Actually fuel consumption with the V6 engine is lower. Depends on your driving style of course. Reason being, better torque means you don't have to rev as high before upshifts and can cruise under 3k rpm comfortably. Upsize the rear wheels and you can reduce the revs even more.
Weight wise if you get MZ series engine the weight is about same as a fully kitted 3S-GTE (ie engine + turbo + ancilarries). But they're expensive and with later models you have to deal with the drive-by-wire throttle.
The VZ series is cheaper but they're heavier (iron block vs alu block on MZ). On the plus side you get a standard cable-driven throttle, and thicker conrods.
The ultimate V6 to swap would be the new GR series engine. 280hp NA stock.... *sluurps*
Weight wise if you get MZ series engine the weight is about same as a fully kitted 3S-GTE (ie engine + turbo + ancilarries). But they're expensive and with later models you have to deal with the drive-by-wire throttle.
The VZ series is cheaper but they're heavier (iron block vs alu block on MZ). On the plus side you get a standard cable-driven throttle, and thicker conrods.
The ultimate V6 to swap would be the new GR series engine. 280hp NA stock.... *sluurps*