rx7_ben

not trying to argue with you scathing but do you have any idea what I meant by mechanical noise? I dont think you did, I meant the sheer ammount of moving parts in the valvetrain. Also there is all alloy rotary engines available, and I severely doubt a sr20 would weigh less that a 13b-rew even though it does have cast iron plates. Also, rotary engines actually make decent power at low rpm but fail to make large ammounts of torque (due to how little is actually moving mass in the engine). Anyway I admire your intelligent and thorough response as you probably know as well as I do some of the crap that comes out of people's mouths about rotary engines haha

imagine the 13b-rew you could have built for $7.5k! would have been a monster, and on another note just remember the following, reciprocating engines have the following shortcomings: (1) Because of the reciprocating parts, vibration, noise and power loss become greater as engine revolutions increase (2) Because of its cranking mechanism, it is heavy and large compared to power output. (3) Because of its intake and exhaust valve mechanism, it generates mechanical noise and this mechanism requires many parts. whereas rotary engines suffer from none of these shortcomings, and just remember that rotaries dont have shorter engine lives than others.. I've personally seen them pushing upwards of 450,000km. But like anything if they are thrashed or modified excessively they arent gonna last forever and be an ideal family car are they? but fundamental design flaws aside, the gtr is a very aesthetically pleasing and well performing car which has proven itself, so it all comes down to your personal preference and what suits your lifestyle best.