The Authoritative Galant VR-4 Resource

Join the best E39A 1991-1992 Mitsubishi Galant VR-4 community and document your GVR4 journey.

  • Software Upgraded - Reset Your Password to Login
    In order to log in after the forum software change, you need to reset your password. If you don't have access to the email address you used to register your GVR4.org account, you won't be able to reset your password. In that case, follow the instructions here to regain access to the forum.

recommend me an awesome slimfan...

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,971
Location
Yakima, WA
So I reinstalled my OE 190 thermostat, pulled the radiator out of the car and flushed it out, then used this nice non-spill funnel to refill with coolant and to burp the cooling system of all air. It worked great, BTW. While driving, after fully warmed up, my coolant temps stay between 196-203. Even after doing WOT pulls as long as the car is in motion, coolant temps stay in check. When in traffic and stopped, it creeps up to 213-216. This is in 70 degree weather. I'm thinking I need to replace my current slim fan with something that flows more or is of better quality.

It needs to attach to the stock radiator and clear my 4" intake pipe. Or maybe I need a fan switch that comes on sooner, as I think the factory one comes on at 206? Any suggestions?
 
Last edited:

turbohf

Well-known member
Joined
Nov 18, 2011
Messages
540
Location
Lake Stevens, WA
is your current slim fan shrouded?
 

H05TYL

Well-known member
Joined
Jun 9, 2007
Messages
752
Location
Wgtn, NZ
The fan setups in recent Audi's are pretty slim, about half as deep as the stock fan, and have a better blade design than most aftermarket slinline fans I've seen.

Most newer cars probably run similar fans with shrouds on a radiator of similar size to the gvr4 one. It's what I'd be looking into if I still had my vr4.
 

dsmless

Well-known member
Joined
Jun 12, 2008
Messages
224
Location
tucson,az
I run a spal unit 12 inch its 2 1/2" wide and clears the 4" intake pipe, I have it wired via a relay to a cabin switch were I turn it on at will, also if you can run your factory ac puller fan it moves alot of air, I had mine wired so it was on whenever the car was on, and my car never saw past 195 temps even with ac on in the arizona summer
 

iceman69510

Turn Right Racing
Staff member
Joined
Mar 5, 2001
Messages
10,907
Location
Michigan
Those temps are ok. Are you worried about higher ambients?

Remember that a 50/50 mix under pressure has a much higher boiling point than 212. You don't want to see much higher than 230 though since that temp can start oil breakdown if I remember correctly. (Maybe its 260 F)
 

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,971
Location
Yakima, WA
I'd rather not see anything over 206-210ish since the last several years that's the highest I ever saw. I am worried about higher ambient temps, and the fact that I wasn't even running AC. I don't wanna be doing random WOT pulls wiht the coolant temps that high, yanno? I'd swap in a lower t-stat, but I know that that only means it will open sooner and be full open at a lower temp.
 
Last edited:

bazeng

Well-known member
Joined
Feb 6, 2003
Messages
2,520
Location
Melbourne, Australia
Spal fans are great.... I use them on my cars...

Curved blades (directional).. I run a single 14" pusher on my VR4 and 2x 12" pushers (a/c and rad) on the AMG... Both are quite and do not overheat.
 

4Grim

Well-known member
Joined
Sep 30, 2004
Messages
2,478
Location
Orlando FL
I am using a single SPAL slim fan...never overheated and stayed right around 200 degrees in the humid florida heat. A bit more quiet compared to stock fans.
 

thecman02

Well-known member
Joined
Nov 3, 2007
Messages
913
Location
Kalamazoo,MI
Quoting iceman69510:
Those temps are ok. Are you worried about higher ambients?

Remember that a 50/50 mix under pressure has a much higher boiling point than 212. You don't want to see much higher than 230 though since that temp can start oil breakdown if I remember correctly. (Maybe its 260 F)



I'd just like to say that the higher boiling point is mostly due to the pressure of the cap. 15 psi cap raises the 212 boiling point to 257 by itself. Another 8 degrees Farenheit is contributed to the antifreeze at a 50% mixture.

