Welcome to the Forum, you probably have wealth of expertise for comments here. One thing that always fascinated me was the evolution of the Offie-4 in the Indy roadsters based roughly on early designs from the Ford 4-cyls with special heads. Although the Offie-roadster design eventually became obsolete for Indy cars, their performance was far more than most street V8s today. With major mfgrs going back to 4-cyls today the Offie Indy engines look even more interesting, but of course they were expensive beyond what is practical for a street car. I do not have access to dyno data for those early engines, but maybe you do. It would be interesting to compare the later Indy-Offie methanol-fueled engines to the modern Pontiac Ecotec gas fueled engines. By the way, how come we don't seem to hear anything on this Forum from folks who campaign the Ecotec Pontiacs (roughly 600 H.P. Sunfire with blower)? Maybe we are mostly geezers rehashing mid-70s V8s, while the 2005 kids are busy twirling wrenches? Anyway, it seems to me that the Offie 4-cyls of the early '60s are pertinant to modern 4-cyls, but I am just rambling on here.

Don Shillady
Retired Scientist/teen rodder