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Banks Turbo and Stock Exhaust

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Old 10-03-2010, 08:20 PM
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Default Banks Turbo and Stock Exhaust

Hi, I purchased a used banks turbo kit for my 87 Chevy Blazer with a 6.2L Diesel

It's old and rusted but it still in good shape. I have to change the gasket between the two half's of the turbo and some rust removal.

But my main concern is that the banks kit came with a 3 inch exhaust and their muffler.

This however was not included in my purchase.

Now I am wondering if it would be ok to connect the 2 inch stock exhaust into the turbo?

If not was is my cheapest alternative.
 
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Old 10-03-2010, 08:37 PM
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I am not necessarily the best source, but being that you are using air from a 2inch exhaust to run the turbo shouldnt make too much of a difference, because it is exhaust driven.... But I could be completely missing the idea..... I know that a smaller pipe will cause more friction/size than a larger one.......
 
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Old 10-03-2010, 08:39 PM
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My only concern is that it would cause a lot of back pressure as its not as easy flowing as the original banks exhaust is.

I just don't want to damage the turbo with all the back pressure.
 
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Old 10-03-2010, 08:44 PM
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Originally Posted by mafiaboy01 View Post
My only concern is that it would cause a lot of back pressure as its not as easy flowing as the original banks exhaust is.

I just don't want to damage the turbo with all the back pressure.
Don't Quote me, but the backpressure drives the turbo, and you put a blow off valve on the other side because the pressure on the air intake side can damage the engine.... Turbos are made to be thrown pressure at ... I believe...
 
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Old 10-04-2010, 06:45 AM
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I wouldn't run a 2" pipe where the original was 3". You want to keep restriction before the turbo to a minimum. I would recommend you have a 3" pipe made up to run to the turbo.
 
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Old 10-04-2010, 07:20 AM
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You can run the stock exhaust with the kit, however you won't realize it's full potential until you upgrade the exhaust. And you dont need a blow off valve because diesels do not have a throttle plate. Blow off valves are used on gasoline engines where you want to keep the turbo rpm's up. I had one on my Conquest which had a turbo on it.
 
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Old 10-04-2010, 10:52 AM
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Probably just gonna hook it up like this for now then switch it when i hey some more money. I was also thinking of taking out the muffler and that should give enough flow.
 
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