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      03-18-2017, 07:14 PM   #105
GuidoK
#buildnotbought
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Drives: Z4 3.0i ESS TS2+
Join Date: Jul 2012
Location: Tinkering in the garage

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Quote:
Originally Posted by Westersund View Post
but the difference between a M50 (iron) and a M52 (aluminium) is about 30 kg (66 lbs) if I don't remember wrong.
Thats about right. N52 is about the same mass.


Reason for the z4m being over 100kg heavier is engine (30kg or so) but also dual backbox exhaust (about 15-20kg, the complete exhaust is bigger/heavier), 215 diff (lsd), hydraulic steering and bigger brakes. And countless little differences (propshaft, gearknob , extra oil cooler, etc etc). It all adds up.
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Z4 3.0i | ESS TS2+ supercharger | Quaife ATB LSD | Brembo/BMW performance BBK front/rear | Schrick FI cams | Schmiedmann headers+cats | Powerflex/strongflex PU bushings | Vibra-technics engine mounts | H&R anti rollbars | KW V3 coilovers/KW camber plates | Sachs race engineering clutch | tons of custom sh#t

Last edited by GuidoK; 03-18-2017 at 07:23 PM..
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