Which Fan To Use? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

JacksonBrown · 07-02-2012, 04:13 PM

Setup:

Chassis: S14
Motor: S14 SR20det
Radiator: Koyo S14 SR20det
Shroud: S14 SR20det
Clutch Fan: RB25det

For 4 years I was running an aftermarket electric fan on my radiator that was ziptied into the core. Part of the core failed, so instead of welding that part off, I purchased a new Koyo. This time I didn't re-install the aftermarket electric fan because I didn't want to risk it compromising the core over time (which is what I think was the culprit the first time around).

So, the question is:

Which fan, KA24de or SR, can I run on the radiator that bolts onto it without having to run zipties into the radiator?

Thanks in advance.

zero.counter · 07-02-2012, 04:33 PM

KA Stock clutch fan is fine (research as this has been debated quite a few times in the last decade)

If you decide to go back to electric, the FAL model 345 fits the Koyo.

345 Nissan 240SX Dual Electric Fan

Been running on mine since 2005. Solder/heat shrink is of the utmost importance.

JacksonBrown · 07-02-2012, 09:10 PM

Thanks for the info - yeah, I've seen the debate back and forth over the years but never paid it much mind since my electric fan was ostensibly functioning correctly. My question/concern with running an FAL set up is that, at high speeds/freeway, the fans getting in the way of the natural air flow to the radiator. I suppose I could put a switch on it to turn off though. Hmmmm..

07-02-2012, 04:13 PM	#1
JacksonBrown Zilvia Member Join Date: Aug 2007 Location: recliner of rage Posts: 211 Trader Rating: (0) Feedback Score: 0 reviews	Which Fan To Use? Setup: Chassis: S14 Motor: S14 SR20det Radiator: Koyo S14 SR20det Shroud: S14 SR20det Clutch Fan: RB25det For 4 years I was running an aftermarket electric fan on my radiator that was ziptied into the core. Part of the core failed, so instead of welding that part off, I purchased a new Koyo. This time I didn't re-install the aftermarket electric fan because I didn't want to risk it compromising the core over time (which is what I think was the culprit the first time around). So, the question is: Which fan, KA24de or SR, can I run on the radiator that bolts onto it without having to run zipties into the radiator? Thanks in advance.

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07-02-2012, 04:33 PM	#2
zero.counter Nissanaholic! Join Date: Jun 2003 Location: At work Age: 36 Posts: 2,001 Trader Rating: (0) Feedback Score: 0 reviews	KA Stock clutch fan is fine (research as this has been debated quite a few times in the last decade) If you decide to go back to electric, the FAL model 345 fits the Koyo. 345 Nissan 240SX Dual Electric Fan Been running on mine since 2005. Solder/heat shrink is of the utmost importance.

07-02-2012, 09:10 PM	#3
JacksonBrown Zilvia Member Join Date: Aug 2007 Location: recliner of rage Posts: 211 Trader Rating: (0) Feedback Score: 0 reviews	Thanks for the info - yeah, I've seen the debate back and forth over the years but never paid it much mind since my electric fan was ostensibly functioning correctly. My question/concern with running an FAL set up is that, at high speeds/freeway, the fans getting in the way of the natural air flow to the radiator. I suppose I could put a switch on it to turn off though. Hmmmm..

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