Aiming for the best sound in the Lexus LC500 (crossplane V8), we redesigned the exhaust system to suppress exhaust interference and explored its feasibility, including the layout design of the exhaust manifold and verification of the undercarriage of the actual vehicle.
00:00 Can we get closer to the Ferrari sound with an exhaust manifold?
01:07 Checking the current revving sound (dissonance due to exhaust interference)
03:03 Exhaust pulse and causes of variation in the V8 crossplane
04:25 Why a simple "equal length exhaust manifold" cannot solve the problem
05:37 Ideal pipe layout to prevent exhaust interference (simulation)
07:16 Consideration of a realistic layout considering engine bay fitment
10:55 Concept of LC500 undercarriage space and hand-bent exhaust manifold fabrication
#engineer #mechanic with discerning ears