Umm, yeah there are plenty differnet sr20de engines. If you get one from Britain(EDM) it has a higher compression = more hp. Then you can get a sr20det. these are stock Nissan engines from overseas that come stock with turbos, the GTi-R engine more aggressive than the bluebird engine. If you want to get an sr20ve(it has NEO VVL(very similar to Honda vtech)that provides power throughout pwrband) these are easy to get, I think it is 187 hp. The rarest is the sr20vet which is a turbo NEO VVL. 280 hp I think, not sure. This is extremely rare and brand new in Japan. Good luck finding one. The sr20de engine here in the US is the weakest variant (correct me if I am wrong) of the sr20 engine. I know someone will post for you to search because this info is all over the forums but I thought I would tell you, I am trying to become a postwhore anyways so this is helping me. Hope I helped you. If this isnt enough you can prolly look in General for the FAQ's on stats on all engines that can be swapped into your car. Good luck