Quote:
Originally Posted by martinker
One question of the use of the RR530 alloy. Was this used since the beginning on the 930's? Or was this only used when the 3.3l's came out?
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RR350, Bill typo'd it. Also used on 993s. I've never seen an answer as to whether the 3.0 930s had it or not, but many discussions here of RR350 over the years.
Also info on Wikipedia (as it was developed before WWII and used on many aero engines - the "RR" stands for Rolls Royce, who developed and still license it).
Many have started with SC or 3.2 heads to make insane power levels on both street and track cars; less metal to remove. No-one has reported them melting in forced induction applications.