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#476 |
Board Member
Join Date: Nov 2002
Location: elgin s.c. 29045
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![]() What ever way I decide to go with I think I want to put in a LED to show when it's on. Where would you wire it into on the 940 fan relay or fan wiring? I have a hard time trusting relays and electric fans but I like the idea of removing the mechanical fan.
l
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Charlie 85 244 TI B21FT 265K M46 |
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#477 | |
Is always busy
Join Date: Feb 2006
Location: Chapel Hill NC
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![]() Quote:
+ to fan(low speed) and ground between relay and saab t then another for the high speed i keep a spare relay in all my e fan cars, but they almost never fail , and ive never had a fan die, but have had em get noisy and replaced it cause the bearings were getting noisy Last edited by impolvo; 05-27-2012 at 02:33 PM.. |
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#478 |
Turbo, what?
Join Date: May 2004
Location: OR
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![]() For those people that have a two speed fan and are using the high speed setting, have you ever tried NOT using the high speed setting at all and not had good results?
I know on my measly N/A 240, the low speed is more than sufficient at all times that I've experienced, thus far. Then again, the car still has the factory pusher fan as well that comes on above a certain temp with the A/C, I think. To the person with an '84 240 turbo in the recent posts, there is no factory pusher fan on your car, to my knowledge. It sounds like someone already equipped your car with an e-fan of sorts to help keep it cool, or improve A/C operation. ![]()
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Kyle - NLMGG: '91 244 NA DD/Track - General Leif: '71 142 Endurance Racecar - Oregon Volvo Tuners? - For Sale? |
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#479 | |
Is always busy
Join Date: Feb 2006
Location: Chapel Hill NC
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#480 |
Board Member
Join Date: Nov 2007
Location: Toledo, OH
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![]() I know I'm missing something because the fan will only turn on when I have the + on the temp switch grounded.
![]() As this point, I'm ready to put the clutch fan back on until I can figure this out. I pulled the fan setup out of a late 960. |
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#481 | |
Is always busy
Join Date: Feb 2006
Location: Chapel Hill NC
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![]() Quote:
therefore the temp switch must ground #2 is high speed so relay 2--- to one prong on the temp switch-- the other prong on the switch to ground assuming its a 2 prong switch-- if not then 3rd prong ground if 3 prong then 1- to lower temp, 2 to upper |
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#482 | |
Board Member
Join Date: Feb 2005
Location: Maryville Tn
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joereese2 |
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#483 |
Turbo, what?
Join Date: May 2004
Location: OR
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#484 |
K-jet For Life
Join Date: Mar 2007
Location: - Stock PSI Or Bust -
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![]() E fans suck on turbo cars.
Get a tropical fan clutch. |
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#485 |
Board Member
Join Date: Jul 2007
Location: Los Angeles/Silverlake/A'dam
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![]() Why is that?
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Silver '89 780 Bertone Turbo: Bilsteins HD in the front, polly bushings, IPD 25mm sways in the front and 19mm in the rear, IPD lower and upper brace. |
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#486 |
K-jet For Life
Join Date: Mar 2007
Location: - Stock PSI Or Bust -
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![]() Heat soak from the turbo.
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#487 |
Board Member
Join Date: May 2012
Location: foresthill/sacramento
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![]() wtf heat soak from the turbo? what does that mean?
and where does one acquire said "tropical fan clutch"?!lol |
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#488 |
Board Member
Join Date: Nov 2009
Location: Surrey, UK
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![]() Heat soak is when the radiated and conducted heat from the turbo heats the rest of the engine bay to the point that performance is affected, especially the cylinder head, intake manifold and intercooler. The idea is that a mechanical fan keeps a constant stream of cooler air moving through the engine bay at all times, keeping underhood temperatures lower and more consistent, versus an electric fan which runs intermittently, allowing heat to build up in the engine bay.
