Quote Originally Posted by Quinn View Post
Emilio,

Did you do any testing without the venturi fitted in the Maruha? It seems to work well on a stock engine, but I wonder if it chokes things up on a more modified engine with compression, cams, ITB's, etc. I was going to pull mine out and maybe re-dyno. Curious as to what your thoughts are.
Maruha offers a 45,50 and 55mm venturi. Standard is the 50mm which is what Saiji at Maruha suggested for our project when we consulted him. For a 275+hp Rotrex build we might try the 55mm.