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BMW E46 M3 Street Track Car (Now NASA GTS-3 Racer)


This photo set chronicles the complete build of our BMW E46 M3 from a repaired track casualty to a super-capable, well-mannered street/track car. Visit E46 Fanatics for a more in-depth discussion of the build and parts used.

Listed below are the parts used on this project:

Epic Motorsports S54 Software
EVOsport Power Pulley Kit
BimmerWorld E36/E46 Performance/Track Engine Mounts
E46 M3 Carbon Motorsport/CSL Airbox
S50 Euro/S54 EGR Plate
BimmerWorld Strapless Clutch/Flywheel
BWSport 3 Series Reinforced Urethane Transmission Mount Set
BimmerWorld/C&R Racing E46 M3 Oil Cooler
SPAL Electric Fan – 16″ Pull
E36/E46 Oil Cooler Diverter Valve
Motorsport Thermostat
Supersprint Version 1 Stepped Header
BimmerWorld E46 M3 Race Exhaust
Performance Friction Direct Drive Rotors
Performance Friction Carbon Metallic Racing Brake Pad
BimmerWorld EVO Stainless Steel Brake Line Kits
Solid Brake Guide
Brake Cooling Kit
E46 Carbon Brake Ducts
Moton Street Sport Dampers
Hyperco Spring Set
Ground Control Adjustable Camber/Caster Race Plates
Ground Control 3 Series Spherical Rear Shock Mounts
Ground Control Front Control Arm Bushings
Powerflex Rear Trailing Arm Bushing Kit
Powerflex Rear Subframe Mount Kit – High Durometer
Ground Control E36/E46 Adjustable Rear Lower Control Arm
Hotchkis Sport Swaybar Kits
Carbon Dive Planes – E46 M3
BimmerWorld Carbon E46 Splitter/Undertray
BimmerWorld Carbon Race Wing
BimmerWorld E46 M3 Rear Diffuser
D-Force LTW5 – 18×9.5
BimmerWorld Wheel Stud Package
Kirk Rollbar
SCHROTH Profi II 6-Point Harness
Racetech 4009W Seat
Racetech Mounting Bracket Set
Billet Aluminum Seat Floor Mount Adapters
Red Line High Performance Engine Oil
Red Line Transmission Lubricants – D4ATF
Red Line Gear Oil – 75W90
Red Line Water Wetter
Motul RBF 600 Racing Brake Fluid
AiM MXL Pista Data Acquisition System

This was a showpiece, but after an incident at Mid-Ohio, the insurance company put this car up for grabs. After a visit to Bassen Autobody, the car arrives ready for transformation.

First, sound deadening is remove for weight reduction and 4-point roll bar construction begins.

Our rollbar construction and painting is completed. With a little modification, we are able to retain factory seatbelts, necessary to achieve our goal of being a street legal track car.

A few damaged items remaining from the wreck are repaired as engine and aero performance mods are installed.

The rear of this E46 M3 gets an overhaul, using Powerflex urethane bushings for suspension and subframe. There won’t be a better time than now to install the Moton Street Sport Doubles .

Motons and PFC Direct Drive rotors are installed in the rear while the clutch and flywheel are replaced, along with a custom, single-pipe exhaust.

Up front, brake ducting is installed to cool our PFC Direct Drive rotors and 01 pads. The Motons are fitted in the front and wheel studs are installed. The factory engine fan, broken from the wreck, gets replaced with a quality SPAL 16″ puller fan.

Before installing our front bumper cover, carbon brake ducts are mounted in place. Up top, the Motorsport carbon intake plenum is installed.

The interior gets more work with a little more stripping and Racetech 4009W seats installed. Outside, D-force LTW-5 wheels and Nitto-01 tires are mounted.

This car will retain the stock brake calipers, using solid brake guides. For the UTCC, we will be using sticky Hoosier slicks.

The car gets an alignment before the dyno, weighing in under 3,000 pounds and our splitter/undertray is fabricated and mounted.

With the undertray mounted, everything is coming together and all work is being reviewed.

With the car almost complete, all that’s left is the dyno and decals for the UTCC.

After the UTCC is over the car begins a transition to a track dedicated car, beginning with carbon upgrades for better aero and less weight.

Since this is heading towards a track dedicated vehicle, the 4-point roll bar is replaced with a full roll cage. Also, an AiM MXL Pista dash is installed for track use.

With help from Epic Motorsports and some parts being changed, this car is ready for NASA GTS-3 competition along with one of its twins.


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