08-29-2020, 02:30 PM
Ha. Yea.
Been around for decades on the intake side of engines, both for intake manifold plenum tuning for engine breathing and occasionally tacked on chambers to the airbox path for intake audible sound note.
Less common on the exhaust side but some times you see chambers seeming randomly like a growth on an exhaust.
Or the ever classic muscle car H or X pipe.
For old school bikes like ours- usually just header design.
So we have 4-1 or 4-2
Does anybody make a 4-2-1 Tri-Y for our bikes?
Try explaining that to someone who isn’t into bikes or cars.
Umm yea.. so you have 4 cylinders, which technically have 8 exhaust valve port paths that combine at exit to 4 exhaust ports, combine 2 of those into -1 with the other 2 combined into-1, combine those two 1’s which makes another 2, then bring them to 1 ... what?
I wonder now- has there ever been a 16 valve engine, with 16 individual intake and exhaust ports.. no Y in the head. Would be prohibitively expensive and complex... as well as space concerns- but wonder how it would run.
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Been around for decades on the intake side of engines, both for intake manifold plenum tuning for engine breathing and occasionally tacked on chambers to the airbox path for intake audible sound note.
Less common on the exhaust side but some times you see chambers seeming randomly like a growth on an exhaust.
Or the ever classic muscle car H or X pipe.
For old school bikes like ours- usually just header design.
So we have 4-1 or 4-2
Does anybody make a 4-2-1 Tri-Y for our bikes?
Try explaining that to someone who isn’t into bikes or cars.
Umm yea.. so you have 4 cylinders, which technically have 8 exhaust valve port paths that combine at exit to 4 exhaust ports, combine 2 of those into -1 with the other 2 combined into-1, combine those two 1’s which makes another 2, then bring them to 1 ... what?

I wonder now- has there ever been a 16 valve engine, with 16 individual intake and exhaust ports.. no Y in the head. Would be prohibitively expensive and complex... as well as space concerns- but wonder how it would run.
Sent from my iPhone using Tapatalk
