Electric Fan Upgrade Recommendations

DiscoJax · 09-04-2023, 06:11 PM

2005 Z4 3.0L with a Vortech 3si supercharger. I am working on a getting it custom tuned and adding headers so it will be generating a lot more heat. I have already replaced the radiator, expansion tank and added a high flow water pump.

I am interested in replacing the OEM electric fan with a higher performance fan. Anyone have recommendations? Looking for something that would be relatively plug and play and would just upgrade the CFM.

grannyknot · 09-05-2023, 04:45 AM

I don't have a fan recommendation but WaterWetter will give you a few more degrees to play with. https://perryautolaval.com/products/...SABEgLpdvD_BwE

pokeybritches · 09-05-2023, 12:31 PM

You shouldn’t need to replace the electric fan unless it’s inoperable or you are having heat issues at idle. A CSF radiator will do more for you while moving. It may be possible to adjust the thermostat to open earlier to keep temperatures low, but this is more of a novelty that doesn’t do a whole lot IMHO.

The headers will actually generate less heat since you will no longer have the hot catalysts next to the engine.

DiscoJax · 09-05-2023, 12:59 PM

Awesome! I appreciate the feedback Pokey!

09-04-2023, 06:11 PM	#1
DiscoJax Enlisted Member 8 Rep 40 Posts Drives: 2005 BMW Z4 3.0i Join Date: Jun 2022 Location: Jacksonville iTrader: (0)	Electric Fan Upgrade Recommendations 2005 Z4 3.0L with a Vortech 3si supercharger. I am working on a getting it custom tuned and adding headers so it will be generating a lot more heat. I have already replaced the radiator, expansion tank and added a high flow water pump. I am interested in replacing the OEM electric fan with a higher performance fan. Anyone have recommendations? Looking for something that would be relatively plug and play and would just upgrade the CFM.
	Appreciate 0 Tweet Quote

09-05-2023, 04:45 AM	#2
grannyknot Captain 952 Rep 781 Posts Drives: 2008 Z4M coupe Join Date: Oct 2021 Location: toronto iTrader: (0)	I don't have a fan recommendation but WaterWetter will give you a few more degrees to play with. https://perryautolaval.com/products/...SABEgLpdvD_BwE __________________ 2008 E86 M coupe
	Appreciate 0 Quote

09-05-2023, 12:31 PM	#3
pokeybritches Colonel 479 Rep 2,782 Posts Drives: ESS/G-Power Z4M, VF Z4, 996tt Join Date: Sep 2009 Location: Los Angeles iTrader: (12) Garage List 2006 BMW Z4M [10.00] 2006 BMW Z4M [8.50] 2003 BMW Z4 3.0i [9.00]	You shouldn’t need to replace the electric fan unless it’s inoperable or you are having heat issues at idle. A CSF radiator will do more for you while moving. It may be possible to adjust the thermostat to open earlier to keep temperatures low, but this is more of a novelty that doesn’t do a whole lot IMHO. The headers will actually generate less heat since you will no longer have the hot catalysts next to the engine. __________________ VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
	Appreciate 0 Quote

09-05-2023, 12:59 PM	#4
DiscoJax Enlisted Member 8 Rep 40 Posts Drives: 2005 BMW Z4 3.0i Join Date: Jun 2022 Location: Jacksonville iTrader: (0)	Awesome! I appreciate the feedback Pokey!
	Appreciate 0 Quote