LT1 Cooling Fans Current....anybody every actually measure it??? - LS1TECH

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LT1 Cooling Fans Current....anybody every actually measure it???

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Old 04-20-2012, 09:27 AM   #1
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Default LT1 Cooling Fans Current....anybody every actually measure it???

Wondering how much current the fans actually pull on HI??? anybody actually measure it or have the reading from GM on what they pull??
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Old 04-20-2012, 09:43 AM   #2
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Should be pretty easy to find out from anyone with an ammeter and an LT1.
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Old 04-20-2012, 12:46 PM   #3
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At one point I know I saw numbers on what the primary and secondary fans on each of the b-body options pulls and I thought the "big" fans were 250ish watts. The b-bodies used a primary/secondary setup not high/lo
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Old 04-20-2012, 12:57 PM   #4
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yea guess i gotta measure it lol......was wondering if its been done figured save some time oh well.......ill report back with my findings just so the info is there.............reason im asking i want to tie my trans cooler fan in with them i dont feel like running more wiring and i wanna make sure my 30A relay covers both lol
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Old 04-20-2012, 10:30 PM   #5
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I measured the amps a long time ago and got ~3.35A on low speed and ~9.1A on high speed. Not sure about start-up amps.
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Old 04-21-2012, 03:43 PM   #6
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It has but I can't remember the site. See if you can google the truck forums since running dual lt1/ls1/ impala fans are very popular for them. I remember seeing a post and vid. the amps where small but I think when they first started they spiked pretty high over 20 amps for a sPlit second. I run lt1 fans on my silveraldo with 30amp relays on each . So far so good. About a year.
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Old 04-23-2012, 07:32 AM   #7
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ok cool good info.....im gonna measure them this week.....the fan i wanna wire in with them pulls only 5A.....should be ok sounds like it
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Old 04-24-2012, 02:15 PM   #8
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Keep us posted how you went about doing it and if it works fine. Have been wanting to do the same thing for quite some time but do not feel like running wires and a switch for it. Would be much easier to tap into main cooling fans.
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Old 04-24-2012, 03:21 PM   #9
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I'm interested in the cfm the stockers pulls.

Why are u switching fans ? I want to switch my dual lt1 for a single fan on 3.4 Camaro. Just for the weight savings . Allready have the 3.4 fan .
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Old 04-24-2012, 03:32 PM   #10
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no im not swtiching anything just adding a small 8" fan to my trans cooler
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Old 04-24-2012, 03:32 PM
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