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#1
07-25-2013, 10:19 AM
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2000 X5 4.4 V8 performance improvement
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2000 X5 1999 Z 3 2.3 1994 Dodge 1500 4x4 1990 Jeep Wrangler 1947 Dodge p/u 4x4 small block 
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#2
07-25-2013, 10:22 AM
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If they do i doubt it will be much at all. Maybe even just the placebo effect making you think its actually faster
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2003 4.6is 2004 E53 4.4i N62 http://i.imgur.com/nNNg5Qz.jpg http://i1238.photobucket.com/albums/...ps3xxtq5op.jpg 2007 E63 M6 S85 http://i.imgur.com/mSXK6ML.jpg 1984 Porsche 911 930 Turbo http://i.imgur.com/i9XUXOg.jpgg http://i.imgur.com/ZMGou51.jpg 1983 E21 320i [Sold] http://i1238.photobucket.com/albums/...psfd905353.jpg
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#3
07-25-2013, 10:33 AM
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 Bimmers are pretty well tuned from the factory for engine performance. Only performance software can squeeze a little more out of them.
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 00 E39 DINAN S1 //M5 (82k miles) 06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html 90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq 01 360 Novitec Spider F1 (26k miles)
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#4
07-25-2013, 11:32 AM
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When I was taking my teenage son to the track and teaching him bracket racing (it's kind of a pops required thing), he was running simulations on various software regarding weight, gearing drag, and horsepower, ('cause that's a teenager thing), and he couldn't get the calculated horsepower to achieve his runs at the track to jive with the "290hp published" power figures. Used the gearing, CD, gearing, etc. was provided by other software I have that included the X5 in its database. I don't remember the specifics, but across more than one simulator the results were consistently in the low 300s. I'd say the only way to get more "power" out of the engine as configured (assuming good state of tune) is with mods that alter the power curve and rpm range as well.
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#5
07-25-2013, 12:06 PM
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the coils produce the high voltage needed for the spark plug and the DME regulates the timing of the voltage... the coil either produces the voltage, or misses it, as the coil is of inferior quality, or, part of the voltage shorts out to the chassis... Running a "higher" voltage will yield anything - when you crack an egg, regardless if you crack it with a knife, a fork or whatever, the end result is stil the same - the egg is cracked...
 that is a sales pitch that may be valid for some other car makes but not for BMW - unless you change the software mapping of the engine...
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#6
07-25-2013, 03:13 PM
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Great thanks for sound advice.. I will pass on coil packs and install My new radio/Nav system.. ordered Monday and it showed up already...
__________________
2000 X5 1999 Z 3 2.3 1994 Dodge 1500 4x4 1990 Jeep Wrangler 1947 Dodge p/u 4x4 small block
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