BMW 2002 Turbo

BMW 02 E20 Turbo (1973)

Engine: BMW M31 2.0 170 PS
Traction: RWD (rear-wheel drive)
Gearbox: manual, 4-speed (H)
Suspensions: strut+arb (front), semi-trailing arm+arb (rear)
Fuel capacity: 70.5 liters
Driver's aids: none

The world oil crisis in the '70s changed the nature of the automobile, having a large impact on high-performance vehicles and racing cars. Using greater displacement to generate more power was no longer in step with the times.

The automotive world's solution was the turbocharger, achieving forced induction of the air-fuel mixture using a turbine driven by the energy in the engine's exhaust gas. Since turbo technology was normally used in airplanes, BMW had a rich base of practical knowledge from the beginning, having its original roots in manufacturing aircraft engines. So, BMW decided to utilize turbo technology in its own mass-production cars.

As a result, the 2002 turbo emerged in 1973. Built on the basis of the 2002 tii, the top model in the 2002 line, the 2002 turbo added a KKK-made turbocharger to the existing 1,990 cc SOHC inline-4 to achieve a whopping 169 HP maximim output. This represented an impressive 39 HP increase in power over the normal 2002 tii. Since the curb weight remained essentially unchanged, the 2002 turbo was able to achieve an astonishing top speed of 131 mph from a 2-liter engine.

The suspension and chassis were also strengthened, and spoilers were added to the exterior. One thoughtful and amusing little touch was the addition of the word "turbo" on the front spoiler, written in inversely so that a car in front would be able to read the word in its rear-view mirror and identify the 2002 turbo as a high-performance vehicle.

Unfortunately, the 2002 turbo had higher-than-expected fuel consumption and the turbocharger was unreliable, so sales weren't what BMW had hoped for. Production lasted only a year, with a mere 1,672 vehicles built.


CHANGELOG

v4.0 released 30.11.2020
- new engine torque
- new suspensions geometry and setup
- new aero with height sensitivity
- corrected engine limiter, inertia and braking torque
- tweaked turbo config
- corrected car total mass
- revised car polar inertia
- corrected steer lock and ratio
- corrected fuel tank position
- tweaked differential setup
- adjusted gearshift times
- tweaked setup options
- removed flames


v3.2 unreleased 12.08.2020
- adjusted engine inertia and braking torque

v3.1 updated 12.05.2020
- wipers added by RealAKP
- fix for license plate by RealAKP
- regenerated LODs kn5 files
- updated previews

v3.0.1 hotfix 12.05.2020
- corrected front and rear unsprung mass


v3.0 updated 11.05.2020

Physics
- new suspensions setup
- new dampers setup
- new tyres v10 (ACCR v2)
- corrected front caster angle
- tweaked car polar inertia
- increased differential preload torque
- corrected gear ratios (II, R)
- corrected engine inertia and braking torque
- decreased transmission power loss
- increased fuel consumption
- tweaked fuel tank position
- increased FFb multiplier

Features
- turning lights
- more dashlights

Visual
- totally reworked materials and shaders
- new high resolution textures for interior
- corrected tyre radius
- adjusted graphics offset and pitch rotation
- fixes for steering wheel and central mirror by RealAKP
- fixed right tyres UV mapping by RealAKP
- regenerated license plates
- added VAO patch thanks to RealAKP
- added 3D license plate (CSP only)
- added exhaust smoke (CSP 0.1.47 or above only)

Other changes
- adjusted colliders position
- updated previews


v2.0 updated 12.02.2020
- new aero (ACCR v2)
- new engine torque curve
- new suspensions setup
- new tyres v10 (vintage, street, semislicks)
- tweaked car polar inertia
- corrected steer ratio
- adjusted fuel consumption
- adjusted gear ratio to match mod tyre radius
- added visual damage (front bumper and bonnet)
- added deforming bonnet (only with Shaders Patch)
- tweaked shaders
- updated preview
- regenerated LOD files
- fixed lights
- moved config file into main folder structure


v1.0 released 04.02.2019
- initial release
- new aero (ACCR v2) with spoilers
- new engine torque curve
- new tyres v10 (vintage, semislicks)
- reworked suspensions setup
- decreased max braking power
- corrected final ratio with tyres compensation
- adjusted colliders config
- added odometers (main, trip)
- tweaked 3D driver animation times
- adjusted sounds config
- tweaked onboard cameras
- added LODs .kn5 files
- reworked shaders
- adjusted lights config
- redone skins and added missing official colors
- added baked AO map by RealAKP
- updated skins liveries icons
- updated ambient shadows
- fixed analog instruments (rpm, fuel)