The tropical fan clutch is for the standard mechanical fan intended for vehicles used in hotter climates, volvo part no. 1357433. I don't know that much about it, but I'd imagine it allows less slip and hold a higher fan speed than the standard clutch. |
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#489 | |
K-jet For Life
Join Date: Mar 2007
Location: - Stock PSI Or Bust -
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Or on a later 940 turbo. ![]() |
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#490 |
Turbo, what?
Join Date: May 2004
Location: OR
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![]() I thought all 940s had e-fans just like every other Volvo from 1992 and newer?
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#491 |
Board Member
Join Date: Nov 2008
Location: Mesa, AZ
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![]() All 92+ 7/9 had e-fans. As far as I know the tropical clutch was optional, but not standard on anything.
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![]() 1988 760 Turbo - garage queen, everlasting project also 2016 Ford Fiesta ST - size small daily 1995 Ford F150 - size large daily |
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#492 |
Board Member
Join Date: Nov 2009
Location: Surrey, UK
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![]() I guess it depends on the market, as a far as I know the e-fan wasn't standard on the 940 until later in production over here -I had a '94 940 with a mech fan on it from the factory. I have no idea if the fan clutch was the HD kind, though.
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#493 |
Bolbo Spotted
Join Date: Aug 2009
Location: Portland, Oregon
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![]() derp missed this part, the one I got at the jy is 115/110...
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#494 | |
Back from the DEAD
Join Date: Jan 2011
Location: Central OR Coast
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I think you can use the one in the top of the HD radiators (it's an 87C-92C), which can be found throughout the yards if you don't have one in place already.
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My Blue 1986 245DL Pdx240 feedback http://forums.turbobricks.com/showth...ghlight=Pdx240 ------------------------------------------------------- |
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#495 |
Turbo, what?
Join Date: May 2004
Location: OR
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![]() That one allows the car to get too hot before it kicks on. If you were building a car for fuel efficiency and were able to run it that hot with a higher temp thermostat(I typically run an 87 degree), then it might work, but for normal use having it kick on that late can allow detonation if your car is set up pretty aggressively. It'll be over halfway up the gauge before it turns on. I use the 82/87 switch in that location and it works GREAT.
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#496 |
Is always busy
Join Date: Feb 2006
Location: Chapel Hill NC
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![]() 92-87 works great in my cars
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#497 | |
Bolbo Spotted
Join Date: Aug 2009
Location: Portland, Oregon
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#498 |
Board Member
Join Date: Jan 2011
Location: San Diego
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![]() Good timing, I just picked up an electric fan to install in my '91 940se (turbo). I'm hearing from the discussion here that maybe it's a bad idea to put an electric fan in a turbo? Where I live in San Diego it reaches 100 degrees a few times each summer, and I use the a/c. My car severely lacks power, and I'm doing everything I can to boost power (don't ask, I've already tried everything to get it back to stock power before mod'ing it). I know the electric fan will improve fuel efficiency, but also improve power a bit I imagine?
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#499 | |
Turbo, what?
Join Date: May 2004
Location: OR
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![]() Yes, as long as you have something else triggering the low speed at a more appropriate temperature. It would at least keep you from blowing the motor due to forgetting to turn on a switch if you don't actually wire it up to come on automatically.
![]() The downside to running straight high speed over using the low speed first is that it puts a pretty good strain on the wiring/relay/fuse when it goes from being off to high speed. It may not be a big deal, but still. Quote:
I don't live in a hot climate, but all new Volvos come only with e-fans that are NOT on all the time. If you use the A/C, the fans will typically run, but not even all the time, still. |
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#500 |
Board Member
Join Date: Aug 2005
Location: So Cal
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![]() so i have a flexalite lowboy 16" in the stock mechanical fan shroud on my 940 (yes 91 940's came with mechanical fans)
my only issue with this fan is quality. problem is fitment requires a thin fan... dont really want to ditch the NPR and change over to the later radiator...just wish there was a good thin fan that fit between the radiator and the waterpump pulley. |
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