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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 10-07-2012, 07:54 AM
doug773 doug773 is offline
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Location: FLORIDA
 
Join Date: Oct 2012
Posts: 5
Mein Auto: BMW 540, 328 AUDI A8
Supercharging a 540

Hi all!

Please share with us the pros and cons of supercharging a 540. Not super tune it, but just putting the very basic kit. The impact on day by day driveability, fuel burn etc.
I'm not considering rubber burning or flooring it all the time. Just some stretches from time to time.

Tks, doug!
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  #2  
Old 10-07-2012, 05:13 PM
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abanjableu abanjableu is offline
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Location: Eastern PA
 
Join Date: Feb 2009
Posts: 755
Mein Auto: 02 540/74 911/01 Z3(hers)
waste of money

Save the money for repairs or buy someone elses headache and get one already charged on ebay. They sell for the same money if not less as one that hasn't been molested. Or take the money and buy an m5 and again save more for repairs. The m5 should at least pass inspections easier...and has the correct rotors/calipers to stop a 400hp car.
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Old 10-07-2012, 05:15 PM
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the540wgn the540wgn is offline
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Location: San Jose, CA / Littleton, CO
 
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Mein Auto: '02 540iT
pros - power
cons - $$
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  #4  
Old 10-07-2012, 05:23 PM
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bricas45 bricas45 is offline
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Mein Auto: '01 540i6, '94 325is
Nothing quite like the blown 540 I must say... I still get decent economy about 25-26mpg highway ( when normal driving of course). Certainly has potential to burn low single digits though. It is a lot of work and yes when you push the car things will wear faster. Make sure everything is up to snuff before even considering this. You can get a uses kit for a steal every once in a while but have the blower rebuilt of you so.

Compared to an M5 a blower kit will have you at close numbers, sc 540i should still be a little better for fuel economy, m5 insurance is a bit higher, sc 540i is a killer stealth car, m5 would probably pull hard if not slightly stronger than a sc 540i 6psi that is.
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Old 10-09-2012, 08:18 AM
JimLev JimLev is offline
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Location: MA
 
Join Date: Dec 2003
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Mein Auto: 540/6, S60 Volvo, Tribeca
Depending on the blower setup (Dinan vs VF) a SC 540 will be quicker than an M5.
I know of two Dinan SC 540's that dyno'ed at 400 and 414 RWHP.
Both were 6 speeds with 3.15 diffs. The M5 is also a heavier car.
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Old 10-09-2012, 11:29 AM
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bluebee bluebee is offline
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Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,543
Mein Auto: 02 BMW 525i M54 auto 130K
Just type /induction F3 in the VERY best of E39 Links and you'll find this among others:
- CAI 101 should I do it or not (1) and which is better, stock or aftermarket cold air intake (1) (2) & a home-made CAI (1) & the general consensus on the effectiveness of an aftermarket CAI versus the stock BMW CAI (1) (2) (3) (4) (5) & how to reduce the risk of hydro lock (1) (2) & what about a K&N oiled air filter over the stock air filter (1) & a forced induction group buy (1) and adding nitrous oxide to your E39 (1) & links to suppliers to improve performance of your E39 (1)
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Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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