Erm... Dont Shoot
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Joined: Mar 2003
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From: Sunny South Florida :)
that shape is called a centrifuge or something, it is shaped like that because it accelorates the air into the turbo. You see the same look on webber carborators for that same reason. Air sticks to curved surfaces and is acceltorated into the turbo.
Thread Starter
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From: in my pants
Originally Posted by mazdadrifter' date='Sep 25 2003, 11:23 AM
that shape is called a centrifuge or something, it is shaped like that because it accelorates the air into the turbo. You see the same look on webber carborators for that same reason. Air sticks to curved surfaces and is acceltorated into the turbo.
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Joined: May 2002
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From: Okinawa, Japan
Originally Posted by epion2985' date='Sep 26 2003, 05:13 AM
?? that was random.... i didnt say anything about the shape of the exaust housing ^^
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From: Okinawa, Japan
Originally Posted by epion2985' date='Sep 26 2003, 05:11 AM
i see... the gasses go through the turbo so fast though do they really have time to cool?
In the case of the picture at hand, I seriously doubt that the "shield" has any effect on keeping the EGTs up.
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Joined: Apr 2002
Posts: 2,930
From: IL
Do research on the subject
before you start telling people who answer your questions they are wrong and/or make no sense.
some books on thermodynamics/physics might do you some good too.
before you start telling people who answer your questions they are wrong and/or make no sense.
some books on thermodynamics/physics might do you some good too.
Thread Starter
Senior Member
Joined: Jul 2003
Posts: 227
From: in my pants
Originally Posted by pengaru' date='Sep 25 2003, 12:23 PM
Do research on the subject
before you start telling people who answer your questions they are wrong and/or make no sense.
some books on thermodynamics/physics might do you some good too.
before you start telling people who answer your questions they are wrong and/or make no sense.
some books on thermodynamics/physics might do you some good too.
thanks for the numbers jspecracer. Form this I understand that wraping the down pipe is a must, shiled the engine bay from bad heat and use it to help the turbo, right
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From: Okinawa, Japan
I barely saw any difference in the spool up of my turbo...but it's so big I guess it wouldn't matter anyways. Mainly I did it so I wouldn't burn my hands on the downpipe when taking it off when the engine was still hot. I know I talked to Dragon about it when he had his turbo ZC CRX with heat wrapped exhaust manifold and downpipe. Said the spool up was MUCH better, but his EGTs went out the roof. I only wrapped the downpipe, not my manifold because the manifold I have now is stainless steel...so it has a good chance of warping, which would increase if there was more heat(due to the heat wrapping).
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From: London, Ontario
Originally Posted by epion2985' date='Sep 25 2003, 01:21 PM
that makes no sence. Turbos are spooled by the pressure of the exast gases, not their temperature, you can blow whatever you want through the exast housing to spool the turbo hot or cold. The only way I can see how heat helps is when thingsare hot they expand, so with hot gasses you would need less actuall gas (then cold gases) because the voluem will be bigger. But that means the temp of the gasses ENTERING the turbo play a key role, when inside heating them up seem rather pointless because by the time they will they will be out of the turbo already. I dont know, just trying to reason it out....
Those heat shields aren't going to help the turbo much, I think, they are mostly meant to protect other components from heat radiating from the housing.
