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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Jun-20-2018, 06:57:54 PM   #1
Radekxpl
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Default Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan

For many years I have read numerous threads about which fan options are available for our cars with basically 2 main contenders that fit our cars.

Spal 30102049 puller curved blade 19amp (quiet) depth 3.45 in
Spal 30102120 puller straight blade 22.5 amp (loud) depth 3.45 in

So I have decided to go with the quiet option the Spal 2049 fan at the time, which works as many people do run this fan, but for me personally on hot track days the temp would be higher than I would like at around 200-205F and I would have to back off for the temp to drop to normal range. So I was debating about the Spal 30102082 Paddle blade 24 amp (most powerful sealed fan) depth 3.74 in, most people said it would not fit because it is thicker and it would hit the belts or water pump.

I took some preliminary measurements and it did not compute to me what other have been saying. So I took a chance and decided to upgrade from Spal 30102049 try to fit

Spal 30102082 paddle blade (quiet) Got it here https://rover.ebay.com/rover/1/711-5...UAAOSwm4paltxV Best price.


I have great news it fits no problem with our stock radiators and fan mounts from N15 Design which I have used prior with the Spal 2049 fan, no modification necessary bolts right up to the mounts. Even though the fan is thicker the fan motor actually sits little higher compared to the the 2049 fan from the ac belts allowing to have more than enough clearance for trouble free operation (see pictures I tired my best with iphone to demonstrate forgive me for quality) I would say at least 10mm of clearance if not more. Since I have installed it I have been to Lime Rock at about 86f wheather and I can truly say this fan is much stronger than 2049 fan was using before. I am running the fan from Aux controller box at the stock ecu values which are kind of high because fan kick in at 80% at 185f and 100% at 195f which is high in the future Im going to change the values to Z4m so it kicks in at lower 100% at 185F which will improve cooling even more.




For comparison between these 3 fans.



At static pressure mmH2O = cfm (which is what you look for in a fan because the total output is always at measured at 0 which is not really relevant in this case because this being installed in car radiator is pretty much always subjected to static pressure unless you have the car parked and not moving at all. The higher mmH20 and cfm the better)



at 20 mmH2O

Spal 2049 putting out 389 cfm at 20.6 amp
Spal 2021 putting out 702 cfm at 19.5 amp
Spal 2082 putting out 991 cfm at 24amp

at 25 mmH20

2049 putting out 0 cfm at 17.7 amp
2021 putting out 378 cfm at 19.5 amp
2082 putting out 596 cfm at 23.6 amp


at 30 mmH2O
2049 putting out 0
2021 putting out 0 at 19.2 amp draw
2082 putting out 384 at 23.8 amp draw


even at 35 mmH20

2082 still putting out not much but 100cfm still better than the other 2 fans which is 0.

Credit for the info to the Spal usa website.

You can clearly see that the Spal 2082 outperforms the other 2 options that most people are using and now I can confirm this from my personal experience now because IT DOES FIT!!!! ( stock radiator at least) Hope this helps for anyone debating on the fan conversion and improving your cooling options.
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Last edited by Radekxpl; Wed, Jun-20-2018 at 07:19:39 PM.
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Old Wed, Jun-20-2018, 07:02:11 PM   #2
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Default Re: Breakthrough discovery about the Spal 30102082 Fan!

I think a SPAL fan is a no brainer upgrade for a car that sees track time.

I have a straight blade fan and it makes a significant impact on outlet temps. If I had to do it again, Iíd mount mine offset so itís easier to work on the belts and accessories.


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Old Wed, Jun-20-2018, 07:07:55 PM   #3
Radekxpl
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Default Breakthrough discovery about the Spal 30102082 Fan!

Quote:
Originally Posted by bigjae1976 View Post
I think a SPAL fan is a no brainer upgrade for a car that sees track time.



I have a straight blade fan and it makes a significant impact on outlet temps. If I had to do it again, Iíd mount mine offset so itís easier to work on the belts and accessories.





