So thinking about swap out viscous fan for an electronic fan but getting mixed info from the local workshops, the biggest concern is that the electronic fan pulls less air through and potentially resulting in overheating the motor. Is anyone running an electronic fan?
"So thinking about swap out viscous fan for an electronic fan." What makes you think this could be a good idea? "The biggest concern is that the electronic fan pulls less air through and potentially resulting in overheating the motor." This has been discussed numerous times on this forum. Use the SEARCH button!
I have had mine in for a good while now. I went the Ford OEM fan route using the OEM Auxiliary fan wiring and upgraded some wiring and the high speed relay. Then used Nistune to control the fan.
Do a search on it. This has been covered so many times. Most would suggest sticking with the stock clutch fan. If it ain't broke, don't fix it...
Can't really beat the shroud/viscous combo. Many alternatives have been put forth, but personally I would stick with the stock setup. Not worth an engine.
I tried to make it work for months, but unsuccessfully. This was with a SPAL 3000CFM fan, no shroud. I had issues with the original thermo switch and ended up creating a toggle switch and ran it constant. With a vented nose, bonnet, undertray and FMIC, temps would always start to creep up after the car was under load for sustained periods. Made it difficult to enjoy the car as I'd always be keeping an eye on water temperatures. Sometimes up to low to mid 90's in hot weather before I started to back off. Switched back to clutch fan with upgraded fluid and never see temps over 85 degrees, even on 40 degree days.
to jump on the bandwagon. Some of the oldest members, knowledgeable , most experienced, hardest pushed or powerful machine owners are in unison on this topic. DON'T DO IT
Unless of course it's an NA with no AC that gets driven down to the local cafe once a week, could probably get away with it for that. Or if you happen to live in Canada or Iceland or something.
Canada actualy has some very warm areas in their summer - my sister is in alberta and has 40*c summer days just like here, the flip side is she has -30*c winters
The original front bar doesn't give much airflow while moving below 70km/h (compared to a 1999-2000 spec front bar) so you still need that shroud and big stock fan spinning to suck any air through the radiator. I even use a thicker diff oil in the fan clutch and my NoTurbo temps are 83 Celsius and up to 91 Celsius with aircon in Logan area traffic. I have tried different thickness oil in fan clutch and different plastic fan to achieve better fuel economy and quieter sound, but one very hot day in Logan Area and my warning light came on at 95 Celsius. Unless you spend big $$$ on front airflow and bigger radiator, there hasn't been any alternative solution to Stock Fan and Fan Clutch during Australian summer.
Does anyone else notice their stock fan is very loud once the car is up to temp and driving? It appears to be working correctly but the 'roar' is very noticeable in the cabin with the windows up/aircon on. 'Roar' goes up and down with rpm.
Probably means you're running hot, get a proper temp gauge/probe or check with ECUtalk/consult. They are designed to lock up over a certain temp to help cool it down under high load conditions but shouldn't do it every trip.
Also 'locks up' for the first minute or so after a cold start and then slows down. Will check temperatures but Im starting to think someone has tempered with it.
I'm also getting noise from my fan clutch Even at seemingly normal operating temps, fan clutch roar is noticeably audible. Never used to notice this in the past (with the same engine in a different chassis - you can search the forums under my name to find out what happened to the last chassis.... ) Fan clutch is a new OEM unit with new fan blade less than a year old. Old fan clutch was also making noise prior to replacement. Car has a large aluminium radiator (from Carcraze) with OEM lower and upper shrouds, silicon upper/lower hoses, 50/50 coolant mix, bled well, overflow well filled. No leaks anywhere and no head gasket problems (engine has less than 20k km on it from a fresh build). Engine is definitely running slightly higher temps than what I am used to. Without AC around 80-89 normally and with AC on etc it's getting on the hotter site 90-100 on very warm days (~40C). Have seen once 105C with AC on an extremely hard/long run at 40C ambient. I am wondering if it's possibly a some debris/blockage in the AC condenser fins since the problem seems that much worse with the AC on and temps seem mostly normal without. Does anyone know the average coolant temp at which the viscous fan is is normally starting to make noticeable noise? If anyone has any ideas on this, I'd be keen to hear. -ltd
