Likely loaded marketing. At cruise they likely have it perfectly sized to add some VE to the NA engine that nets an almost zero net loss.
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The other thing that comes to mind and why I brought up internal compression is while being the most efficient under normal use and lower boost that design is almost the worst to just bypass as the internal compression will be wasting power and making heat for no advantage. Even an old roots blower would freewheel consuming less power.
What a guy can't argue is the huge power advantage under the curve with the supercharger and should really be the selling point. No question what would be more fun on the street unless your one of those guys that likes LAG LAG LAG then the big hit like some big single guys do.
Max power combinations are kinda unproven, I've yet to see huge power with a super/turbo combo. Ponci must have the biggest setup that I've seen and its hard to say where it will end up with the limited time on it this season but it sure spools awesome.
Ponci's truck may change the sport if he decides to use the tree to his advantage. Wade got booed bad by doing this @ island years ago, but the strategy is sound. The current crop of 9 sec trucks takes 20-30 secs to spool up @ the line. The tree only has a 10 sec bulb delay before red light. A stock prius could beat every 9 sec diesel If they used this advantage. It will force the others to start spooling before they get to the lights to try to compensate and many will make mistakes doing so.$.02
Old roots dont freewheel, they have drag from the rotor seals.
I honestly dont care if it takes 5-10hp more from peak numbers since the curve is that much fatter.
It makes the truck a joy to drive, if I REALLY need uber peak dyno #s, I can always just swap to a stock belt and not turn the SC at all. Simple.
Ponci's truck may change the sport if he decides to use the tree to his advantage. Wade got booed bad by doing this @ island years ago, but the strategy is sound. The current crop of 9 sec trucks takes 20-30 secs to spool up @ the line. The tree only has a 10 sec bulb delay before red light. A stock prius could beat every 9 sec diesel If they used this advantage. It will force the others to start spooling before they get to the lights to try to compensate and many will make mistakes doing so.$.02
30hp at 500 might seem more trivial 90hp or better at 1500 is getting gross when a guy starts thinking about auctioning off his mama for 10HP.
Any ways, always find it interesting and have always kicked the idea around of fooling with a SC.
Have seen the drive by wire guys race in prostreet? Everyone I saw the last time out had no issue with the 7 second staging timeout. Not that I think the SC/turbo is a bad combo, just there are other ways around the assumed handicap.
The net loss doesnt increase as HP does, it stays the same. The SC doesnt increase hp usage unless the rpm or pressure increases as well. So, it would be the same 30hp @ 500, 1000, or 1500whp.