Porsche 993 Carrera turbo system upgrade spreadsheet (1994-1998)

1994 – On 911 Carrera 3.6L 993

Description	Stage 1 OBD-II	Stage 1	Stage 2	Stage 2 OBD-II	Stage 3
Protomotive Intercooler	Included	Optional	Included	Included	Included
Protomotive SS Headers	Optional	Included	Included	Optional	Included
Protomotive SS Muffler	Optional	Included	Included	Optional	Included
Protomotive SS Heater System	Optional	Included	Included	Optional	Included
Protomotive fuel Pressure Reg.	Included	Included	Included	Included	Included
Protomotive Software	Included	Included	Included	Included	Included
Protomotive Manifold Straps	Optional	Included	Included	Included	Included
Turbocharger	Twin	Twin	Twin	Twin	Twin
Boost Control	Mechanical	Mechanical	Electronic	Electronic	Electronic
Boost Gauge	Optional	Optional	In EVC	In EVC	In EVC
Clutch Upgrade	Optional	Optional	Disk Only	Included	Disk / Pressure Plate
High Flow Fuel Injectors	Optional	Included	Included	Included	Included
Fuel Pump	Standard	Standard	High – Flow	High – Flow	Twin – Pumps
Cylinder Head Seal	Standard	Standard	Flame Ringed	Optional	Flame Ringed
Mass Flow Sensor	Standard	Standard	Standard	Standard	High – Flow
Horsepower Capability	410hp (96-98) 395hp (94-95)	400 hp	600 hp	530hp	750 hp
Max Boost Pressure	.45 bar	.5 bar	1.0 bar	.9 bar	1.25 bar
Engine Displacement (cc)	3600	3600	3600	3600	3745
Compression Ratio	Standard 11.3 / 1	9.00 / 1	8.00 / 1	8.00 / 1	8.50 / 1
Spark Plugs	Two per Cylinder	Two per Cylinder	Two per Cylinder	Two per Cylinder	Two per Cylinder
Ignition System	Inductive	Inductive	Inductive	Inductive	Inductive
Connecting Rods	Standard	Included	Included	Included	Included
Engine Rebuild	Optional	Top – End	Top – End	Included	Top – End
Alternative Camshaft Profiles	Optional	Optional	Optional	Optional	Optional
High-Rate Valve Springs	Optional	Optional	Optional	Optional	Optional
Lightweight Clutch Package	Optional	Optional	Optional	Optional	Optional
Pressure Sensing	Optional	Optional	Optional	Optional	Optional
Approximate Installation Time	3-4 Weeks	4 – 6 Weeks	8 – 10 Weeks	8-12 Weeks	12 – 16 Weeks
Kit Available	Yes (recommended for Dist Only)	To Distributors Only	To Distributors Only	To Distributors Only	To Distributors Only

Note: Kit items are recommendations only and may change as further
development has been completed.

Porsche 993 Carrera turbo system upgrade