Nate J.
(oOO\ (|||)º(|||) /OOo)
Titanium Silver/Black Nappa Full 07-18-2001 E39 M5 Heritage (BZ99672). 198,000mi+. Increasing daily. Engine rebuild thread.
(eŌō\ (||||)º(||||) / ōŌe)
Alpineweiss III/Black Merino Full 03-26-2007 E60 M5 Manual (CX08265). 157,000+. Dead starter -_-
RIP, Seabiscuit. Black Sapphire/Schwarz 03-11-2003 530iA Sport (CK39185). T-boned 03-01-2017 at 155,861mi.
Take 2 "Otto" - Toledo Blue/Sandbeige 04-25-2002 530iA Sport (CH98032). Sold 11-10-2017 at 147,743mi.
Take 3 "Manuel" - Toledo Blue/Grau 10-29-2001 530i5 Sport (CE92358). Sold 02-01-2019 at 217,600mi. I regret that. Build Log
Reliable P.O.S. - Green/gray 1995 Camry V6 LE. 270k mi. Sold for space.
Maybe cropduster isn't quite apt; the sound from my car was more like someone left an industrial leaf blower running under the hood. My viscous clutch was actually a new Behr BMW unit. I think it was even louder than the old one it replaced. I guess my real concern now is whether the alternator can actually take the load of running two electric fans ... The Summit Racing one I installed a few years back to replace the viscous is the same one 16valex and jstern have in their sixes, don't remember the model # offhand but it has always worked well and gets the engine compartment back below the threshold temp fairly quick, so even if it does put some load on the alt, it isn't usually for very long ....
Mine did it when I was living in MA, low 90's and it was LOUD.
Man, I guess I've been without my clutch fan for a long time, clearly I've forgotten how loud the suckers are! Or, the other possibility, the NASCAR-esque sounding exhaust that was on my car when I bought it was just so loud that it overpowered the fan sound.
I use the Summit 16" with curved blades and aux. I see no issue with the alternator when both are at full tilt and AC blasting.
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
2003 M3CicM6 TiAg
2002 540iT Sport Vortech S/C 6MT LSD TiAg
2008 Audi A3 2.0T DSG (the daily beater)
2014 BMW X1 xDrive28i (wifemobile)
Former:
1985 MB Euro graymarket 300SL
1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)
Though my fan also sounds like a corp duster but I have determined that the fan clutch works properly, I am in the middle of doing electric fan conversion.
Yeah, even a properly running clutch fan will engage tightly when it gets hot out. They do get loud. I love my dual electric set up with PWM on the puller and lower temp 318 switch on the aux. Great set up with my lower temp stat to keep rad exit temps in the proper range. With the Evans coolant in the rad and loose cap (no pressure) I have not touched nor worried about my cooling system in many years.
98 540i 6, 525 whp, 120 mph 1/4, V3 Si S/C'er @16 psi, W/A I/C, Water/Meth, Supersprint Headers, HJS Cats, 3" Custom Exhaust, UUC Twin Disc, Wavetrac LSD, GC Coil Overs, Monoball TA, AEM FP, Aeromotive FPR, AEM Failsafe AFR/Boost, Style 65's w/275's, M5 Steering Box, Eibach Sways, M3 Shifter, Evans Coolant, 85 Deg Stat, PWM Fan, 10" Subs, B.A. speakers, Grom Aux/BT, Still Rolling as my DD!
More heatwave today.
GG-pooch was under the weather and so we had to sit in the car w/ AC waiting for the vet to have a window for us.
Despite the felonious erroneous claims of posers pretending to have had zillions of M62TU's none of which ever had an Aux fan that worked...
This is what a proper working / maintained M652TU should be capable of handling, Aux-only.
At time pic had been taken, car had been driven in same conditions in stop/go traffic for :15mins, then had sat there in full sun baking parking lot w/ MAX AC on for another :15... After pic was taken, car sat like this running for another :20.
