2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

cai on turbo

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Old May 23, 2007 | 10:43 AM
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cai on turbo

is it safe...? seems like all I ever see is a cold air box never a cai on a turbo?
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Old May 23, 2007 | 12:49 PM
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Originally Posted by speed_monkey
Why would it be worthless? I dont see how cooler air isnt good.
i think he means putting the filter directly on the turbo.

i see a lot of people do it but if you can put a pipe between that would probably be better.
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Old May 23, 2007 | 12:55 PM
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Originally Posted by cls6888
is it safe...? seems like all I ever see is a cold air box never a cai on a turbo?
It's fine, denser air is always better.
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Old May 24, 2007 | 02:34 AM
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Originally Posted by cls6888
is it safe...?
Why wouldn't it be? The car came with one stock.

seems like all I ever see is a cold air box never a cai on a turbo?
There seems be be mass ignorance about this topic. A "cold air box" and a "cold air intake" are the same thing. It's not one part, like a pipe or a heat shield; it's a complete system that ensures only outside air enters the intake and not engine bay air.

Plenty of Turbo owners have a CAI of some kind. Maybe you just haven't seen many Turbos.

Originally Posted by turbo10th
It would be worthless as for the cold air part because the turbo will heat it up but it should help flow a little better but it would be just a 45 degree bend piece of pipe.
This whole statement could not be more wrong. If the air's colder when it enters the intake, it'll be colder when it gets to the engine. This is just common sense.

What i meant was that it is not really going to be a cold air intake because it would be a short pipe and would just get heak soaked in a matter of minutes because of the turbo.
A short peice of pipe is not a CAI! You're talking about the TID, which is a completely different topic.
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Old May 24, 2007 | 09:02 AM
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Originally Posted by NZConvertible

This whole statement could not be more wrong. If the air's colder when it enters the intake, it'll be colder when it gets to the engine. This is just common sense.
Well yeah but engine bay temp. will have some effect on IAT. If the ECT is 212 degrees and the intake is 60 obviously the heat will transfer into the intake ducting and raise the IAT. So saying that the previous statement is completely and utterly false is not completely true either. However it would be cooler (like you said) than with a stock airbox...
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Old May 24, 2007 | 09:15 AM
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Originally Posted by fcunderwater
Well yeah but engine bay temp. will have some effect on IAT. If the ECT is 212 degrees and the intake is 60 obviously the heat will transfer into the intake ducting and raise the IAT. So saying that the previous statement is completely and utterly false is not completely true either. However it would be cooler (like you said) than with a stock airbox...
The previous statement is utterly false. You are going to get heat transfer into the intake air no matter what temperature it is when it enters the intake tract, but if you start with colder air, you will a colder charge throughout the system.
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Old May 24, 2007 | 10:29 AM
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Originally Posted by Aaron Cake
The previous statement is utterly false. You are going to get heat transfer into the intake air no matter what temperature it is when it enters the intake tract, but if you start with colder air, you will a colder charge throughout the system.
yeah exactly what I said but just a little bit more abrasive....
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Old May 25, 2007 | 06:22 AM
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Originally Posted by fcunderwater
Well yeah but engine bay temp. will have some effect on IAT.
Nobody ever said it wouldn't, but that doesn't change the simple fact that if the air's colder when it enters the intake, it'll be colder when it gets to the engine, no matter what happens to it along the way.

So saying that the previous statement is completely and utterly false is not completely true either.
Let me make it clearer. He said "It would be worthless as for the cold air part because the turbo will heat it up but it should help flow a little better but it would be just a 45 degree bend piece of pipe.", which is referring to the TID, which has nothing to do with a CAI.

However it would be cooler (like you said) than with a stock airbox...
I never said that...
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