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30.11.2006: Dyno
A torque and horsepower graph from a Dynojet dyno, taken at ambient 22°C (71°F), 29.4 in-HG. The shop only had a small portable fan, which limited the car's performance on the dyno. It only held 15-16 psi of boost instead of its usual 18-19 psi, and started to drop off at just 4300 RPM. As the result, the top figures measured were 246 whp and 309 ft-lbs at the wheels. Accounting for a 12% drivetrain loss, it gives 280 hp and 350 ft-lbs at the crank. The real world performance in more favorable conditions is estimated to be around 300-310 hp.

Our 1995 Saab 900SE turbo convertible project. The goal of the project was not to build a supercar, but to grow a car that's a easy to live with. It had to be reliable, fast, have predictable handling and good everyday drivability -- all those qualities that would let us enjoy it for a few summers to come.

Some of the key steps were to improve the chassis by installing better suspension components, reinforcing the steering and tightening up the body. The engine has been rebuilt for larger displacement (the proven Saab 2.3L design) and tuned for higher output with a custom Nordic stage4 ECU. This in turn called for a newer and stronger gearbox and a clutch to match.

The exterior remains largely untouched, except for later style transparent blinkers and removed chrome bumper strips. There are no plans for installing any body kits or otherwise enhancing the appearance of the car. It will remain stock from the outside. Period.

Another point of the project was to use only off-shelf parts that are easy to find, install and replace. Having no custom built hardware could also serve as an example of what could be achieved within a short timeframe on a reasonable budget and be a guide and inspiration to others. We maintain a complete upgrade and service log explaining every bit of work performed on the car, as well as maintenance, expenses and other related items.


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