Diameter of stock Fan shroud opening

dstephns

dstephns

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CAT Member
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The title says it all. I need to know the diameter of the opening for a stock
fan shroud. I am looking for a little more air movement here in Phoenix and looking at fans. I'd measure my own car but currently getting repainted.
Thanks
Dave
 
Last edited:
Buy this fan. Derale 17515.

http://derale.com/products/belt-driven-fans/rigid-race-fans/aluminum-blade-standard-rotation

You will need to trim a little bit off the outer radius on the radiator side of the fan.

This thing move so much air it is incredible.

I have a fiberglass LAT hood. Revving the engine makes the corners of the hood flex up.

When the revs come up it sounds more like a Cessna on a takeoff roll than a car.


I also tried a 17015 Flex fan. This one moves a lot of air and it has really good radiator clearance. But the back edge of the fan hits the top radiator hose so I had to rig up a way to pull the hose rearward.
 
I've had a 5 blade flex fan since I bought my car.. works fine. I think it's only about 13" though... I got a similar 7 blade fan with a parts buy a few years ago and have never tried it. It's also 13" No idea who made them though...
 
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