Turbine casting erosion
#1
Turbine casting erosion
What would cause this?
The mods to the engine are M2 Stage III, Down Pipe and Racing Beat exhaust. All else is factory stock. The exhaust manifold is undamaged.
I have another set to turbos but don't want the same thing to happen....
The mods to the engine are M2 Stage III, Down Pipe and Racing Beat exhaust. All else is factory stock. The exhaust manifold is undamaged.
I have another set to turbos but don't want the same thing to happen....
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#8
Form follows function
iTrader: (8)
This is the result of thermal cycling and the complex nature of the casting. Unequal rates of expansion/contraction throughout the casting result in small cracks which erode over time due to the concentration of heat at the edges [of the cracks].
The Turbo Control Valve flapper can no longer seal effectively, hence your loss of low end performance as some of the exhaust flow is bypassing the primary turbine.
The Turbo Control Valve flapper can no longer seal effectively, hence your loss of low end performance as some of the exhaust flow is bypassing the primary turbine.
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10-17-20 03:25 PM