The online racing simulator
Expanded Forced Induction System Options
LFS already offers us the ability to produce turbocharged engines. However, the simulator would benefit from the addition of other forms and arrangements of force induction for modders to increase the accuracy of mods mimicking real vehicles, introduce more variety in the possibilities for fictional builds, and improve the audio and driver aspects of mods.

To quickly summarise what I'd be proposing as options are:

- Compressors/Superchargers
- Multi-Turbo Setups (e.g. parallel, sequential)
- Twin-Scroll Turbocharging
- Compounding Boost (e.g. turbo + supercharger)
- Electric Supercharging & Electric Assisted Turbos

Implementation Breakdown:

Superchargers:
There are two methods of implementation: one involves the implementation of options that influence the produced sound, the other involves simulating the different types of supercharging as options in the editor that affect engine output delivery.
Roots-Type: Instant boost, linear response, but less efficient at high RPM.
Twin-Screw: Similar instant boost but more efficient and cooler intake temps than Roots.
Centrifugal: Spools with RPM like a turbo, giving a progressive boost curve with minimal to no lag.

Turbochargers:
Parallel Turbos: Will function identically to a singular turbo; however, they should both alter the simulated noise while allowing for identical turbos to spool at a much faster rate than a singular larger turbo for the same amount of boost.
Sequential: Should provide up to 4 turbos running at different spool rates, allowing for multiple turbos to be optimised for different points in the powerband.
Dual-Scroll: Functions similarly to a twin-turbo setup, however, providing a much more linear exchange between the optimum points on the powerband for the turbines, effectively increasing the rev range.

Compound Forced Induction:
Turbo + Superchargers: Self-explanatory. (We love the Delta S4)

Electric Superchargers/E-Turbos:
Quiet little guys at low rpms due to the spooling assists with electric motors. (Not quite certain about how they work differently.)


Final Notes:
These I'd imagine would be difficult to implement into LFS in its current state. If anything were to be implemented from the list, I'd be wishful for supercharging to pay a visit to LFS in the future, rather than using the cobbled-together shift+A sound modifications.
Attached images
Screenshot 2025-09-16 004045.jpg
psc-mini-supercharger-service_1024x1024.jpg

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