Complex Engine Illustration Grid with Technical Constraints

2x2 grid, 16:9 do this for 4 complex legendary engines: K₁ COMBUSTION⇄LINKAGE COUPLING (master ::5) the inferred cycle (intake timing, AFR, spark point, scavenging) must be consistent with the linkage (crank throw, rod ratio, cam profile, pushrod geometry): cam_profile ⇒ valve_events ≡ stated intake/exhaust timing; V_angle + crank_throw ⇒ firing_interval; pushrod_geometry ⇒ OHV/OHC truth. ¬K₁ = cam contradicting valve timing / throw contradicting V‑angle. K₂ THERMAL TRUTH (::4) cooling strategy matches heat load: air‑cooled ⇒ fin ∝ Q_comb (deep fins); liquid ⇒ radiator, sparse fins; oil flow + exhaust shielding consistent with output. ¬K₂ = tiny fins on a hot air‑cooled motor / fins on a liquid‑cooled block. K₃ HIDDEN‑CRAFT MACRO TRUTH (::3) the macro callouts (ring gaps, bearing surfaces, valve seats, carb jets) show REAL tolerances consistent with the engine's character (performance ⇒ tight clearance, big jets); callouts point at genuine detail, ¬decorative circles. ¬K₃ = callout pointing at nothing / wrong jets. K₄ EXPLODED CROSS‑SECTION COHERENCE ONE central engine, exploded + sectioned along correct assembly axes, parts in correct order/orientation (mentally re‑assemblable); cylinders/pistons/crank/cam/valves/carbs separated. ¬K₄ = parts in wrong order/orientation / impossible assembly / multiple engines / clutter. K₅ ACOUSTIC + STYLE DNA + BRAND DISCIPLINE acoustic signature inferred (firing rhythm, exhaust tuning) and represented (restrained firing‑interval/waveform diagram); style blend = C4D .35 + catalog .25 + cross‑section .20 + workshop .15 + alu/chrome .10; deep charcoal/warm metallic bg; monospace technical type; restrained callouts; premium negative space; brand omitted unless inevitable. ¬K₅ = neon/hologram/VR / cheap glossy / wrong type. η HONEST METAL hyper‑real machined textures (machining marks, casting skin, chrome, polished alu); refined lighting; ¬plastic shine · ¬watermark · ¬low‑poly · ¬messy garage · ¬stock photo. FORBIDDEN (your NEGATIVE + ::‑4) = ¬K₁∨¬K₂∨¬K¬K₄∨¬K₅∨¬η