Apex Extreme Rotary (1-6 Rotor) & Universal Cross-Vehicle Aero

An extreme Wankel rotary powertrain and universal cross-vehicle aerodynamics overhaul for BeamNG.drive (beamng-drive, solo play).

What Players Get

1. Stackable 1-to-6 Rotor Wankel Engine Builder (Ctrl+W Parts Selector)

Equip Apex Extreme Rotary (1-6 Rotor) & Universal Cross-Aero Hub in any vehicle's Additional Modification slot (or License Plate Design slot) to unlock 8 independent, stackable rotary powertrain sub-slots:

• Rotor Count Selector (apex_rotary_rotor):
  • 1-Rotor 654cc (13B-Single) Lightweight Spec
  • 2-Rotor 1.3L (13B-REW) Twin-Rotor Turbo Spec
  • 3-Rotor 2.0L (20B-REW) Eunos Cosmo Triple-Rotor Spec
  • 4-Rotor 2.6L (R26B) Le Mans 787B Quad-Rotor Spec
  • 5-Rotor 3.3L (33B) Billet Custom Five-Rotor Spec
  • 6-Rotor 3.9L (39B) Billet Monster Six-Rotor Spec
  • Keep Vehicle Stock Engine (Aero-Only Mode)
• Porting Stage Selector (apex_rotary_porting):
  • Stock Factory Side Port (Smooth street idle)
  • Mild Street Port (Early intake opening, crisp response)
  • Large Street / Extend Port (Delayed closing, high-flow street/strip)
  • Half-Bridge Port (Secondary auxiliary bridge, distinct rhythmic brap chop)
  • Full Race Bridge Port (Primary + secondary bridges, aggressive lumpy brap idle)
  • J-Port / Monster Bridge Port (Cut to water jacket edge, violent idle chop)
  • Semi-Peripheral Port (Side + peripheral housing intake ports)
  • Full Peripheral Port (Le Mans spec radial housing port, extreme overlap brap & 14,000+ RPM top-end power)
• Intake Manifold & ITBs (apex_rotary_intake):
  • Cast Aluminum Street Plenum, 55mm Carbon-Horn Slide-Valve ITBs, or Billet 12-Injector Methanol Mechanical Rail
• Stackable Forced Induction — Turbocharger (apex_rotary_turbo) + Supercharger (apex_rotary_supercharger):
  • Turbo Stage: Naturally Aspirated, Street Single HT18 (12 PSI), Sequential Twin-Turbo (18 PSI), Big Single Garrett GTX42R (32 PSI), Compound Twin-Turbo (46 PSI), or Pro-Mod 98mm Billet Precision Drag Turbo (62 PSI)
  • Supercharger Stage: None, Eaton Roots Positive-Displacement (14 PSI), Whipple 3.8L Twin-Screw (24 PSI), or ProCharger F-1X Centrifugal (30 PSI)
  • Twincharging: Because Turbocharger and Supercharger occupy separate stackable slots, equipping both simultaneously activates native compound Turbo + Supercharger Twincharging (instant low-RPM positive-displacement torque + massive top-end turbo boost).
• Apex Seals & Internals (apex_rotary_internals):
  • OEM Cast Iron 2mm, Two-Piece Ceramic 2mm, Carbon-Composite 3mm Drag, or Unbreakable Billet Titanium Apex Seals & Lightened Scalloped Rotors
• Rotary ECU & Brap Idle Controller (apex_rotary_ecu):
  • 9,000 RPM Street ECU, 10,800 RPM Track ECU, 12,500 RPM Pro-Brap Idle Controller, or 14,000 RPM Unlimited Formula Rotary ECU
• Rotary Exhaust & Flame System (apex_rotary_exhaust):
  • Street Dual-Resonated, Straight-Pipe Titanium Megaphone, or Open-Header Inconel Flame-Spitter

2. Authentic Wankel "Brap-Brap-Brap" Idle Chop & High-RPM Scream

• Powered by lua/vehicle/controller/apexRotaryAeroController.lua, which synthesizes multi-harmonic port-overlap angular velocity oscillations (idleAVReadError and idleAVStartOffset) and real-time FMOD exhaust gain/muffling modulation (setExhaustGainMufflingOffset) scaled to your chosen Porting Stage and ECU Brap Controller, plus overrun high-RPM rotary flames.

3. Universal Cross-Vehicle Aero System (Any Wing on Any Vehicle)

• lua/ge/extensions/apexRotaryAero.lua hooks BeamNG's JBeam loader (onJbeamLoadingPhase1 & onJbeamLoadingPhase2) and mounts cross-vehicle 3D .dae/.cdae resource directories from the player's installed copy of BeamNG.drive across all vehicles.
• 19 Cross-Vehicle Wings & Splitters from the Nomi GTT/GTWX/Hillclimb 3A & 3B, Civetta Scintilla (Performante, Swan-Neck GT3, Dark Owl), Civetta Bolide (Group 4, 350 GT, Roof Spoiler), Hirochi SBR4, Cherrier Vivace (TCR & WRC), ETK K-Series GT4, Ibishu 200BX, Ibishu Covet MR, and Bruckell Bastion.
• Mount them in 4 Stackable Universal Aero Slots (Primary Rear Wing, Stacked Secondary Wing, Roof/Cabin Wing, and Front Time-Attack Splitter) or directly inside any vehicle's native Spoiler slot.
• Fine-tune wing Fore/Aft position, Height, Angle of Attack (deg), and Downforce Multiplier (x) live in Ctrl+W -> Tuning.

Included Showcase Preset

• Launches directly into the Ibishu 200BX — Apex 4-Rotor R26B Bridge-Port Twincharged Time-Attack (Stacked Cross-Aero) configuration (vehicles/bx/apex_rotary_4r_timeattack.pc).

License

Released under the MIT License. Open for remixes on Melty.