Performance Upgrades & Tuning Discuss general performance and tuning enhancements for your Mercedes-Benz.

Thinking about flex fan..

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jul 24, 2003 | 04:42 PM
  #1  
CL600_W140's Avatar
Thread Starter
Newbie
 
Joined: Jul 2003
Posts: 13
Likes: 0
Thinking about flex fan..

Anyone know what I am talking about???

it is called Flex Fan I think..

sounds nice.. I think it keeps the engine cooler also..

I got the w140 V12
Reply
Old Jul 24, 2003 | 08:22 PM
  #2  
Lynn's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 3,744
Likes: 1
Doesn't your car have thermostatically controlled electric fans?
Reply
Old Jul 24, 2003 | 09:50 PM
  #3  
CL600_W140's Avatar
Thread Starter
Newbie
 
Joined: Jul 2003
Posts: 13
Likes: 0
Yes two small fans.. in the front.. that usally turn on when the AC is on... but there is a real fan connected to the belts... The fan looks like a normal fan.. a buddy of mine has a mustang and I helped him install this spiecal fan on it.. I think it was called FLEX FAN.. I wonder if I can put one on my car....
Reply
Old Jul 25, 2003 | 11:37 PM
  #4  
quietflight's Avatar
Almost a Member!
 
Joined: Jun 2003
Posts: 40
Likes: 0
http://www.spal-usa.com/html/oemframe.htm
Reply
Old Jul 26, 2003 | 12:45 AM
  #5  
E55AMG99's Avatar
MBWorld Fanatic!
 
Joined: Mar 2003
Posts: 3,445
Likes: 3
From: WOT somewhere in the Bay Area
1951 Caterpiller D6
Are you having an overheating problem? My advice is to stay away from flex fans. They do work as claimed but they also tend to explode after the material is weakened with use. I saw one put a nasty $400 hole in the radiator of my brother's '69 442.
Reply
Old Jul 26, 2003 | 01:04 AM
  #6  
Lynn's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 3,744
Likes: 1
We tried a flex fan on a short track stock car over 20 years ago. The results were, uh, less than optimal. Don't waste your money.
Reply
Old Jul 26, 2003 | 03:56 AM
  #7  
CL600_W140's Avatar
Thread Starter
Newbie
 
Joined: Jul 2003
Posts: 13
Likes: 0
no I am not over heating.. just wanted to add more to my car.. is a flex fan as same as a high proformance fan?
Reply
Old Jul 26, 2003 | 09:29 AM
  #8  
E55AMG99's Avatar
MBWorld Fanatic!
 
Joined: Mar 2003
Posts: 3,445
Likes: 3
From: WOT somewhere in the Bay Area
1951 Caterpiller D6
Originally posted by CL600_W140
no I am not over heating.. just wanted to add more to my car.. is a flex fan as same as a high proformance fan?
I see. Don't waste your time or money on the fan. There are dozens of things you can do to your Benz that will give you a better bang for your buck. Things like...

1. Performance chip
2. Tires/wheels
3. Lighted door sills
4. Exhaust mod
5. Body kit
6. etc.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

 Verdad Gallardo
story-1

8 Oddball Mercedes Ideas That Actually Made it to Production

 Verdad Gallardo
story-2

Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

 Verdad Gallardo
story-3

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-4

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-5

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-6

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-7

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-8

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-9

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
Old Jul 27, 2003 | 10:31 PM
  #9  
Dr Chill's Avatar
MBWorld Fanatic!
20 Year Member
Photogenic
 
Joined: Dec 2002
Posts: 1,351
Likes: 22
From: Palm Beach Gardens, FL
Porcelain Bus
I have a flex fan on my 442. No matter what I did before I added the fan, the big block would always overheat in the FL sun with or without the A/C on. The fan is much louder than the stock fan, but it works. If the stock fan works, don't change it.
Reply
Old Jul 28, 2003 | 12:56 AM
  #10  
levelr123g's Avatar
Super Member
 
Joined: Sep 2002
Posts: 571
Likes: 0
actually if he frees up the engine having to turn the fan then he should regain some hp to the wheels. as long as the fan he replaces it with flows the same cfm then he should have no problems
Reply
Old Jul 29, 2003 | 08:05 PM
  #11  
David Hendy's Avatar
Member
 
Joined: Apr 2003
Posts: 188
Likes: 0
From: New Milford, CT
'97 Renntech E60RS
A couple of things are affecting your performance in hot weather.

Firstly, the timing on your engine is retarded above 100 C, water temp, as much as 10%.

Secondly the viscous fan attached to water pump has a flex coupling that only locks up in air temperatures over 85F, when it locks up it takes 15 hp to run the fan.

Thirdly the auxiliary fans in front of the car only come on at 110 C water temp, (and when the a/c is on) by which time you could have lost 30-40 hp in losses.

I have a switch on my 500E that kicks the auxiliary fans in at 95 C.
I think your car has the same injection system so the switch should fit. It is completely automatic, completely hidden, costs about $25 and can be installed in a couple of minutes.

Also, get a pair of Spal electric fans, with an adjustable themostat, I'm sure two 13" will fit in your car, the car will run cooler and you will have more horsepower. I have a single 16" Spal fan, it works great

Cheers


David Hendy
'92 500E 77k miles
Some Upgrades
Reply
Old Jul 30, 2003 | 04:10 AM
  #12  
CL600_W140's Avatar
Thread Starter
Newbie
 
Joined: Jul 2003
Posts: 13
Likes: 0
any pictures of what your talking about?
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 03:26 AM.

story-0
New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

Slideshow: Mercedes-AMG's updated GLE 63 S and GLS 63 bring a new-generation V8, subtle design revisions, and familiar supercar-rivaling performance figures.

By Verdad Gallardo | 2026-06-17 12:52:51


VIEW MORE
story-1
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-2
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-3
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-4
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-5
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-6
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-7
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-8
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-9
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE