What about a blower?
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You can never outperform a turbo with a blower. The efficiency is not even in the league. Some detroit deisels used blowers, of course some were 2 stroke as well. The blower would be there right off idle but on the top it would be hopeless and hot. It wouldn't flow enough without going half way up your windsheild, and then it wouldn't make anywhere near the boost, and THEN it wouldn't be useable because of the heat inherent in a blower at any decent boost. Yes it could be done. But unless you plan on stareing at the back of a blower about the size of a small v6 on top of the stroke and then using chemical cooling agents 24-7 just to keep it out of the melting zone, like constant methanol or nitrous into the impellers, it wouldn't be possible, and even with all of that, it would still lose to a turbo stroke. Look at how much nitrous the top fuel guys have to pump into that blower ABOVE the impellers just to keep it from overheating. And they only have to run for about 4 seconds. A blower doesn't actually compress the air within itself. It just moves an amount of air larger than the requirements of the motor so that the extra amount "stacks up" and creates boost. It is horribly innefficient compared to a turbo. The newer whipple style chargers are much better with the impeller designs, but they are still nowhere in the league with a turbo for all out performance especially on a durated timescale.
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Not to sure about the mechanics of possibility, but blowers are great for power, althought it takes your engine something like 15-20% of the power just to run the blower, so you might have instant power instead of "lag" but its costing you in the long run. Just my .02$
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