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      10-26-2019, 03:23 PM   #55
pokeybritches
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Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles

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2006 BMW Z4M  [10.00]
2006 BMW Z4M  [8.50]
2003 BMW Z4 3.0i  [9.00]
Quote:
Originally Posted by Residentj3553 View Post
I'd be cautious with the titanium valve springs and retainers. They require more maintenance in exchange for lightweight... but you probably already knew that.
I haven't seen enough data to convince me that the shorter life of titanium valve springs isn't primarily related to usage. Engines with titanium valve springs are usually run a whole lot harder than stock engines. Some even think the lighter weight improves the reliability of other components and reduces wear. I'm all ears if you've had other experiences... always willing to learn!
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