[EricH]

Originally Posted by Chris is me

A 1:1 gearbox would basically be two gears of the same tooth count. What about that arrangement precludes acceleration at all?

CIM torque in relation to speed, if there was a large load (say, in drive). As it's a lighter load, that's less of an issue. I will note that when 330 ran a big CIM for a shooter in '06, we did apply a small-ish reduction, in two stages (one belt, one #25 chain), and had zero problems.