstream from the switch, so that i'm not losing anything through the old switch.
 
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