Much like the RB26, the 2JZ has an 86mm bore but actions up the stroke from 73.7mm to 86mm. This is where the extra .4L of displacement comes from. As opposed to the RB26, the 2JZ arrived with a sequential turbo setup, meaning it has a Considerably broader energy band. https://madbookmarks.com/story12904126/examine-this-report-on-13b-rotary-engine-for-sale