Magnuson Supercharger, Valve Train and other supporting mods. 2007-2013, 5.3L Chevy Tahoe

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kbuskill

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Chrismnj

Chrismnj

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Does anyone knows the CFM rating of stock 2012 tahoe radiator fans?
 
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Chrismnj

Chrismnj

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Just trying to find out if its beneficial to change them, last think I wanna do is to replace with less efficient.
 

mikeyss

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My 09 L9H Tahoe surprisingly didn't have the K5L option, even though it has the external trans, oil, and power steering coolers. I did upgrade my efans, I swapped my efans for the ones that come with the 2012 K5L package. Now, When my fans are on hi, I swear it will suck my shirt off when I'm standing in front of it.

Since I got my BBP tune, they come on low speed sooner than stock, and in summer they run on high speed more often, which is good IMO, keeps the A/C and engine temps lower that way.
 

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