If you was on a backroad (i presume you mean a twisty one) then technicly a cheap supercharger conversion will be more fun than a cheap turbo conversion, as the s/c will have no lag, the turbo *might*, depending what sort of spec we talking about.

One thing people dont seem to get is on MOST superchargers you only get full boost at full revs, you dont boot it and you at full boost even at 1000rpm and it stays like that, it rises with the revs as its only 1 gear and works off engine revs, so with modern turbo once you in the midrange and beyond youl find the turbo is boosting MORE even if the supercharger is set to run the same peak boost pressure

You can technicly idve thought run a wastegate to bleed off pressure tho, possibly, so its mega high geared from the start, but bleeds off air once maximum has been reached, but i can only think of 1 ive seen like that i think

And dont forget youl get the same compressor surge with a supercharger, so it no point having big boost low down as the engine cant deal with it, same as with a turbo.

Anyone know the technical reasons why you cant run any overlap on S/C engines (so i hear?)? That must be a shitter too...