Sent from my iPhone using Tapatalk


Spal 2082 have to be mounted in offset for it to fit other wise it will not clear the pump, forgot to mention that.
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Mod list: TTFS Custom Tune, Headers Sec 1 AR20, M-Track Mode programmed, IAT relocated, Upadted cam bolts with S62 pressure springs and diaphragm, sub-frame reinforced foam/epoxy Vince bar & plates, 996 Brembo brakes PFC 08 pads, CDV delete, F10 M5 shift knob, CSL diffuser, black chrome grillies, smoked corners tinted windows, asymmetrical mirrors, Hardwired Bell Pro 300, D/A pulleys, AVANT-II, Dinan CAI, SDW RTAB, Eibach pro-kit/Koni shocks, GC Street Camber Plates, Beisan Oil Pump Disk, ECS camber arms, N15 SPAL 2082 fan, Micro-blue rod bearings, ZHP .712 Yellow tag rack.

Last edited by Radekxpl; Wed, Jun-20-2018 at 07:32:49 PM.
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Old Wed, Jun-20-2018, 07:29:25 PM   #4
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Default Re: Breakthrough discovery about the Spal 30102082 Fan!

Quote:
Originally Posted by Radekxpl View Post
Spal 2082 have to mounted in offset for it to fit other wise it will not clear the pump, forgot to mention that.

I have the thinner version of the fan. I think I paid $80 for it a couple of years ago.


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Old Wed, Jun-20-2018, 07:59:01 PM   #5
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Default Re: Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan

Subbed. Now that my Airbox is installed, time to get my clutch fan out ASAP!
Any reasons NOT to go with the Spal 30102082 for a daily driven build? How loud is it compared to the others you ran? I assume it's relatively similar in volume and hopefully not too loud since it's a curved blade. Thanks for taking the time to post this.
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Old Wed, Jun-20-2018, 08:09:16 PM   #6
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Default Re: Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan

Ive ran them on track cars or daily drivers with no issues - always offset them and mount them on spal brackets mounted to the edges of the radiator vs using those dumb zip tie things.
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Old Wed, Jun-20-2018, 08:10:36 PM   #7
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Default Re: Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan

Careful man, with so much power you might get airborn.
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Old Wed, Jun-20-2018, 08:19:31 PM   #8
Radekxpl
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Default Re: Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan

Quote:
Originally Posted by Dr M3an M3 View Post
Subbed. Now that my Airbox is installed, time to get my clutch fan out ASAP!
Any reasons NOT to go with the Spal 30102082 for a daily driven build? How loud is it compared to the others you ran? I assume it's relatively similar in volume and hopefully not too loud since it's a curved blade. Thanks for taking the time to post this.
I cannot think of any downsides of to much air coming through the engine bay only positives, Volume speaking its not much louder if any then 2049 fan, when car is running at full tilt with ac on at idle hood closed you cannot really hear it.
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Mod list: TTFS Custom Tune, Headers Sec 1 AR20, M-Track Mode programmed, IAT relocated, Upadted cam bolts with S62 pressure springs and diaphragm, sub-frame reinforced foam/epoxy Vince bar & plates, 996 Brembo brakes PFC 08 pads, CDV delete, F10 M5 shift knob, CSL diffuser, black chrome grillies, smoked corners tinted windows, asymmetrical mirrors, Hardwired Bell Pro 300, D/A pulleys, AVANT-II, Dinan CAI, SDW RTAB, Eibach pro-kit/Koni shocks, GC Street Camber Plates, Beisan Oil Pump Disk, ECS camber arms, N15 SPAL 2082 fan, Micro-blue rod bearings, ZHP .712 Yellow tag rack.
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Old Wed, Jun-20-2018, 08:22:04 PM   #9
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Default Re: Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan

You donít want the straight blade fan if you want quiet.

Not unless you like a constant humming sound.


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Old Wed, Jun-20-2018, 08:54:40 PM   #10
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Default Re: Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan

Excellent discovery. Thanks for posting this.
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Discussing Breakthrough discovery about the Spal 30102082 Fan! The Most powerful sealed fan in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)