Greg,

You've covered most of what I've been noodling on w.r.t. this one. I suspect that we'll shortly see a change in the rule wording that all air entering the engine must pass through said MAF/AFM/etc. Even so, I think that with enough development, what you have proposed could be made to work. It would be an interesting exercise to see just how much of a gain could be made.

I also see some somewhat easier (and probably much less costly) alternatives. Swap the fuel distributor, err, 'computer' out for one that flows more fuel. Say one from a 944 or a Volvo. Or just modify the existing one to meet the specs of the higher flowing one. That's probably where you'll see anybody that's interested in tweaking one of these cars going.

You would think after all that's gone on w/ rules over the past few years, that they would have figured out how to write them by now so that they actually addressed the desired issue.