swanny
Senior Member
http://www.honeywell.com/sites/portal?smap...st&theme=P1&c=n
I started the test and then realized I know nothing about the subject.
I started the test and then realized I know nothing about the subject.
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I think this test sucks. Question 2. Anyone care to clarify how the temperature of the exhaust gas plays any roll in the turbos engery source?
Question 9. how does a waste gate allows a smaller sized turbine to be used for improved low speed engine performance?
Just 2 questions I thought are retarded
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I think this test sucks. Question 2. Anyone care to clarify how the temperature of the exhaust gas plays any roll in the turbos engery source?
Question 9. how does a waste gate allows a smaller sized turbine to be used for improved low speed engine performance?
Just 2 questions I thought are retarded
the hotter the exhaust gases, the more volume. therefore, the more force they push through the turbine.
with the wastegate, you get less lag. less lag=improved low speed engine performance.
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I don't agree with the wastegate question either. The purpose of the wastegate is to control boost by routing exhaust gases around the turbo so that you wont overboost. And how does a wastegate control lag? the wastegate doesn't allow you to use a smaller turbine unless it is talking about using a non-gated huge turbo that spools so slow that it reaches full boost right at redline. you can use whatever size you want.
Also, how does the actual temperature make the turbo spin faster. I agree that the heat makes more volume but wouldnt that count as the force on the vanes and not the temperature itself? I dont see how heat would make it spin faster.
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heat doesn't effect volume so much as it does density with the air...
hotter air moves faster that coller air, thus makeing boost faster.
waste gate doesn't control lag. it controls over-boosting.
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hot air = higher internal energy
higher internal energy means a given amount of exhaust gas can do more work on the turbine wheel, thus creating more power