It's because rotary motors have an oil injection system. If they don't inject oil to lube the apex seals you motor will self destruct. Just keep an eye on your engine oil level because they are designed to use oil, also, if you plan to run a rotary hard put a pint of 2 cycle oil in your gas from time to time. You'd be doing yourself a favor.
An Rx7 is a model of a car that Mazda makes. All cars can smoke lightly through the exhaust system. If the smoke that is coming out becomes excessive or black consult a mechanic.
not really sure could be fly wheel or counter balancer out of alignment (broken keyway)
lower rpms use less gas higher rpms have more power
Turbos gone bro :S
major vacuum leak?
no
Blown h20 seal in engine or turbo !!
did they want freedom
Sounds like you are getting engine compression in to your oil jacket.
Obviously depends on RPMs. Normally 15-20psi at idle. Could be as high as 30-40psi when the engine is under high RPMs.
Because your motor is spinning faster at higher speeds causing higher rpm's
Almost none whatsoever at low RPMs and maybe 5-10 h.p. at high RPMs.