As far as slim fans go, FAL 12" that I have that was designed to fit my half radiator moves a #$%^* ton of air. I don't have AC, but my car in traffic/idleing on 90* days is always sitting on 190*
 
Last edited:

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,971
Location
Yakima, WA
The fans on the car now are a stock AC pusher and a slim 14" puller. I bought it back in '06 and can't remember the brand. I don't remember it being more than like $80 though so maybe it's just a cheapie. It's unshrouded, BTW.

Has anybody used one of the FAL shrouded 12" units? They're $150 and should fit just fine. I think an unshrouded 14" SPAL is about the same price, but I would rather have something with a nice shroud.
 

curtis

Well-known member
Joined
May 4, 2003
Messages
11,892
Location
Clarksville TN
Mark on mine I have a Scirocco radiator with early 90's Passat fans. The factory Scirocco had a single fan. The passat radiator is also a dual pass like the scirocco but a few inches wider so I had to build some tabs that run back to the mounts. Its just what I found to fit. The motors on these are dual speed but long and run back towards the turbo intake pipe but the corrado's use the same type set up with a shorter motor. The fans are twin blades and connected with a belt. Reason for all this info...... they work. I actually had a hard time getting the car up to temp.

You just have to source out the parts because on ebay they usually pull good money. Also audi's from the same time line have the same set-up as the passats.

When mine goes back together I'll probably get a Passat/Audi radiator since its longer and put it in front of the Scirocco unit for my water to air heat exchanger. That way the two cores can be sealed together with pieces of bent sheetmetal and the passenger side can be offset so the pipes stick out just to the side of the scirocco unit.
 

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,971
Location
Yakima, WA
Curtis, that won't work for me. I still have a factory radiator and AC. I need a single that will fit a stock radiator tha's thin enough to clear my 4" intake and turbo outlet. The FAL looks like it will fit great based off the dimensions listed online.
 

JNR

Well-known member
Joined
Apr 23, 2004
Messages
9,802
Location
ca
Definitely get one with a shroud, or make a shroud for it; otherwise, it won't work as well. It's too bad it wouldn't fit, but the oem puller is pretty good...you may be able to modify it with a custom shroud, but don't recall how close the blades are to the radiator.

There are many oem fans that work quite well, but not sure I know of one off the top of my head that is thin enough. Ford (or their suppliers) makes some outstanding fans that flow all sorts of cfm and are super reliable. The Mark VIII flows 5,000 cfm which is far more than any aftermarket, and while it's relatively thin, probably too big OD + it pulls 40 A!

since you have a pusher for the A/C then you can get away with a smaller puller and not worry about a two-stage. While the pusher is not as effecient as a puller, I bet if you changed the setpoint to come on at a certain temp, in addition to the a/C kicking it on, that may help.

The cap determines the boiling point of water, as mentioned, and I wouldn't run anything over 50% glycol, as that stuff is nasty on the aluminum (corrodes). Pure distilled water is the best, but since you live in an area that freezes, not a good idea.
 

EMX5636

Well-known member
Joined
Jun 28, 2008
Messages
1,631
Location
Bucks County, PA
Just stay away from the cheapies. I had Mishimoto fans (although their radiator works well), a 10" A/C and 12" primary, would start to creep up in traffic even without the A/C on. I swapped to SPAL 11" and 12" respectively, and temps never get above 210* with A/C on with a DSM Rad. The SPAL fans seem to be measured by fan blade diameter, while the Mishimoto (and probably anything else on Ebay) seem to measure by the shroud size. I am running both fans as pushers, in front of the A/C condenser.
 

citymunky

Well-known member
Joined
Sep 22, 2010
Messages
1,760
Location
Chesapeake, VA
for that price it better
 

EMX5636

Well-known member
Joined
Jun 28, 2008
Messages
1,631
Location
Bucks County, PA
It should work well. We use those at work on hydraulic coolers. They are pricey, but FAL is a good name.
 

turbowop

Well-known member
Joined
Apr 29, 2001
Messages
11,971
Location
Yakima, WA
I like that it has a shroud already built in. Most of the SPAL's I was looking at were in the same price range, but just had the cage around them, so I opted for this.
 
Support Vendors who Support the GVR-4 Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications RixRacing RockAuto RTM Racing STM Tuned

Recent Forum Posts

Top