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What a great array of upcoming articles! Can't wait for oh eight!
-Especially the massive cam optimization report. Guess it's a little late for requests, but I would love to see some LCA Vs. header design stuff. The vast majority of recommendations, including DV's, are ~ 106 -108, yet I've seen a number of top running engines that need much more (e.g.., consulted recently on a 358 SB2.2 'NASCAR take-offs' road race engine, where the builder expected a 106 to do the job, but after a number of cam swaps, hit the numbers and RPM range (6,500 to 8,500) with 835 HP @ 8,200 and a rev limit of 9,000+ using a 112° LCA and 3-step merge/meg headers.
My theory is that with off-the-shelf engine parts and headers, narrow LCAs are a logical and low-risk choice, but with everything, especially header dimensions, optimized and over 300° seat durations, they result in over-scavenging and a wider LCA is superior.
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