Blower motor upgrade
Alot of you may already know about this but I just came across it today. Supposedly if you take a blower motor and fan for a 94 Chevy truck and put it in a square with air that it blows alot more air. Somebody on FB was saying something about it then posted a link. So here it is. Something to look into.
http://forum.73-87chevytrucks.com/sm...&topic=19365.0 |
Re: Blower motor upgrade
Replacing your old blower motor with a new stock one will make a big difference.I just did this in my crew.Also on my crew,most of the a/c stuff is long gone,so I pulled the evaporator core out of the heater-a/c box when I was replacing the heater cire& this really helped with air flow too.
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Re: Blower motor upgrade
nice mine has been getting weaker and weaker I guess I know what I am going to replace it with.
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I guess it is supposed to spin alot faster than what ours call for.
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Re: Blower motor upgrade
It's the same size motor. If you old one is still good, you can just lube the bearings and it'll run just like the new ones.
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Re: Blower motor upgrade
check the connections too,try adding a ground wire see if it gets better
take the blower out,clean out the "hampster wheel" mice may even have used it's space for nesting |
Re: Blower motor upgrade
"hampster wheel" mice may even have used it's space for nesting
Do you mean a work-out-area. |
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Did you happen to catch this post?
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We had a similar thread here a while back on the same thing. http://67-72chevytrucks.com/vboard/s...d.php?t=593977 I had made the bold but cryptic statement that the perceived improvement was merely a result of "new" being better condition than the "old" fan it was replacing.
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Has anyone thought about a voltage stepper for the high setting? That's what I'm looking into. Since the connectors appear to be simple spade connectors, something could be made plug-and-play without hacking the harness even.
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I installed a new blower motor for a '94 into my '80 this summer as well, and I took advantage of an opportunity to take some measurements with a calibrated anemometer before and after the upgrade. I reported my results in this thread: http://67-72chevytrucks.com/vboard/s...d.php?t=594506
Basically it was a bit of a disappointment in the sense that the increase in flow was barely perceptible, but it was measurable. Given the very low cost of a new blower motor I decided it was definitely worth the money spent. For $20 dollars or so I realized nearly a nearly 15% improvement in air flow. Perhaps my blower had been replaced years ago, and if it had been the original stock blower from 35 years ago I'd have seen a much greater improvement. I'd say if a person has any doubts about their blower, just plunk down the money and see if things get better. But unless you have a way to measure the difference, it is very possible you won't be able to tell. |
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But isn't the blower already getting maximum system voltage when the fan is set to HIGH? How would you increase the voltage even further? |
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