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Check the drive ratios. That will tell you the story. The 530 MT has a higher final drive ration than a 330 so it's possible that it will pull stronger. I don't know all the gearbox ratios to know what the effective drive ratios are. Here are the rear end ratios:
330 MT = 3.15
530 MT = 3.23
330 Auto = 3.64
530 auto = 3.64
3.15 to 3.23 is a pretty small increase but is probably adequate to compensate for an extra couple hundred pounds of mass. I had the final drive ratio on my 330 changed from 3.15 to 3.38 and it definately made a difference in acceleration.
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'07 Z4MR '22 GT4 '18 GT3 '16 GT4, '16 M2, '14 X1, '13 135is, '06 330i, '03 323 Ci, '01 330i, '99 M3 (RIP), '96 318is, some non-BMWs
Last edited by Pyrat 2; 06-07-2009 at 09:19 PM..
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