Originally Posted by donsolo
that dude in the 70s used to push his moped up hills when they got too steep.
how about discussing mods that'll give a 2 stroke extra torque rather than top end?
might be of some help here
Torque and 2-strokes!?
I think the best you can do is bunch the available power of a 2-stroke, through various means, to get a narrow powerband of maximum power. You'll never get a flat 4-stroke torque curve. Of course bunching power is a comprimise toward overall "streetability" or the quality of having a good setup for a variety of conditions. Sometimes you can only improve a weakness but you can't overcome it.
Don't take this as a condemnation of 2-strokes because this ignores the fact that a comparable performing 4-stroke will have twice the displacement. As any hotrodder will tell you there is no substitute for displacement. ;) IMHO, scooter prices are oriented toward displacement so you're looking at more money for a comparable performing 4-stroke. And deisels just don't have the zip of 2-strokes! But putting that aside, if you need low end grunt then I'd look toward the 4-strokes.