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Electric fan for 02 silverado

This is a discussion on Electric fan for 02 silverado within the Performance forums, part of the General Discussion category; I have recently been informed that an electric fan would be a good choice for some hp and mpg. any ...

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    Electric fan for 02 silverado


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    I have recently been informed that an electric fan would be a good choice for some hp and mpg. any ideas on a good priced fan. andhow many CFM's should i be looking for minimum.?

  2. #2
    Registered User bobfig's Avatar
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    Re: Electric fan for 02 silverado

    you want a good 3500cfm to cool a v8 and more near 4000cfm if you want ac also. the 3 ways most people go is with a LS1/LT1 fan that fits over a 28" rad, a ford taurus/mark VIII fan that fits over a 28" rad and is also 2 speed but sucks a lot of amps, or upgrade to a 05 rad and fans that should be close to stock fit.
    05 Silverado 1500 CCSB - Airaid MIT, Black Bear Tune, and Magnaflow 12259, Tru-Cool 40k, Vette Servo
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    Re: Electric fan for 02 silverado

    Flexalite makes a dual electric fan, I can get one at a local parts store for $450, not sure what the cfm is though

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    Funny? Funny how? Rye 21's Avatar
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    Re: Electric fan for 02 silverado

    Quote Originally Posted by 2500hdSierra View Post
    Flexalite makes a dual electric fan, I can get one at a local parts store for $450, not sure what the cfm is though
    Jesus thats some serious cash for a fan!

    Either go with the Mark VIII fan, or go grab a LS1 setup out of a junkyard.
    1999 Sierra 6" lift, 3" BL, 37x13.50 Baja Claws

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    Re: Electric fan for 02 silverado

    Quote Originally Posted by 2500hdSierra View Post
    Flexalite makes a dual electric fan, I can get one at a local parts store for $450, not sure what the cfm is though
    dont do that, you can have 2 ls1 fans and a controller for half that. Go to the junkyard or search ebay!

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    Registered User kvpaintbal's Avatar
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    Re: Electric fan for 02 silverado

    Yeah don't do tht... just wanted to mention I had ls1 efans with blackbear harness never hada prob!
    94 chevy stepside, 20" V-Line wheels, Rollpan, bedcover, JVC deck, Kicker subs, True dual 40 flowmaster exhaust

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    Registered User Benny00Z71's Avatar
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    Re: Electric fan for 02 silverado

    -SOLD-2000 Silverado 5.3L ECSB, Z71, Corsa Catback, Vette Servo, 4500K HIDs
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    Registered User BigBlockChucky's Avatar
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    Re: Electric fan for 02 silverado

    Can you program the ecm to turn the fans on and off? or do you need its own controller?
    I would be interested in doing this to my 8.1

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    Re: Electric fan for 02 silverado

    The ECM can be enabled to turn on one or two electric fans. The PCM provides the ground trigger for the fan relay/relays.

    Jeff
    98 GMC RCSB 1/2 ton 2wd, 100% internally stock 305,4L80e,Ramjet intake,60lb inj, E-85.Twin T-3 junkyard turbos,12200411 PCM,24x CNP. 4675lbs w/me in it. Best time on 5 passes 13.01@110

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    Registered User Benny00Z71's Avatar
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    Re: Electric fan for 02 silverado

    You can have the ECM do it, or buy a separate controller
    -SOLD-2000 Silverado 5.3L ECSB, Z71, Corsa Catback, Vette Servo, 4500K HIDs
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    loves Mickie James oldred95's Avatar
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    Re: Electric fan for 02 silverado

    I bought a new 34 inch two row core radiator from radiator express and new Dorman 07+ fans for mine. I had about 425-450 in everything including the harness from Black Bear. The LS1 fans do work but they are not a direct bolt on and do not look stock, original, and clean IMO. There was more than one day I let mine set and idle in the 110+ degree heat with the AC going full tilt blowing 38 degree air and the engine never got over 200 degrees and thats with the fans running on low. The 34 inch fans move a TON of air.

    On my 95 its got a fan shroud off a 2007 Tahoe and it had Jeep Grand Cherokee fan motors (direct bolt in but not as much power) and a 5 and 7 blade fans. Because of the engine I'm going with I decided to finally improve on this. I bought the genuine GM fan motors for it, the parts catalog lists them as 700 watts but that doesn't make any sense but its an upgrade over the rated 500 watt motors, and 9 blade fans. I fully anticipate freezing my frijoles off even if I set and idle in the middle of death valley during a heat wave.
    1995 Silverado - ported vortec heads, 4L80E, efans, LT4 Hot Cam, Rear disc brake conversion w/drilled and slotted rotors
    1999 NBS Silverdo - transgo HD2 shift kit, 3 inch dynomax ultra flow, Ford keys and 305/70-16 Mickey ATZs

 

 

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