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-   -   Fan delete mod roll-call & W. pump question (http://www.m3forum.net/m3forum/showthread.php?t=342322)

Sliquepimp Fri, Nov-12-2010 11:02:20 PM

Fan delete mod roll-call & W. pump question
 
who all has done the fan delete mod? this -> http://www.understeer.com/fanclutchmod.shtml
If so, what has your experience been? like it, dislike it? please give reasons. Also, everything I read about the "time bomb" water pump deals with 92-96 M3, did they stop using the plastic empeller on 97-99? if so, are the later ones less failure prone? thanks.

marvinstockman Sat, Nov-13-2010 12:39:24 AM

The fan in my '98 broke a blade just before I was about to take a trip. I removed the fan, and made the trip fine. I drove it for two weeks, and kept thinking if my wife borrowed the car the only time she'd realize it had overheated was when it came to a grinding halt. My sons, on the other hand, wouldn't even know the car had stopped - music too loud!

Unless the electric fan fails, I don't think you'd ever overheat. But.....

Also, the temperature gauge is not in a great place, and you almost have to make an effort to look at it.

Magic M3 Sat, Nov-13-2010 12:48:54 AM

Quote:

Originally Posted by Sliquepimp (Post 1064486876)
who all has done the fan delete mod? this -> http://www.understeer.com/fanclutchmod.shtml
If so, what has your experience been? like it, dislike it? please give reasons. Also, everything I read about the "time bomb" water pump deals with 92-96 M3, did they stop using the plastic empeller on 97-99? if so, are the later ones less failure prone? thanks.

Mine has been done for about 2 yrs and I have had no problems what so ever. Make sure you install the 80C thermo, 80/88C fan switch as well as a couple bottles of water wetter and you should be good to go!

Z3MCOUPE Sat, Nov-13-2010 12:59:05 AM

I did the fan delete last summer. No issues with 3 track days and 1 autocross.

I have a Spal Puller Fan Mod that I have not installed yet. I'm not sure I need it.

Fan delete
Water pump
Thermostat
Aluminum Thermostat Housing
Fan temp switch
Expansion tank
New idler pulleys and serpentine belts

Sliquepimp Sat, Nov-13-2010 01:19:56 AM

Quote:

Originally Posted by Magic M3 (Post 1064487092)
Mine has been done for about 2 yrs and I have had no problems what so ever. Make sure you install the 80C thermo, 80/88C fan switch as well as a couple bottles of water wetter and you should be good to go!

awesome, thanks for the heads up. I think I'm gonna order the kit from understeer.com. It's 110 shipped for all of that inc. WW and the correct thermo.

Sliquepimp Sat, Nov-13-2010 01:21:03 AM

Quote:

Originally Posted by Z3MCOUPE (Post 1064487103)

I have a Spal Puller Fan Mod that I have not installed yet. I'm not sure I need it.


what exactly is that?? thanks.

elzy Sat, Nov-13-2010 02:24:22 AM

Quote:

Originally Posted by Sliquepimp (Post 1064487131)
what exactly is that?? thanks.

If im not wrong, its a spal fan that is installed behind the radiator that is supposed to pull more air to cool down the radiator.

Z3MCOUPE Sat, Nov-13-2010 02:28:07 AM

^ yep

das borgen Sat, Nov-13-2010 04:00:15 AM

to be perfectly fair, the stock aux fan already moves way more air than most fans (curved blades tend to be better and also quieter)....as long as you have a fully operations aux fan, you're fine.
If I had to it all over, I'd keep only one electrical fan. It's either the stock aux or a spal puller.....and I'd choose a brand new aux fan....but it s nice to have the fail-safe of a second fan should the 1st one fail


on track, when you're at speed, the movement of the car already does all the cooling. Any fan is only needed when below 30mph and standing still

das borgen Sat, Nov-13-2010 04:00:53 AM

see my thread
http://www.m3forum.net/m3forum/showthread.php?t=329781


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