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Improve bhp & torque: Light weight crank pulley & alternator pulley
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<blockquote data-quote="ess530i" data-source="post: 348650" data-attributes="member: 13496"><p>i read that the new e90/92 m3's have crank pulley w/out the rubber harmonic balancer... must be real light & fun to drive. wonder what and how they improved on the engine to enable it to run reliably without the harmonic balancer</p><p></p><p><a href="https://www.turnermotorsport.com/html/project_e90m3.shtml" target="_blank">https://www.turnermotorsport.com/html/project_e90m3.shtml</a></p><p></p><p>the seller of SWAP is indeed the same seller of RAPTOR sc kits as the contact # is the same...i believe he is a forumer here too. perhaps he can enlighten us on the technology used for his lightweight pulley w/ harmonic balancer. until then, it is highly NOT recommended for anyone of us (besides e90/92 m3 owners) to 'downgrade' their stock crank pulleys to lightweight ones</p><p></p><p>p/s: i'm the 'unlucky' e60 owner who got screwed by the lightweight crank pulley (dun ask how). feel real sorry for the x5 owner...</p></blockquote><p></p>
[QUOTE="ess530i, post: 348650, member: 13496"] i read that the new e90/92 m3's have crank pulley w/out the rubber harmonic balancer... must be real light & fun to drive. wonder what and how they improved on the engine to enable it to run reliably without the harmonic balancer [url]https://www.turnermotorsport.com/html/project_e90m3.shtml[/url] the seller of SWAP is indeed the same seller of RAPTOR sc kits as the contact # is the same...i believe he is a forumer here too. perhaps he can enlighten us on the technology used for his lightweight pulley w/ harmonic balancer. until then, it is highly NOT recommended for anyone of us (besides e90/92 m3 owners) to 'downgrade' their stock crank pulleys to lightweight ones p/s: i'm the 'unlucky' e60 owner who got screwed by the lightweight crank pulley (dun ask how). feel real sorry for the x5 owner... [/QUOTE]
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Improve bhp & torque: Light weight crank pulley & alternator pulley
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