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Mopar knows that more is better, and the Turbo Upgrade Kits from Mopar Performance are just the thing to power the 2.4L Turbo to new heights. These kits kick it up with lots more than just tweaks to the turbocharger.
For maximum power and torque, the Stage 3 Turbo Kit will be the ultimate upgrade for your SRT-4. The Stage 3 Turbo Upgrade Kit (with and without Turbo Toys) boosts power to an awesome 310 hp at 5600 rpm and 325 ft.-lbs. of torque at 3200–4800 rpm. The Stage 3 Kit with Turbo Toys in high-octane mode increases power to an amazing 355 hp at 5200 rpm and 365 ft.-lbs. of torque at 3200–4800 rpm! The Mopar Performance Cat-Back Exhaust System (P4510461) is required to obtain these power figures.
- Increased WOT and part throttle boost
- Boost hold feature during WOT shifts
- More aggressive exhaust note during deceleration
- Optimized calibration for the Mopar Performance
Blow-Off Valve Conversion Kit (P4510548—sold separately)
- Increased rev. limit from 6240 RPM to 6500 RPM
- Stage 3 PCM with Block-Off Connector
- TD05HR-15GK2-10cm2 Turbo Unit and Manifold: 16% larger compressor wheel diameter to flow and compress more intake air, 19% larger turbine wheel diameter to flow more exhaust gas and reduce back pressure, 67% more turbine scroll area for reduced back pressure
- TiAl (Titanium Aluminide) Turbine Wheel with significantly less rotational inertia than the standard Inconel steel; less inertia results in reduced turbo lag and better turbo response.
- High-Flow (180 lph 75 psi) Fuel Pump Module
- Pressure Regulated Fuel Rail Assembly with 4.0 Bar Returnless Regulator and Hose Kit
- (4) 682 cc/min Fuel Injectors†
- 3.0 bar MAP Sensor†
- 3.0 bar TIP Sensor†
- Turbo Toys Hardware and Components†
| Part Number |
Description |
Applications |
| *P5007864 |
Stage 3 Turbo Upgrade Kit — with Turbo Toys |
SRT-4 (2003–04) |
| *P4510338 |
Stage 3 Turbo Upgrade Kit — without Turbo Toys |
SRT-4 (2003–04) |
| *P4510339 |
Stage 3 Turbo Upgrade Add-On Kit—for vehicles with Stage 2 Turbo Upgrade Kit |
SRT-4 (2003–04) |
Part numbers and pricing for 2005 model-year vehicles will be announced soon.
*Not legal for sale on pollution-controlled vehicles or vehicles registered for highway use.
† Not included in the Stage 3 Add-On Kit.
Intercooler Sprayer
The 4 fine-mist water spray nozzles attached to the front mounted intercooler are activated by the 3-position blue rocker switch located on the Turbo Toys bezel. The three intercooler spray system modes are defined as follows:
Off – No spraying will occur in the off position.
Auto – This mode uses an algorithm in the PCM to optimize charge air cooling with minimum use of fluid. The PCM monitors vehicle speed, ambient air temperature, charge air temperature, and throttle position to determine when to spray the intercooler.
Manual – This mode is activated when the switch is fully pressed down. The result is a constant spray of water upon demand. The sprayers will stay on continuously while the switch is held down and will remain on for a short time after the switch is released.
The intercooler sprayers increase the efficiency of the intercooler and reduce charge air temperature, resulting in increased engine performance. The blue indicator lamp will illuminate whenever the system is spraying.
Dial-A-Boost Switch
Manage boost on demand by adjusting the 4-position thumb wheel located on the Turbo Toys bezel. Through boost torque management, engine output can be optimized for the best launch and drivability in conditions varying from the sticky launch pad at the drag strip to snow covered pavement.
The thumb wheel can be set to the following four positions:
Position 3 – This position provides the highest boost level with torque management optimized for traction limit with high grip tires.
Position 2 – This position provides the highest boost level with torque management optimized for traction limit with OEM tires.
Position 1 – This position provides mid-level boost.
Position 0 – This position provides minimum boost.
High-Octane Fuel Switch
Fill the tank with 100 (R+M)/2 octane unleaded fuel, press the red switch located on the Turbo Toys bezel, and discover instant torque and power gains. The PCM will increase spark advance and adjust fueling to take full advantage of the 100 octane unleaded fuel. The red indicator lamp will illuminate when High Octane Mode is active.
During High Octane Mode operation, the PCM prevents damaging detonation via the OEM knock detection system. High Octane Mode will be bypassed if damaging knock is detected. The red indicator lamp will blink when High Octane Mode is bypassed. Spark advance and fueling are returned to standard levels in bypass mode. The blinking indicator light can be turned off by pressing the red High-Octane Mode switch. Entering bypass mode is an indication that higher-octane fuel is required.
NOTE: It is recommended that the level of premium fuel be as low as possible when adding high-octane fuel. The tank level should be reduced until the low fuel indicator is blinking and filled completely with 100 (R+M)/2 octane unleaded fuel before the High Octane Mode is engaged. The use of leaded fuels will cause damage to the vehicle’s catalytic converter and oxygen sensors.
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