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Old 02-25-2005, 09:15 PM
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Is this normal for a turbo?

Is this normal for a turbo to be so hot that it glows?
Just wondering..








*Edit*
can any mod move this to the engine forum?

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Last edited by TNTster; 02-26-2005 at 12:27 AM.
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Old 02-25-2005, 09:56 PM
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They can get red hot like that. Looks as though it is on a dyno breaking in and it is probably bumped up quite a bit. It should not get like that under normal driving conditions.
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Old 02-26-2005, 01:18 AM
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3 rivers.. hmm, about a 20 minute drive from me. Sure is pretty by Kaweah lake. Glad to see a local on here
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Old 02-26-2005, 03:10 AM
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I don't think it's unusual for an engine on a long hard pull. I've seen it a lot on roundy round cars but you only notice it at night.
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Old 02-26-2005, 08:56 AM
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You'll even see just headers get hot on an engine if you keep it working hard on a stand. You gotta remember, there is no air flow to cool them off.

Also, stupidest thing to do is run a turbo open like it is in pic 1. Imagine a pebble (or a finger!) finding it's way in there. A spooled up turbo spins at 80,000+ RPM.
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Old 02-26-2005, 04:33 PM
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Quote:
Originally Posted by 78novaman
You'll even see just headers get hot on an engine if you keep it working hard on a stand. You gotta remember, there is no air flow to cool them off.

Also, stupidest thing to do is run a turbo open like it is in pic 1. Imagine a pebble (or a finger!) finding it's way in there. A spooled up turbo spins at 80,000+ RPM.
"hey mr. terrorist scum insurgent guy, stick your "parts" in there."
ooh, that would probably get 'em speaking...

but seriously, wouldn't dirt get into the engine, and the turbo and kill it's lifespan by a long time? Perhaps OSHA has something on the subject regarding dyno operators.
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Old 02-26-2005, 08:22 PM
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This happens when an incorrectly sized turbocharger is used, the mixture is too lean or the timing is retared. No matter what the reason is, it's not very efficient and needs some work.

Larry
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Old 02-26-2005, 10:11 PM
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Some high end turbo engines create alot of heat on the exhaust side. I have to think that this is due to the fact that most turbos are sized too small due to the fear of lag. If a larger turbo was used, it would be easier on everything and make more power. With the larger turbo it does not take as much heat and pressure to generate the needed turbine energy to drive the compressor....so it would not get so hot.

Chris
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