EVOMS EVT790/850R Porsche 997 Turbo/GT2

Производитель: Evolution MotorSports

After nearly 18 months of development, testing and tuning, we have completed the latest generation of our 997 turbo EVT Performance Systems, the EVT850. The EVT850 process began with a complete engine development approach which addresses all aspects of the 997TT engine including internal strengthening. Our complete approach to developing this level of performance comes from our vast knowledge, technical experience and absolute comprehension of the 997 turbo power plant and vehicle as a whole. Our years of accumulated knowledge are the backbone of our engine development program which has been perfected with extensive engineering and hundreds of engine builds. Our methods behind creating the ultimate Performance Systems include a systematic approach which maximizes strength, reliability and optimized performance for today, tomorrow and for years to come.






An EVOMS Performance System is meticulously engineered from preliminary ideas where the EVOMS design team analyzes specific performance criteria. ECU programming and components are researched, CAD designed, 3D modelled, prototyped and manufactured to meet those strategic goals. On rare occasions we choose a sourced component and is integrated into our development process based on stringent testing on the Dyno, street, and track. Next, systematic analysis is conducted where reengineering, further testing and tuning is performed and refinements are made, sculpting the final system.

EVOMS 997TT EVT850 Performance Components:
EVOMS GT30R Turbochargers w/ CNC Machined 76mm Billet Compressor Wheels
EVOMS CAD engineered - 321 Stainless Steel GTR Stepped Headers
EVOMS CNC Machined Stainless Steel Metric Oil Feed Line Adapters
EVOMS Turbocharger Water Cooling Kit. Adapts to OEM Water System – No Modifications
EVOMS Engineered and Fabricated Lightweight 70 mm Exhaust System w/ HJS Catalysts
EVOMS High Flow Turbocharger Air Feed Ducts w/ Boost Recirculation Ports
EVOMS 70 mm High Flow Aluminum Y-Pipe w/ Boost Recirculation Ports
EVOMS EBDV-90 Billet Aluminum Boost Recirculation Valves
EVOMS High Efficiency ClubSport Intercooler Upgrade
EVOMS Silicone Boost Hoses w/ High Torque Stainless Steel Clamps
EVOMS Carbon Fiber V-Flow Air Induction System w/ Twin 127 mm Venturi’s
EVOMS / IPD Intake Plenum W/ Larger Bosch 83mm Throttle Valve
EVOMS / SRE Street Clutch System w/ #3850 Clamp Force Pressure Plate
EVOMS GT2 Clutch Master/Slave Conversion system
EVOMSit EVT850 ECU Upgrade w/ SP and IST - Removed VTG Functions
Electronic Boost Controller
EVOMS VTG Signal Converters
Electronic Boost Gauge – Replaces OEM Sport Chrono (Optional)
EVT Stage 1 Bottom End Strengthening Components:

EVOMS Machined and Balanced Carrillo Connecting Rods
EVOMS H-11 Tool Steel 230KSI Tensile Strength – 10mm Head Studs
EVOMS “Hell-Fire” Viton Coated Stainless Steel High Pressure Head Gaskets
EVT Stage 1 Bottom End Assembly Procedures:

Complete disassembly of engine down to the crank
Inspect, size, spec out all parts including: crankshaft, pistons, valves, guides, cams, springs,
Inspect for unusual wear, measure all wear components to determine if they are within specifications and address any problems
Sonic clean components and prep for reinstallation
Inspect valve train and reseat valves with hand lapping method
Install OEM crankshaft, intermediate, rod and main bearings
Install OEM rear main and front crankshaft seals
Install EVOMS machined and balanced Carrillo Connecting Rods
Install EVOMS H-11 tool steal head studs / hardware & torque to EVOMS specifications
Install EVOMS “Hell-Fire” viton coated stainless steel head gaskets
Install new OEM o-rings, seals and associated gaskets
Build bottom utilizing OEM & EVOMS developed high power building procedures
Time camshafts utilizing OEM timing tools
Install all associated induction / top end components with new gaskets / seals
Secure all vacuum / pressure lines as required for high power applications
Reinstall engine. Fill fluids, torque hardware to OEM specs. Mark all torqued hardware
Dyno test and tune. Monitor / data log over 50 engine functions during the tuning process
Test drive vehicle to ensure perfect drivability. Make any necessary adjustments


There are many companies that don’t believe in OUR method of reliable engine development. Installing bolt on components that are haphazardly constructed and are not well developed or tested is the type of shortcuts many so called “tuners” take. This inexperienced approach is what causes very costly catastrophic engine failures. When one of these engines lets go, the damage created is far more expensive than the cost to build it properly from the beginning. If someone is looking for a “HP number” and doesn’t care about how long the engine will last, then we are not the right company to build their Porsche. If someone is looking for a Performance System that has been meticulously engineered, has had systematic analysis conducted, engineering, extensive testing / tuning where all aspects have been developed in house from start to finish, EVOMS is the only choice.

Цена: 57750.00$

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