see, you're getting into the old, "let's pull the power steering, AC, etc." line. don't use that as a cop out, please.
you can keep AC, powersteering, etc. in an S13 w/ an SR and still be able to roll on a Z TT. i'd like to see you do all of the mods that you would be able to do with an SR WITH AC, PS, and all that, and still be able to get all of that power out of that.
the most powerful Z TT that i've seen so far with full interior, PS, AC, EVERYTHING was putting down about 580RWHP. now, that's AWESOME numbers. but not as good as what an SR could make. it's not that you'll have more room with the SR. it's also because the SR is much easier to mod.
now, i don't recommend putting an SR in the Z. hell, i was pretty surprised people did that.
and no, swapping an SR for the VG30DETT is not like putting a V6 into a Viper. the Viper has a V10. so if you were to make that comparison. it would be more like, "it's like putting a V8 in a Viper".
