Let me introduce everybody to the upcoming Technique Tuning E46 non-M Turbo Kit. This kit has been in the making for a long time, and is in the final stages of development and testing. Our test vehicle is a 2001 330ci 5-speed. In stock configuration, the car dynoed at 196rwhp and 198rw ft-lbs. After design, installation, and initial tuning of the turbo kit, the power numbers are now 318rwhp and 299rw ft-lb with 8.5psi of boost. The 8.5psi of boost was achieved using an electronic boost controller (not included with the kit). Running only off of the wastegate's 6psi internal spring, the power numbers were 289rwhp and 267rw ft-lbs.
The kit will be a total bolt-on package. No exhaust welding will be required; no bumper cutting will be needed. There is no ground clearance lost with the installation of the kit. The factory splash shield and brace are retained under the engine. The air filter is mounted high and away from possible low-level standing water. A Garrett designed T3/T4 turbo is used to provide reliable boost, while an external wastegate expels unneeded exhaust gasses to regulate that boost. The large front mount intercooler mounts behind the factory bumper using a laser cut and CNC bent bracket. Our proven blow-through mass air system is retained, which also allows use of a blow-off valve (included with the kit).
Of course, tuning is done via reflashing of the factory ECU and larger fuel injectors. The vehicle's original smoothness is kept. Driveability is just like stock. Until the throttle pedal is pressed that is, as that's when the fun really begins
Full boost is achieved by ~2600rpm on the street. Part throttle boost is virtually instantaneous too, giving the car a V8-type of feel (as can be seen by the torque curve's shape).
Below are several dyno graphs of the results thus far. Here are the details for the runs:
2001 BMW 330ci 5-speed
Technique Tuning Turbo Kit (6-8.5psi)
93 octane fuel
same dyno used for all runs
same vehicle used for all runs
stock exhaust resonator and muffler
stock vs 8.5psi run
6psi vs 8.5psi dyno run
stock vs 8.5psi conditions
We will be making minor tweaks to some of the components, and doing some more tuning to see if more power can be extracted. Pricing has not yet been finalized, but will definately be competitive (just like our E36 turbo kits). If there are any questions regarding the kit, feel free to contact me at email@example.com