News to me...

[CMNS PWR]

Not sure how correct the hilighted statement is, but take a look. I have been around diesels and soaking up knowledge about them for a few years now, but have never heard this. This is from a PSD vendor. I call BS.



Boost Gauge

The boost gauge will indicate how much pressure the turbocharger is generating. Monitoring the boost pressure will allow you to catch a failing turbo before it fails and causes a chain reaction of other problems. If the waste gate sticks closed, over boost will occur. You will se this on the gauge and be able to fix the waste gate before a hose bursts or lower end damage occurs like a crank or connecting rod. Low boost reading could indicate a failed turbo that still spins, or a manifold/intercooler leak. Most turbo failures occur when the exhaust gas temperature exceeds 1300 degrees. The turbine blades will flatten out and lose their twist. The truck will still start and run, but little to no boost is developed. Having a gauge installed will take the guesswork out of it. Boost is measured at the manifold side of the turbocharger. An easy way to connect is to tee in with the waste gate. Instructions are included with each gauge.



http://www.portadiesel.com/products/descriptions/boost.html

 

[snowracer69]

Don't know why I still make 35+ PSI after putting my turbine through multiple runs of +1500*F then. And I know some of those sled-pullers and drag-racers push 1700* on a regular basis. I'd say BS on that statement, but that's IMHO.



Josh

 

[jrollins]

it probably has some merit, DC and Cummins don't recommend exceeding 1300 deg for any amount of time.

 

[Gary - K7GLD]

In the earlier days of turbos, it was a factor - I've seen pictures of turbo impellers "wilted" by excessive heat - but don't remember exactly what temperatures were involved. I've no doubt there ARE many harmful effects of excessive EGT, and not all limited to engine internals...