2003 M3CicM6 TiAg
2002 540iT Sport Vortech S/C 6MT LSD TiAg
2008 Audi A3 2.0T DSG (the daily beater)
2014 BMW X1 xDrive28i (wifemobile)
Former:
1985 MB Euro graymarket 300SL
1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)
LIAR!!!!
Sorry to hear about the pooch, BTW.
Poor dog, sorry to hear your’s is under the weather.
Did you look at the Ktemp? Just curious what it was.
To update my earlier search for the single speed mk8/Taurus fan info for anyone wondering. The motor does not have any internal speed controller to input the DME signal to. Which leaves aftermarket controllers that appear to be spotty on reliability/ longevity.
I have found that the e46 manual cars came with an electric fan and and external controller. Both the e39 aux fan and the single puller in the e46 use 50 amp relays and have similar wire size (4 vs 6 mm^2) I’m considering finding a used fan and harvesting the controler to use for my setup. What do you guys think?
Nate J.
(oOO\ (|||)º(|||) /OOo)
Titanium Silver/Black Nappa Full 07-18-2001 E39 M5 Heritage (BZ99672). 198,000mi+. Increasing daily. Engine rebuild thread.
(eŌō\ (||||)º(||||) / ōŌe)
Alpineweiss III/Black Merino Full 03-26-2007 E60 M5 Manual (CX08265). 157,000+. Dead starter -_-
RIP, Seabiscuit. Black Sapphire/Schwarz 03-11-2003 530iA Sport (CK39185). T-boned 03-01-2017 at 155,861mi.
Take 2 "Otto" - Toledo Blue/Sandbeige 04-25-2002 530iA Sport (CH98032). Sold 11-10-2017 at 147,743mi.
Take 3 "Manuel" - Toledo Blue/Grau 10-29-2001 530i5 Sport (CE92358). Sold 02-01-2019 at 217,600mi. I regret that. Build Log
Reliable P.O.S. - Green/gray 1995 Camry V6 LE. 270k mi. Sold for space.
You could also fabricate a power module for a "taurus type" (aka any simple direct driven fan) that took the factory PWM inputs, and handled the power out. It wouldn't be much more than a big ass MOSFET probably then a very few supporting parts for stability and flyback.
2003 M3CicM6 TiAg
2002 540iT Sport Vortech S/C 6MT LSD TiAg
2008 Audi A3 2.0T DSG (the daily beater)
2014 BMW X1 xDrive28i (wifemobile)
Former:
1985 MB Euro graymarket 300SL
1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)
As it is, I see no reason to mess with the factory auxiliary fan, and adding a secondary fan that is discrete from the other systems isn't too challenging.
Nate J.
(oOO\ (|||)º(|||) /OOo)
Titanium Silver/Black Nappa Full 07-18-2001 E39 M5 Heritage (BZ99672). 198,000mi+. Increasing daily. Engine rebuild thread.
(eŌō\ (||||)º(||||) / ōŌe)
Alpineweiss III/Black Merino Full 03-26-2007 E60 M5 Manual (CX08265). 157,000+. Dead starter -_-
RIP, Seabiscuit. Black Sapphire/Schwarz 03-11-2003 530iA Sport (CK39185). T-boned 03-01-2017 at 155,861mi.
Take 2 "Otto" - Toledo Blue/Sandbeige 04-25-2002 530iA Sport (CH98032). Sold 11-10-2017 at 147,743mi.
Take 3 "Manuel" - Toledo Blue/Grau 10-29-2001 530i5 Sport (CE92358). Sold 02-01-2019 at 217,600mi. I regret that. Build Log
Reliable P.O.S. - Green/gray 1995 Camry V6 LE. 270k mi. Sold for space.
GG, thanks for letting me add/highjack your thread a little, It’s much appreciated.
Nate, awesome to know that you’ve done this, and I agree with you that the aux fan is great as is and this thread proves nicely. My only reason for wanting the single puller setup is for air to air intercooler clearance behind the front bumper.
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