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- Jan 20, 2013
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Maxi stated that technology had moved on so didn't see that S/S was going to be much of an issue to a modern turbo.
You stated that technology hadn't changed since the 80s....
The example given were of how technology had moved on since the 80s including VGTs but also materials, design, tolerances and electronic control.
Look see!
View attachment 147376
The improvements in materials, tolerances and design means that bearings are far less likely to fail on a modern turbo, than they are on a unit from the 80s, this is the sort of thing I suspect Maxi was getting at, VGTs was just an example of how turbo technology had moved on, where you were claiming it hadn't.
In the 80s turbos were fitted to only special cars where as now with the huge growth in demand for turbo diesel cars and manufacturers pushing down the co2 outputs of all models, virtually all cars on the forecourts today come with at least one turbo engined option. As a result of course you will see higher numbers of turbos failing, from all manufactures
Someone's feeling pedantic. Perhaps your definition of the word 'much' is different to mine. My dad would have argued that cars haven't changed 'much' in the last 100 years.
Switching off a hot turbo still kills it, so the advances are still irrelevant to the discussion. Turbos were never intended to race from one light do the next with the engine switching off in between, we simply don't know what happens when they are asked to do so. Of course turbo failures are more common as more turbos are fitted, but the point if they're STILL failing without stop/start. What happens when you add S/S stresses to the mix?