Carb inlets of the 49 inch 3 Holers and other stuff I find weird?
Being new to the 49 inch OMC 3 Holers having bought a new NOS complete block and all the parts from its blown up predessor fishing engine, looking at carb inlets sure has me puzzled. Like why are these casting obstructions that change direction in the carb base flow are so abrupt? It would seem something could really be improved upon there to make tunning better? Have any improvements been made in this area to improve air/fuel streaming or was it all very good to begin with even with these kinks? Or is this forbidden territory rules wise?
I have set Mercury Twister racing sled reed boxes from a 440 that in effect are in front of the piston port where these sleds used 1 Tillotson HD per cylinder. The reed boxes must have been installed to inprove on midrange power that would have been installed because of piston port spit back problems. Even these reed boxes have a split bar immediately under the carb dividing the air/fuel stream in 2 to saturate both sides of the reed box before going into another HD carb sized inlet port facing the piston port. All this air/fuel stream splitting and changing air/fuel direction must ultimately affect overall power negatively would it not. I am actually thinking of bolting a Mercury reed box like these on to an Anzani and then bolting the Vacturi on top of it because that engine has tremendous spit back at low to mid range high side rpms where the motor finally catches up and does not let the spit back come out of the engine anymore.
What are your thoughts?