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When Hollywood Ruled The Skies - Volumes 1 through 4 by Bruce Oriss


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PostPosted: Tue Sep 17, 2019 7:47 pm 
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Warbird Racing engines.... what's different from stock?
I've been feeding a growing interest in performance engines and how much power can be gained from various changes that are done versus a stock built engine. I'm curious as to what changes are done on the racing versions of the Merlin and the P&W Radials.

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PostPosted: Tue Sep 17, 2019 8:49 pm 
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On Merlins, they like the sturdier "Transport" heads. They also swap out the connecting rods for Allison rods, which are stronger. Beyond that, they run insane boost pressure, complete with anti-detonation fluid to prevent very bad things from happening at those boost levels.

All of those things can be read about in various racing forums and articles. I wouldn't be surprised if they are running ceramic coatings and the like to manage temperatures, but I have no specific knowledge.


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PostPosted: Tue Sep 17, 2019 9:39 pm 
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Bruce Lockwood wrote a pretty good article for Warbirds International within the last two years, but I can’t find how to search for the issue on their website

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PostPosted: Tue Sep 17, 2019 10:40 pm 
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Hey Scott,

Check out the Sport Class, high-performance kit-built aircraft at Reno...

https://urldefense.proofpoint.com/v2/ur ... rjcAC2M&e=

Phil

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PostPosted: Fri Sep 10, 2021 3:06 pm 
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From a Bruce Lockwood article on Tube Merlins.
pop2

Attachment:
XTubeMerlin.jpeg


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