I found these engines to put on my car: D15B, D16Z6, D16A could you tell me your rating of these engines ? I have interesting in 4 positions, the most important is the 1st position, less important is the 4th question. 1) power with VTEC? 2) power without VTEC and torque (how easy to use it in a traffic jam?)? 3) and economy of these engines (petrol is very expensive, I don't live in the US)? 4) how easy to install it on my car (I've got coupe civic-6 with D16Y7) ?