NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   3rd Generation Specific (https://www.nopistons.com/3rd-generation-specific-18/)
-   -   Cooling Fan Upgrade (https://www.nopistons.com/3rd-generation-specific-18/cooling-fan-upgrade-25069/)

DuMaurier 7 09-19-2003 07:25 PM

Has any one replaced the stock fans with aftermarket upgraded ones ? , if so how much was it , what type , specs . etc.

I may have to replace mine since the blades were damaged on one and I am expecting to generate a lot of heat soon. https://www.nopistons.com/forums/pub...IR#>/smile.png

moehler 09-19-2003 08:18 PM

Although I have no experience with aftermarket fans, I've read that the OEM fans are very good, high flowing, fans and that there is no need for aftermarket ones.

9BASE3 09-19-2003 08:24 PM

Vosko has an aftermarket fan... Not sure which one though...

RX73rdgen 09-19-2003 08:39 PM

yeah... I would agree that replacing the stock fans with aftermarket fans would have not benefit. My experience with aftermarket electric fans has not been good. Stay factory. They are more reliable and plenty strong enough.

duboisr 09-19-2003 09:42 PM

use the stock fan motors with two stock 4 blade fans . Toss the 5 bladed fan, a new 4 blade fan is about $ 34 from the dealer .Garfinkle has done this several times with out hearing the harmonic thumping that the 4-5 blade is to stop .Two 4 blades flow more air than 4-5 blade set up .

jspecracer7 09-19-2003 10:02 PM

Prove to me that the 4 blade flows more air.

rotary speedster 09-20-2003 12:57 AM


Originally Posted by duboisr' date='Sep 19 2003, 08:42 PM
use the stock fan motors with two stock 4 blade fans . Toss the 5 bladed fan, a new 4 blade fan is about $ 34 from the dealer .Garfinkle has done this several times with out hearing the harmonic thumping that the 4-5 blade is to stop .Two 4 blades flow more air than 4-5 blade set up .

Garfinkle this..Garfinkle that. https://www.nopistons.com/forums/pub...IR#>/wacko.png https://www.nopistons.com/forums/pub...closedeyes.gif





I suggest upgrading the radiator before spending money on fans.

vosko 09-20-2003 10:28 AM

i have FAL dual 12" fans.... works great..... 210F when beating the crap out of it for extended periods. i want to upgrade the oil cooler..... should lower temps even more

DuMaurier 7 09-20-2003 01:59 PM

I am upgrading to the KOYO rad . I want / wanted to do the fans at the same time , Is that 4 blade fan thing true ?

Silver Ninety Three 09-20-2003 06:48 PM

I bought a used 4 bladed fan. Haven't installed yet, but I hear alot of autox and road race guy use this trick to move more air through the radiator.


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