Bronze vs. Cast Guides - was Re: <VV> Re:95 heads on turbo.
Sun, 1 Aug 2004 12:08:52 EDT

In a message dated 7/31/04 4:48:58 PM Eastern Daylight Time, N2VZD writes:
i have seen more failures of bronze guides than cast.  even discussed it with 
good shop owner here...i put cast in for my stuff. better lube because pores 
are more open.
    Well, this might be explained by the fact that the bronze guides are only 
installed (by the factory) in the turbo cars which generally have much higher 
heat loads placed on them than the non turbo ones.  On the other hand, lots 
of 140s get driven pretty "vigorously" although that might be more a case of 
high revs than combustion chamber heat loads like the 150/180s get.
    Thanks for the feedback.  I'm putting this on V V and FastVair since we 
might get feedback that supports your findings.  And I'd like to get more 
feedback on this.
    Frank Burkhard