^ Maybe an Integra Type R can take a SR20DET-powered silvia but the sr20det is a lot cheaper than the b18c type r engine, and almost the same speed. I'd say balls out performance engine is the VQ35DE engine (287 out of a 3.5 liter V6 with a lot of possibilities is pretty damn good), RB26DETT, LS1's, 2jz's, 4g63's (not too reliable though), and F20c's. I'm not saying the H22C is a bad engine, quite the opposite it's good, but it's not balls out performance designed. It's a 4-banger gas efficient engine also, which isn't a bad thing. My KA24DE engine is also a 4-banger gas efficient engine with a lot of possibilities, but I won't say it's an all-out performance engine.