TurboMaster Wastegate Control for your Power Stroke! This unit fits Early 1999 7.3L PSDs with factory turbo.
Special Tip: If you are installing the TurboMaster with the turbo in the truck, tie a piece of dental floss on the clip so you can use needle nose pliers and not run the risk of loosing the clips.
A few words from the designer/ Patent holder:
The boost pressure controller used in many applications of Ford and Dodge, use a canister, which features a spring that applies a closing force on the turbocharger waste gate valve.
Included in the canister is a boost pressure-sensing diaphragm that applies a force, which counters that of the spring.
As boost pressure rises, an ever-increasing counter-force is affected against the spring, lessening the force applied to the waste gate valve, causing it to allow bypassing of turbine inlet pressure (drive pressure) to limit shaft speed and consequent boost pressure output.
The major drawback with this type control is that it begins to bleed-off turbine inlet pressure well in advance of the desired, boost pressure limit. In the typical application, the closing force on the waste gate is relaxed sufficiently to allow this bypassing at boost pressure outputs, which are approximately 1/2 of the target. In other words, set to 20 this starts to open at 10.
This 'wasting' of turbine inlet pressure, which occurs in the upper half of the boost pressure output curve, results in a relatively lazy turbocharger performance that affects the mid to upper range engine performance.
The Turbo-Master mechanical waste gate controller is designed to function as a 'turbine-inlet pressure' relief-valve mechanism. It will keep the waste gate valve closed, retaining turbine inlet pressure up to the predetermined, pressure bypass point. When turbine inlet pressure reaches that preset point, the waste gate valve is forced off its seat to allow bypassing of any excess turbine inlet pressure, thereby controlling shaft speed and boost output pressure.
The reason for the longer lever? The Turbo-Master design features a waste gate lever that is longer than the stock unit. This helps to overcome the friction inherent to the waste gate shaft / bushing, resulting in a smooth, predictable waste gate function.
The advantage of retaining all turbine inlet pressure up to the point of bypass is a full utilization of all available turbine inlet pressure. The turbocharger will provide a more efficient boost pressure output curve, with better engine performance in the upper half of that curve.
