waste-gate
wastegate

Mazda RX7, 13B Twin to Single Conversion (with external waste-gate)

The return spring on the turbo waste-gate was not originally lubricated nor covered, this resulted in early failure causing the waste-gate to remain partially or fully open.

At the HC Esprit stage, we had introduced the integral waste-gate as part of a new Garrett AiResearch TB03 fitment, which also allowed us the use of water-cooling in the central casing.

Equipped with a number of new features (cylinder heads, cylinder block, waste-gate, mapping, etc.) and developing more than 1200 hp at 12,500 rpm in qualifying, this engine enabled Ayrton Senna Lotus 98T to notch up four pole positions and three podium finishes to close the V6 turbo era in style.

This configuration has no wastegate and can't control its own boost levels.

The external wastegate may be part of the exhaust housing itself.

This diverts air from the wastegate making it open at a higher pressure.

This was mostly due to a redesign of the wastegate.

Either can achieve the goal of reducing pressure pushing against the wastegate.

The speed of the turbocharger is controlled by a wastegate.

The ability to help the wastegate remain closed as boost pressure builds can be increased.

If not for the wastegate, the boost pressure would continue to rapidly rise to disastrous levels.

Key design features to a superior wastegate are temperature and flow capability.

However, a third pipe was situated off-center for use with a wastegate.

With a sufficiently large turbine, no wastegate is necessary.

In fact we guarantee to beat the performance of any other wastegate of an equivalent size!

Check the wastegate for free movement and damage.

Important - the method of installation is different for vehicles equipped with an external wastegate.

He opened the wastegate to balance the flow.

This effectively changes the air pressure as seen by the wastegate actuator diaphragm.

We returned to our works and adjusted the wastegate rod to reduce peak boost to 15psi.

Exhaust gas backpressure is still pushing against the wastegate valve itself.

Grinding his teeth in apprehension, he jammed the wastegate all the way shut.

Recent advances in internal wastegate actuators bring dual port control.

Part of the suit called for all 33 qualified cars to be summoned to court to have their wastegate pipes measured.

His race lasted until lap 30, when a broken turbo wastegate forced him into retirement.

Also to be noted is the way in which boost control is achieved, depending on the type of wastegate used.

It has a 17 mm diameter wastegate opening to bypass excess exhaust gas.

To the left of this can be seen the inlet turbine housing with the wastegate actuator.