Isn't clear if the car is for sale, or it was just built as an advertising / marketing tool. Note the adjustable front camber plates, and plastic distributor covers (119.97x items) which did not come on the 119.98x (1996-99) models. Based on the mild power output, I'm guessing it's ~10:1 compression with low boost. Shoot, they were claiming ~440hp at the crank from a naturally-aspirated 6.0L... 510-525hp (article shows 2 conflictig numbers) with twin turbos seems like a lot was left on the table for all the custom work done. Neat car though.
RENNtech’s Resto-Mod 1998 Mercedes-Benz SL500
A “Resto-Mod” is a blend of old and new technology. This 1998 Mercedes-Benz SL500 RENNtech has been fully restored, maintaining the original classic styling while adding the latest technological advances in performance and comfort. On the outside, this classic roadster received new custom metallic dark grey paint, an AMG aero package straight from the factory, and custom RENNtech wheels.
On the inside is where the real fun begins! The ’98 SL500 motor has been bored out 4 mm to 100 mm and stroked to 94.8mm transforming the old 5.0L powerhouse into 6.0 liters. For optimum results, a Bosch Engine Management System was installed together with a handmade wire harness for the engine. Software application and programming of the ignition and fuel required the tedious, time-consuming process of working from the ground up.
RENNtech engineered a custom intake manifold which was handmade by its highly talented fabricators, as well as all the necessary pipes and hoses, for the installation of 2 twin Borg Warner turbos. 400 plus fabrication hours later the custom exhaust and intake along with a water to air intercooling system complete with a heat exchanger lowered in the middle of the V fit perfectly.
To support the extreme power increase, both the chassis and driveline had to be reinforced. The convertible’s inherently soft chassis was upgraded to be stiffer for better handling, on a par with today’s’ convertible. A limited slip differential was added to improve handling and traction, the transmission was reinforced to handle the additional power. This SL500 is equipped with a fully adjustable sport suspension package allowing for the perfect ride height and damper settings in any environment. Finally, the unique custom ceramic brake package was designed, engineered and tested to work with the proper balance of the vehicle, to manage the increase in speed and performance.
At 525 HP / 510 LB-FT TQ at the crank, this resto-mod is certainly measuring up to today’s modern roadster.
Classic Mercedes with modern supercar performance and handling. Contact RENNtech today and breathe some new life back into your Mercedes.
RENNtech’s 1998 Mercedes-Benz SL500 Specifications
- Fully Restored
- Custom Metallic Grey Paint
- AMG Aero Package
- Custom RENNtech Wheels
- Converted from 5.0L to 6.0L
- Bosch Engine Management System
- 2 Twin Borg Warner Turbos
- Custom RENNtech Exhaust and Intake
- Intercooler Upgrade
- Carbon Ceramic Brakes
- Fully Adjustable Custom Sport Suspension Package
- Chassis Reinforcements
- Reinforced Driveline
- Limited Slip Differential
- 415 HP / 400 TQ at Wheel
- 501 HP / 482 TQ at Crank