Putting a 5EFE or 5EFHE would be different... I'm sure there's maybe only 5 or 10 people in the UK who have done this in a Starlet! Then if you're really wanting power a 5E is a great base as with the extra displacement you can choose a larger variety of turbo's for forced induction, and I'm sure you could get 300bhp easy! (...well not easily, a lot of sweat, tears and money I'm sure) On a side note -- the production MR2 1600cc supercharged engines only put out ~150bhp.