Check out Enjuku Racing's SR-Powered S13...
http://www.enjukuracing.com/racecar.html
Probably cost a bundle... but getting your power up that much, what wouldn't? (ugh... don't mention v8 swaps)
Unsolicited advertising is a violation of the rules, not like that matters in here. You can't be serious when you say the SR isn't worth swapping for or has no potential...