COPIED post from "Engine" thread

Benevolance,

I am running, and have run a 904 on road courses and dragstrips for quite a while with good success.

I'm interested to hear more about "ultralight cases" and such. Do you mean road courses when you say "track", or dragstrps? What is the minimum weight for a 904 and how much abuse can they take?

I'd say a 1-2 hr enduro race (sustained 4000-6000 RPM with few pit stops), or at least 30 min continuous would be necessary for me. I've certainly done 30 min sessions with no problems.

Thanks,

Lou

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