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Crusty
GenIII
4/12/2002
01:14:41
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 Subject: How turbo works...
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Message:
So someone please let me know if my summary is correct.
So the new exhaust manifold lets the spent gas spin the turbine...the turbine spins and compresses air pulled in from air filter...then the throttle plate it opened and you have power...when the turbo is spooled, between shifts...the blowoff valve keeps the pressure even so the ceramic blades of the turbo dont break...or this pressure build-up can be re-routed...the intercooler cools the air intake charge to create more power...where does the intercooler play into the story above?
Thanks for helping me aling here guys, I am really interested in figuring out the physics etc. of sizing a turbo and making power efficiently.
Sorry for the winded post, hehe
2002 4x4
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kota on 20s
GenIII
4/12/2002
02:39:49
| RE: How turbo works...
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the intercooler goes between the turbo and the throttle body.
Eric, 98 5.2 5speed, K&N gen II, 50mm TB, 2bbl M-1, 1.7RR's, JBA ciramic headers, carsound cat, dumped gibson, and a lot more
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Halo3
GenIII
4/12/2002
08:05:34
|  RE: How turbo works...
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Message:
The intercooler's main function is to cool the air before it gets fed into the engine.
Based on physics, we know that cooler air is more dense than hot air. Hence, cooler air will contain more oxygen per cubic . So, in cooling off the air before feeding it into the engine, we can get more oxygen into the engine in the same amount of time. And the availibility of more oxygen means that you can feed the engine more gas....and more oxygen & fuel in the engine equals more power...or MOPAR!!
Semper Fi,
Halo3
'00 Lt. Driftwood 4x4 SLT DQC w/5.9L
http://home.attbi.com/~quadcab
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Crusty
GenIII
4/12/2002
10:18:33
| RE: How turbo works...
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Message:
Thanks for the quick responses. How does the intercooler actually work? It looks like a large radiator, so is the air just passed through it and cooled by water or incoming air (air to air)?
It sounds pretty simple but I am sure it is more difficult than i think.
2002 4x4
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Crusty
GenIII
4/12/2002
10:25:29
| RE: How turbo works...
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I actually just thought of something elsee too, sorry guys, but I am pretty fired up about this.
So...When I was to get a new manifold made or headers, how is the exhaust pressure distributed into the turbo? What I am trying to say is, there are four exhaust tubes or channels in the manifold. The pictures i have seen show some have one of those pipes going into the turbo.
So is the best place to put it ideally on the collector of the header? Obviously it would make more pressure since it has all four tubes running into it. Would this affect the balance of the exhaus flow? One manifold has a turbo hooked up and the other doesnt?
Thanks for your help I really appreciate it.
2002 4x4
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alex
Dodge Dakota
JOIN HERE
4/12/2002
11:04:37
| RE: How turbo works...
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On a single turbo V-8, you have to route the exhaust from the side without the turbo over to the side with the turbo. THis is usually done with a single pipe from the header collector (or the outlet of the stock manifold which is a single tube) and it is joined into the exhaust manifold or header on the side with the turbo. The two come together and all the exhaust flows into the turbo's exhaust inlet.
This turns the rotor in the "rusty half" of the turbo housing which is shaft-mounted to a rotor in the "shiny half" of the turbo. This rotor in the shiny half is spinning at the same speed and compressing air that it has drawn in from the turbo's air inlet. THis compressed air is then shot thru the pipe that leads directly to the thorttlebody (in the case of our Dodges).
That's a half-assed explanation, but here's a link for more serious reading....
http://www.howstuffworks.com/turbo5.htm
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Duner
Dodge Dakota
JOIN HERE
4/12/2002
11:43:52
| RE: How turbo works...
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Here's another link you can check out also:
http://members.tripod.com/tomak3/page10.html
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alex
Dodge Dakota
JOIN HERE
4/12/2002
12:08:18
| RE: How turbo works...
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Hey, that's pretty informative, too!
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