While an electronically controlled engine makes spot-on tuning possible, the ECU Toyota employed on the 2JZ-GTE isn’t reflashable. In fact, replacing the engine’s ECU with an aftermarket stand-alone version or adding a piggyback ECU is one of the first upgrades enthusiasts make (Motec,...
Both are very capable engines from Toyota with quite a following in the world of tuning.The 2JZ makes more power, is newer has a larger capacity and on paper is clearly the better engine of the two.But in the real world we need to look at what the engines are being used for before ...
The 1st generation sold in the US would be the "Classic" and the 2nd generation would be the "Iconic" (Taken from John's Stuff - Toyota Prius and more) Both 1st and 2nd generation Prii used a 1.5 litre engine (taken from the Yaris/Echo) but tuned for efficiency. Mpg will be ...