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12-17-2010, 09:23 PM
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#6
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Hooligan
Drives: 2014 Porsche Cayenne Turbo S
Join Date: Dec 2008
Location: Boston, MA
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Quote:
Originally Posted by epbrown
It's always the first question. 
Actually, I went with the 3.91 for the same reason I added Aerodynamic Sideskirts and CSL wheels - I wanted to build the Z4M as I felt it should have been. While you can get the 4.10, every BMW tuner recommended the 3.91 for the Z4 (Hamann, Hartge, AC Schnitzer).
To me, them and - I suspect - even BMW, it enhances car's performance without ever being obnoxious, and doesn't require an extra shift for the 0-60 sprint (about 4.5-4.6secs) like the 4.10 does. BMW uses a 3.85 in the E90 M3, Porsche uses a 3.88 in the Cayman S (iirc).
It was pretty much the limit in a street-drivable sports car, before emissions and mileage concerns lengthened everyone's gears and added cogs. |
this
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2014 Porsche Cayenne Turbo S
2011 X5 5.0 Dinan - SOLD
2007 Imola Red Z4 M Coupe -SOLD
2004 Navy Blue BMW 325Ci |
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