Are there any benefits of running independent throttle bodies with a super/turbocharged engine, as opposed to running a single throttle body on the same engine?
If so, what are the benefits (and how extreme are they)?
Static characteristics of engine
Hypothetically, the engine is as follows:
- 2000 cc
- 4 cylinder inline
- DOHC 16v
- Single turbocharger
The turbocharger is, hypothetically, as follows:
- Inducer diameter of 80 mm
- Exducer diameter of 120 mm
- Wastegate at 8 psi
Variable characteristics of engine
The single throttle body will be a manifold going from four 20mm chambers to a single 40mm chamber in a 4-1 fashion, with a butterfly valve on the 40mm chamber to give throttle control.
The independent throttle bodies will be 20mm chambers each with a butterfly valve inside to give throttle control.