which electric fan?

mk3teen · 01-14-2010, 06:33 PM

quick question, i heard somewhere that later year mk3s came with dual electric fans, is this true?

cre · 01-14-2010, 06:35 PM

Quote:

Originally Posted by mk3teen

quick question, i heard somewhere that later year mk3s came with dual electric fans, is this true?

Yes and no. That refers to the auxiliary units only (the small fan(s) beside the main fan).

mk3teen · 01-14-2010, 06:38 PM

my 89 has the 2 little fans but i waas wondering about the main fan, was it electrical or still clutch?

cre · 01-14-2010, 06:56 PM

I already answered that.... ONLY THE AUX FANS.... sheesh.

Personally, I don't recommend electric fans. Flex fans place as much resistance on the engine as the additional load on the alternator does and are less likely to fail; Not to mention that it seems MKIII owners have a lot of trouble getting electric fans installed properly, for whatever reason.

One final note, if you do go with electric fans the A/C aux fans' thermostatic switch does not close until about 225?F; this is too high for a primary fan and is a likely cause of many of the failures owners have seen.... well, that and an amazing wire a fan correctly.

mk3teen · 01-14-2010, 07:00 PM

srry didnt understand first time, ive also heard something about a racing fan, the clutch fan but aluminum with diffrent blades or somthing like tht, wat can u tell me about tht?

cre · 01-14-2010, 07:02 PM

That would be a flex fan. At higher speeds the blades flatten out reducing resistance while still moving more air. You MUST use a fan clutch built for it though, the stock fan clutch will spin it fast enough to send the blades out through the hood or through a coolant hose.

IMO, you should upgrade your radiator before switching to either setup.

ddmcse · 01-15-2010, 02:54 AM

I've run mine for years , a good fan comes with it's own thermostat to turn it on and off and you will gain HorsepPower . put it behind a high performance aluminum radiator and you've got one Cool Supra . driving around on back roads just cruising i run @ 160 degrees a little cool but making heat in a turbo'd supra is not difficult . an accurate temp gauge is a must . you want to talk about squeezing every bit of hp out of your car this is one area to look at.

oh btw i didn't have any electrical 8-) issues i.e. draw on the alternator

01-14-2010, 06:56 PM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	I already answered that.... ONLY THE AUX FANS.... sheesh. Personally, I don't recommend electric fans. Flex fans place as much resistance on the engine as the additional load on the alternator does and are less likely to fail; Not to mention that it seems MKIII owners have a lot of trouble getting electric fans installed properly, for whatever reason. One final note, if you do go with electric fans the A/C aux fans' thermostatic switch does not close until about 225?F; this is too high for a primary fan and is a likely cause of many of the failures owners have seen.... well, that and an amazing wire a fan correctly. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-14-2010, 07:02 PM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	That would be a flex fan. At higher speeds the blades flatten out reducing resistance while still moving more air. You MUST use a fan clutch built for it though, the stock fan clutch will spin it fast enough to send the blades out through the hood or through a coolant hose. IMO, you should upgrade your radiator before switching to either setup. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-15-2010, 02:54 AM	#7
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	I highly recommend an electric fan I've run mine for years , a good fan comes with it's own thermostat to turn it on and off and you will gain HorsepPower . put it behind a high performance aluminum radiator and you've got one Cool Supra . driving around on back roads just cruising i run @ 160 degrees a little cool but making heat in a turbo'd supra is not difficult . an accurate temp gauge is a must . you want to talk about squeezing every bit of hp out of your car this is one area to look at. oh btw i didn't have any electrical 8-) issues i.e. draw on the alternator __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS Last edited by ddmcse; 01-15-2010 at 03:26 AM. Reason: added info

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01-14-2010, 06:33 PM	#1
mk3teen 3" Exhaust Join Date: May 2009 Location: Texas Posts: 50	quick question, i heard somewhere that later year mk3s came with dual electric fans, is this true?

01-14-2010, 06:38 PM	#3
mk3teen 3" Exhaust Join Date: May 2009 Location: Texas Posts: 50	my 89 has the 2 little fans but i waas wondering about the main fan, was it electrical or still clutch?

01-14-2010, 07:00 PM	#5
mk3teen 3" Exhaust Join Date: May 2009 Location: Texas Posts: 50	srry didnt understand first time, ive also heard something about a racing fan, the clutch fan but aluminum with diffrent blades or somthing like tht, wat can u tell me about tht?