Quote:
Originally Posted by RMDZidane
Ceteris paribus, or all things being equal....space constraints, power expectations etc.. single turbo will always be better than two turbos. It's science :-) Empirical data from twenty plus years of tuners ditching twin turbos on their I6's and installing a single in their place also prove it. The 747 going extinct also proves it...in a way  |
Not necessarily true on the science side. With the exception of the EFR TiAl turbine wheel, the two smaller turbine wheels have a lower polar moment of inertia than a larger single turbine wheel. That translates to better transient response and slightly better efficiency.
That said, I absolutely adore I6 single turbos.