LT1-LT4 Modifications 1993-97 Gen II Small Block V8

fans on high speed?

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Old May 25, 2008 | 11:07 AM
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Default fans on high speed?

i am wondering how long i can keep my fans on high speed to cool my intercooler better when at low speed or stops, mainly when at the strip or occasional street fun..was thinking about wiring a switch to accomplish this...i just dont want to burn my fans up if on high for extended periods of time
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Old May 25, 2008 | 11:28 AM
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I've got a manual switch on mine, I turn it on when in the Tim Hortons drive thru or stuck in traffic, but that's about it. I have forgotten to turn them off on occasion, and they've run for over 1/2 hour at a time. They will keep running, no problem, but you'll wear out the motors in the fans quicker. That being said, those fan motors should still last a long time, and are relatively inexpensive, and easy to replace.
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Old May 25, 2008 | 11:32 AM
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Originally Posted by lt170chevelle
i am wondering how long i can keep my fans on high speed to cool my intercooler better when at low speed or stops, mainly when at the strip or occasional street fun..was thinking about wiring a switch to accomplish this...i just dont want to burn my fans up if on high for extended periods of time
You should be fine - many folks run manual switches to keep the fans running
in hi-temp environments. Consider this too, that when the A/C is running,
both fans are running. If, at some point, one or both fans go south, then you
can replace it/them with heavy duty motors.
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Old May 25, 2008 | 06:02 PM
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yeah thats true didnt think about the a/c running them all the time.and they relatively cheap so cool..i will run a switch
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Old May 26, 2008 | 01:34 AM
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manual switch is the only way to do this really. and its the best
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Old May 26, 2008 | 08:58 AM
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I have two Switches in mine controlling both Fans..I haven't had any problems at all out of them yet.
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Old May 26, 2008 | 09:02 AM
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yeah i am going to keep my low speed on with the key like i already have and hook a switch to switch them to high when needed. also what is the best way of wiring up the high switch? should i just wire it to the relay? is that what is the main control point for them?
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Old May 26, 2008 | 10:08 AM
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Originally Posted by lt170chevelle
yeah i am going to keep my low speed on with the key like i already have and hook a switch to switch them to high when needed. also what is the best way of wiring up the high switch? should i just wire it to the relay? is that what is the main control point for them?
http://shbox.com/1/schematics_wiring.html
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