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Old Apr 6, 2021 | 01:38 PM
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HI EVERY ONE.about 2 weeks ago a member post a thread about running a position wire from the alternator to the heater-ac fan to make it run faster.can someone tell me just how he wired this. did he keep it with all the wires on the motor plus the wire from the alternator .I should of bookmark his post thanks for the help.
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Old Apr 6, 2021 | 01:47 PM
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If your heater fan does not run @ hi speed any more, most likely your fan relay is bad or wired wrong (the one located on the firewall). I would fix that verses running a "cheater / bubba wire

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Old Apr 6, 2021 | 09:39 PM
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brand new fan and my high works
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Old Apr 6, 2021 | 10:35 PM
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I thought high was direct power? Bypassing resistor..
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Old Apr 7, 2021 | 04:00 PM
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High is direct power, no resistor. If it's not running full speed I would look into putting a larger ground wire on and grounding it to the block/heads/accessory brackets somewhere. I put on a 10 gauge wire and grounded mine to the A/C bracket bolt.

Ultimately the C3 fan does not generate a ton of air. I ended up putting on a C4 fan. Not fun, but MUCH better air flow.

If a guy was looking for a way to get power directly from the charging system I would run it from the starter lug that comes from the battery located right below the fan vs running a wire all the way from the alternator. I don't think it's a good idea but if so inclined that's where I would get the power.

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Old Apr 7, 2021 | 05:44 PM
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Originally Posted by REELAV8R
High is direct power, no resistor. If it's not running full speed I would look into putting a larger ground wire on and grounding it to the block/heads/accessory brackets somewhere. I put on a 10 gauge wire and grounded mine to the A/C bracket bolt.

Ultimately the C3 fan does not generate a ton of air. I ended up putting on a C4 fan. Not fun, but MUCH better air flow.

If a guy was looking for a way to get power directly from the charging system I would run it from the starter lug that comes from the battery located right below the fan vs running a wire all the way from the alternator. I don't think it's a good idea but if so inclined that's where I would get the power.
Umm, do you have any further info about this? Parts, process, etc.? How did you get the idea to do that? Why does it provide better airflow? Function of the vanes in the fan?
Any info greatly appreciated!

Thanks!
Paul
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Old Apr 7, 2021 | 05:52 PM
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[QUOTE=73sbvert;1603269537]Umm, do you have any further info about this? Parts, process, etc.? How did you get the idea to do that? Why does it provide better airflow? Function of the vanes in the fan?
Any info greatly appreciated!

Thanks!
Paul[/QUOTE
https://www.corvetteforum.com/forums...ed-vettes.html

My thread on the process. you can do a search on the subject here in the forum and come up with many such threads. It's a massive improvement. Very happy with the results.

Last edited by REELAV8R; Apr 7, 2021 at 05:54 PM.
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