Hi, Interesting!!!...
I'm usually tuning my side valve, 5.5 to 1 static, and have great pain to understand the race towards higher CRs on boosted engines...
A simple calc will show anybody that the lower the static CR on a boosted engine, the more mixture you can cram in (capacity plus head volume every 2 revs so, if CR is lower, head volume is bigger...)
So it boils down to: is it better in the same cylinder to burn "some more" at a boosted 10/1 CR or burn "some less" at a boosted 14/1 CR???
Stresswise, I'll always opt for the lower ratio!!! Last time on the Salt Flats, an average 2 mile run took me about 1mn1/2 (1mn to get to the start of the 2nd mile, second mile over 120mph = about 20 seconds) As mentionned before, all that on a fully loaded WOT vintage engine...
Another thing to consider for your engine and its longevity: to get to 200mph, how many miles will you need... Traction was a bit poor this year. On my best run, I entered the 2nd mile at 118mph and exited at 123mph, 5mph gained in 1 mile and I tried my hardest to go faster but the rear tyre just wanted to spin on the salt. 123mph with a 135mph gearing/engine speed, the difference was tyre spin.
Patrick,
PS: see most of you again next year, I'm a fully grown addict now...