1982 Turbocharged Ferrari 308GTBi
This page was thrown together pretty quickly. My intention is to get professional photos and some videos. If there is anything you want more information about please email me at aaron@atsracing.net
I have owned for a little over a year, the previous owner was an enthusiast and FerrariChat member, he purchased the car in the early 2000's!
Recent service by ATS - all done in 2024
Timing belts and tensioner bearings
Sanden AC compressor upgrade
Wiring modification to fuse box to force both fans on when AC requests it. Factory is just one, this helps AC performance at low speed
Wiring modification to fuse box to increase voltage
Wiring modification to AC blower motor for better fan speed, MUCH butter
Power Window boosters
Valve cover gaskets
replaced all intake gaskets
ATS EFI conversion using Link G4X Atom2 ecu
50lb injectors, stainless body and E85 compatible, fuel lines changed to E85 compatible
36-1 crank trigger for igntion control (no digiplex boxes)
Daytona V12 clutch upgrade
ATS Turbocharger upgrade with On3 ball bearing, oilless turbocharger, Tial external wastegate, custom exhaust, air to air intercooler with fan
stainless brake lines
G-Loc brake pads
Custom coilovers using QA1 components
Poly bushings on control arms all around
The complete interor was removed and disassembled to re-dye the interior to the correct original shade.
We have before and after dyno's of this car. It has 105,000 miles on it and even before any modifications it was one of the best running 2 valve 308 motors I have personally encountered. Of course turbocharging only made it better. The car currently makes 400-500 horsepower depending on your fuel choice. Dyno graph is at the very bottom of this page.
The electronic controls are what make this level of horsepower reliable. The ECU controls fuel, timing, and boost based on multiple factors including: ethanol content of the fuel, water temp, air temp, atmospheric pressure, etc. It's set up with multiple failsafes such as a 3D maximum boost table, reducing igntion timing based on intake air temperature, or coolant temperature, etc. This is our sixth turbocharged 308/Mondial.






















The above dyno numbers are at the wheels. Ferrari (and all manufacturers) rate their cars at the fhywheel. So these numbers include approxiamtely 19% drivetrain loss.
Blue - stock 308GTBi with mechanical injection, Digiplex igntion and stock exhaust. 205 flywheel horsepower
Red - turbocharged, EFI, on 93 octane pump gas. 403 flywheel horsepower
Green - same as red, but using E85 fuel. 510 flywheel horsepower