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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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Tue, Nov-06-2007, 05:14:54 AM
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einpresstiefe
Join Date: Aug 2006
Posts: 12,524
Reputation: 0
 Location: northern california
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flat spot at high RPM
Unrelated to the current intake threads...
But what causes flat spots at high RPM when certain intakes are installed? And how can it be remedied? For some it's actually in the middle of the band where torque is lost.
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Tue, Nov-06-2007, 05:42:48 AM
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Registered User
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Change the intake again. Software. Any other breather mods can flatten out the band.
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Tue, Nov-06-2007, 05:51:20 AM
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#3 |
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Registered User
Join Date: Feb 2004
Posts: 2,921
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 Location: Chicago
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Wyatt not being mean, but you don't own an M3 but you like live on here...buy one already and join the team so you can contribute already!!
 But it possibly could be too much air being pulled in and software still hasn't adjusted. Kinda like the first few hundred miles after installing CAI
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E92 ///M3 AW/Black-Extended 6MT Cold/Premium/Tech/Sound/iPod/HD/SAT/PDC/CF Roof/Shade http://www.chitownm.com/forum/index.php |
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Tue, Nov-06-2007, 05:58:00 AM
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Too Many Cars
Join Date: Jan 2006
Age: 55
Posts: 1,057
In the garage:
Reputation: 0
Location: Phoenix
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A properly set up ECU will get rid of flat spots, broaden the power band and give you more power and torque.
Based on mine as well as the other M3s that we have done, I would say software.
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 Ciao.....Dino M3 ..... tuned to 365 hp & delimited Ferrari Challenge Stradale..Tuned to 460hp F40 (sold), March/Cosworth Indycar Ducati 916, SL55 AMG.... tuned to 550 hp & delimited Mini Cooper S... tuned to 185 hp |
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