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Well now Im all confused about turbos, cuz I thought it was all about the air flow thru them to get them spinning and the use of an IC was

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Old 12-08-2009, 07:19 AM   #1 (permalink)
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Well now Im all confused about turbos, cuz I thought it was all about the air flow thru them to get them spinning and the use of an IC was to cool the air going in the intake to get more dense air to allow more fuel which then gets ignited to make the power. Heat was just a by product of the spinning blades and caused heat soak which takes away power. So you are saying that hotter air makes the blades spin faster than colder air? If so I can see your point on the heat thing, then you just need to cool it down before it hits the engine.

Now as far as lag goes, doesnt the size of the turbo determine that? My turbos were small and boost came on around 2500 rpms with no lag. Also they used diverter valves to dump unused air back into the intake to help stop lag and maintain boost. So once the long piping is filled with air in the STS and if they used a DV would there still be alot of lag? I really think the GV in my 2 cars helped keep boost up.
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Old 12-08-2009, 12:23 PM   #2 (permalink)
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Quote:
Originally Posted by Zsteve View Post
Well now Im all confused about turbos, cuz I thought it was all about the air flow thru them to get them spinning and the use of an IC was to cool the air going in the intake to get more dense air to allow more fuel which then gets ignited to make the power. Heat was just a by product of the spinning blades and caused heat soak which takes away power. So you are saying that hotter air makes the blades spin faster than colder air? If so I can see your point on the heat thing, then you just need to cool it down before it hits the engine.
Meh...A little confusing...

Quote:
Now as far as lag goes, doesnt the size of the turbo determine that? My turbos were small and boost came on around 2500 rpms with no lag. Also they used diverter valves to dump unused air back into the intake to help stop lag and maintain boost. So once the long piping is filled with air in the STS and if they used a DV would there still be alot of lag? I really think the GV in my 2 cars helped keep boost up.
Well yes.. Turbo lag has a loooot of reasons for happening though. But your idea of how a remote mount kit works is a little off. Turbo kits in general push a LOT of air to the point that they need wastegates because of the amount of air. So, think more of a high velocity pump pushing air through a small diameter tube. Even simpler, imagine yourself blowing bubbles in a cup of water with an average sized straw. Quick. Do it with a longer straw and there's hardly any difference. Do it with a wider diameter straw and you'll experience some lag. Make it even wider and you'll have problems. Now when it's wide and short, the lag is tolerable (front mount kit). But when the straw is wide and long? Oh boy.

Anyway, it takes .05 seconds for the air from the turbo to reach the intake manifold on their kits. But you have to use the correct mapped turbos that they make or get one custom made just like theirs. And use the suggested charge pipng diameters.

There is my retarded explanation.
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