3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

Installing a flex fan???

Old Mar 21, 2005 | 06:47 PM
  #1  
streetheatz28's Avatar
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Question Installing a flex fan???

my electric fan stopped working so i bought a flex fan from autozone when i put the fan on it hits the pulleys.... is there anything avalible a spacer and longer bolts???
Old Mar 21, 2005 | 07:29 PM
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Re: Installing a flex fan???

Just fix your stock fan. The worst possible case is that the motor and relay are both shot, in which case you'd run about $50-60 for parts. I know the flexfan is at least $35, plus getting it to bolt up, and it'll cost you horsepower as well. And did you get the correct fan? If you have a serpentine belt you have to have a "reverse rotation" fan, or it won't work anyway.

Then there's the fitment issue. You should be able to order a spacer from the store where you got the fan, but I doubt they'll have one in stock. Then, once you get it on, you'll need to fabricate a fan shroud so that it will actually pull air through the radiator instead of around it. Make sure the fan isn't too big as it could hit the hood.

You're looking at putting a LOT of work into a major downgrade.....don't do it man.
Old Mar 21, 2005 | 08:37 PM
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Re: Installing a flex fan???

They are also very loud, and sharp. I second keeping the electric fan setup, but if you must run the flex fan aluminum spacers that fit over the snout of the water pump are pretty easy to find at parts stores, and a junkyard camaro can supply you with a shroud.
Old Mar 21, 2005 | 11:38 PM
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Re: Installing a flex fan???

if your gonna spend 60 on parts to fix your stock fan why dont you just buy a new aftermarket fan? heres a nice inexpensive fan for cheap off of jegs, would be better than stock fan

http://www.jegs.com/cgi-bin/ncommerc...04&prmenbr=361
Old Mar 22, 2005 | 12:16 PM
  #5  
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Re: Installing a flex fan???

Except that it's thinner, which means less blade surface area, which means less air movement. You'd also have to come up with your own mounting arrangement, unless you LIKE the "wire-tie between the radiator fins" method that they use out-of-the-box. You also have to take the radiator halfway out of the car to get those wire-tie mounts in place.

In order to get something that will actually cool the engine better, you'd have to spend more than fixing the stocker. The stocker is plenty adequate for most street engines.

Like I said, 60 is a high estimate. You can get a stock fan motor (the most likely issue) for like $35-40 from any given parts store. You can't get parts for aftermarket fans.....if it ever quits you have to replae the whole assembly.

Last edited by TheGreatJ; Mar 22, 2005 at 12:18 PM.
Old Mar 22, 2005 | 12:19 PM
  #6  
Tru2Chevy's Avatar
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Re: Installing a flex fan???

Those are thinner, however they also have 10 blades instead of the stock 5 or 6 (don't remember). Does anyone know how many cfm the stock single electric can move?

- Justin
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