Hello all, I am new to the rotary world but am looking to dive in soon. This may be a silly question, but what does your power/performance depend on if you do not utilize a camshaft? I have done all my work on a ford v8, but I know the basics of making your everyday driver popular. Usually it's intake, exhaust, camshaft. Since the camshaft lets the air into the pistons and your regular 4 stroke engine, you buy a camshaft with a larger duration for time to let air into your engine (and yes I do know that this is not an exact science and your manifold has limits to it). But in a rotary engine where there is no camshaft, is there a set 'duration' where air is sucked into the combustion chamber? what limits the amount of air pulled into the chamber? Just the air intake? That would almost make sense, but then once you have such a high flowing intake that completely fills the chamber every time, where do you go from there? Boost? Tuning?

I ask this question as I would love to buy another project car this spring, and have it be a rotary engine, but I love fast cars, and I have no idea what go fast goodies you would put onto a rotary engine after you do an intake and exhaust.

Any response helps, thanks.

 

By design, after external bolt ons and tuning you can't extract any more power without opening up the engine (taking it apart and opening the flow hehe). To get the most power out of a n/a, you would go with high compression rotors and porting the housings. Otherwise its boost, or adding more rotors

Here's a good article explaining porting and what it does. https://speed.academy/how-rotary-engine-porting-works/

 

The ports position, size and shape are the closest analogy to cams on a rotary.
, street port or extended port is warm, bridge port or race port is hot, and peripheral port is wild.

 

And not much in the piston world responds to turbocharging quite like a peripheral port rotary.
Good book to explain the rotary design and basic reliability and performance modifications....
And if you're considering a 13bREW this might be of some interest....
https://www.rx7club.com/3rd-generati...added-1104322/