First project: ī99 Saab 9-3 Viggen Convertible
This is the first Viggen I worked on. Itīs a MY 99 Saab 9-3 Viggen Convertible in black with flame ochre interior
Being a Saab show car, it has not been registered for road use before 17th april 2000. First registered owner was Saab of Germany.
I bought the car in december 2002. It had covered 52.000 km at that time.
Being a MY99, it has 225 hp and 342 Nm of torque in stock condition, but it has been modified quite a lot (290 hp/ 440 Nm). Here is a dyno history of every tuning step I performed.
Those are the only purely esthetic modifications to the car. All other modifications serve the purpose of improving the carīs street and track performance.
Wheels, suspension and brakes
- Stock springs have been replaced with H&R springs to lower the car. This really transformed the chassis, which is quite capable now even with the stock Sachs dampers (which are exclusive to the Viggen).
- KIC Steering Rack Brace Kit, ordered from Taliaferro (USA).
- Summer: 18" aluminium-magnesium wheels by Hirsch Performance, 225/40 R18 Yokohama AVS Sport (semi-race) tires (will be replaced by standard street tires as soon as worn out).
- Winter: 17" aluminium-magnesium wheels by Hirsch Performance, 215/45 R17 Pirelli W240 Snowsport tires.
- Track: 17" aluminium-magnesium wheels by Hirsch Performance, 225/45 R17 Yokohama Advan A032R DOT-legal competition tires.
In november 2003, the original 308mm front brake has been upgraded using Ferrodo DS2500 performance brake pads
In may 2005, the original front brakes have been upgraded using 332x28mm Hirsch Performance brake discs, Porsche 996 GT3 4-piston aluminium-monobloc calipers made by Brembo and custom made steel caliper carriers made by Frank Grauer.
After major problems with brake squeal and poor track performance, the Hirsch Performance brake discs have been replaced with 323x32mm Porsche 993 biturbo brake discs with custom made bells made by BSP
and the calipers have been modified by BSP in july 2005.
In september 2006, an all-new brake kit by BSP has been installed (323x32mm Porsche 993 biturbo brake discs with custom made bells, modified Porsche 996 GT3 4-piston aluminium-monobloc calipers made by Brembo and custom made aluminium caliper carriers) and
the original 286x10mm rear brakes have been upgraded using 300x20 Saab 9-5 Aero MY2002-now brake discs, cross drilled Porsche-style by BSP, Saab 9-5 Aero rear calipers and custom made brake lines by Taliaferro.
Look here if you want to know more about the Steering Rack Brace Kit.
Look here if you want to know more about the Porsche brake installation.
Look here if you want to know more about the rear brake upgrade.
Engine, intake and exhaust sytem
- Stock spark plugs have been replaced with NGK BCR8ES.
- Stock air filter has been replaced with JR high flow air filter.
In june 2003, the stock ECU has been upgraded with a Stage One ECU from Abbott Racing, UK
In august 2003, I installed a Stage III Tuning Kit by MapTun Performance, Sweden
, which included:
- 3" Downpipe by JT
- 3" Race Cat
- 3" Cat Back System by JT
- MapTun Stage III Software
I also installed a calibrated Boost Gauge
by Racimex to be able to monitor turbo boost.
After some problems with oil consumption, the MY99 B235R engine has been replaced with a MY2004 B235R engine during winter 2003/2004 after 75.000 km
Look here if you want to know more about the work performed on my car by Johann Heuschmid.
- The pistons and rods have been fine-weighed, and the crank shaft has been fine-balanced.
- The original cylinder head has been gas flowed by Johann Heuschmid himself (intake and exhaust ports polished, valves polished, seats ground, valves ground in).
- At the same time, the Viggen intercooler has been replaced with a big race intercooler, custom made by AM-Works in Finland.
- Also, a new Fichtel & Sachs Viggen clutch kit had to be installed. This clutch kit is supposed to be stronger than the Saab OE clutch kit for Viggen.
The new engine was then broken in using stock software and not reved beyond 4.000 rpm for the first 5.000 km.
In may 2004 (80.000 km), the car was taken to Hirsch Performance
, Switzerland. There
Look here if you want to know more about the work performed on my car by Hirsch Performance.
- the MY99 intake pipe from airbox to turbo has been replaced with a MY2000-2005 Saab 9-5 Aero intake pipe (the big Hirsch Performance intake pipe, which was supposed to be installed did not fit).
- the ECU was custom tuned by Tommy Utengen and Renato Boldrini first on the dyno, then on the street.
In november 2004 (89.000 km), I installed a new Hirsch Performance 2.75" stainless steel cat back system.
Look here if you want to know more about the exhaust modification.
In october 2005 (110.000 km), the gearbox has been rebuild by Heuschmid, using original Viggen parts and a special upgrade kit designed for the Hirsch 9-5 Troll R gearbox to make it stronger, modified to fit the Viggen gearbox (which is different in many parts from both the 9-3 and the 9-5 gearbox).
Future plans for the car include:
I sold this car in november 2006 after owning it for nearly 4 years.
Here, you will find some pictures of this car.
© 2005 - Philip Schneider
Design - Chris Deutsch