i think that the s would have the advantage over the sw. but thats a very biased opinon, me dont knowie much about mr2's.

anyhoo, i'd strongly recommend keeping s15 engines in s15 chassis, s14 engines in s14 chassis, and s13 engines in s13 chassis. if you want to put an s15 engine into a 14 or 13, you will need a modded driveshaft, which will be a bish. s15's six speed trannys aren't all that, they just have a "whoa" factor. s14 engine into an s13 chassis works without that much hassle, but it isn't worth the money.

If you want more power out of an sr, go with a bigger turbo. gt2835 :drool:

$5000 is kinda pricey. i'd go to srswap.com for a better deal on an engine.