I'm an avid specialty car fanatic.
I'm in the process of obtaining an ariel atom like chassis and plan of using a 3 rotor rotary engine.
How can I make the 3 rotor as trim as it can be? A more compact engine and less clutter. Is this possible in 3 rotors?
Yes fuel injection not carb.

Thank u

 

Keep it n/a and choose a compact intake setup that basically turns 180 degress and lays flat and close over the top of the engine.

What chassis did you end up buying? RCR builds a nice version. Check out exocars dot net if you haven't already.

 

Buy my 4 rotor and put it in there N/a. 500hp and call it done

 

If length is also an issue, you could use a short crank kit with either 13b or 12a parts.