[wcbtinman]

RE: swirl valve in inlet tract.

They are a little late on this one. Years ago, when Bill Elliot was terrorizing the NASCAR circuit, part of his advantage involved swirl technology involving parts of the entire inlet system. NASCAR eventually outlawed much of the technology from being used, due to the expense of the R&D required by the other teams to catch up.

Elliot (and the other FORD teams that were privey to the idea) was getting more power and significantly greater fuel mileage than his competitors. IIRC his relative, Ernie Elliot was the guy resonsible for this discovery, at least as it related to gasoline engines.

[Old Professer]

NASCAR used to be a "proving ground" for engine/chassis technology, now it is just a choreographed exercise in high-speed "bumper-cars."

[dalereed]

Doan Spenser also ran a formula 1 in the 70s that he had an advancing cam in plus a whole bunch of other tricks in a 289 Ford that was getting almost 500 horspower.

The auto industry hasn't come up with anything that hasn't been done in racing at least 20 years prior.