Turbo rpms?

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93RPS13
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Does anyone know how fast turbos turbines are spinning to create boost? Thanks


SeVa-S13
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It varies between turbos and how much boost and what flow rate. Most midsized turbos see from 50k to 100k+ easily.

nissanfanatic
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If you look at flow charts, most of them list RPM lines.

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93RPS13
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120000-220000 right?

SeVa-S13
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That's like the smallest aftermarket turbo ever, meant for lawnmowers and the like. Only very small turbos spin that fast.

nissanfanatic
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Werd.

Smaller impellers can be spun faster due to less centrifugal force.

Some of your larger turbos don't even clock in at 100k at high boost.

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93RPS13
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i trying to think up a turbo shifter cart that **** would be crazy... anyone know of any BIG oem TURBO in cars that i can find in a junkyard?
Modified by 93RPS13 at 8:56 PM 1/3/2006

freakyjason
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there is no such thing as "cetrifugal" force. it is known as centripital force actually. they are similar in concept but "centrifugal" force implies that there are forces applied to an object emminating straight out from the center of the circular path of a revolving or rotating mass. this is not actualy so. the force is applied at a tangent to the center of the circle (the sum of the forces can be resolved in a series of simple vector diagrams and right triangle in respect to the center of the circle and the objects path in terms of its centripital acceleration). it is like when using a sling to launch a projectile you dont release the string right when the projectile is pointing at your target, you release it a little bit before. oh, and also. it would spin faster due to less inertia and mass. oh and while im here (this may seem kind of off topic) can you guys tell me where i can find a good ka24de? my timing got very fed and i rahter do a swap than fix it.
nissanfanatic wrote:Werd.

Smaller impellers can be spun faster due to less centrifugal force.
Modified by freakyjason at 7:31 PM 1/4/2006

nissanfanatic
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I was referring to the ability of the wheel being able to stay together under the stress of mass*acceleration. Hence overspeeding.

However you choose to figure these speeds/stress levels, you still don't know at what stress level the impeller blades will separate from the wheel. And my original statement, no matter how vague or "incorrect" it is, still stands as true.

So, thanks Ebert.

nissanfanatic
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Quote »oh and while im here (this may seem kind of off topic) can you guys tell me where i can find a good ka24de?[/quote]http://www.car-part.com

freakyjason
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thanks man. hey, i like physics and i like cars. when you mix 'em together i get a little excited.

nissanfanatic
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Oh yea, BTW...

http://dictionary.reference.co...fugal

lol

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Chezedik
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Mine is supposed to create boost in the 2.8-3 range.

freakyjason
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thats pretty funny that dictionary.com would not mention that the concept is false. i actually dont know where that idea came from but it is a made up phenomenon. i wasnt saying that there was no such word just that there was no such force. ill have to ask my AP physics professor about this one. thats cool that you looked it up though. it will give me something to do while im not drifting! oh wait i finally understand what you mean!!!! you definately had th right idea its just that the concept you mentioned did not exsit. i thought you were talking about how fast they spool up. hey visit this site if you're interestead! dont just read the first part, read the whole thing http://phun.physics.virginia.e....html


Modified by freakyjason at 2:35 PM 1/5/2006

nissanfanatic
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Alright.. I see what you are saying...

Its not a separate force... Centrifugal force is basically another name for the law of inertia being applied to an object moving in a circle.

Hence, an object tends to remain at a constant velocity, yet whatever object is traveling in a circle is constantly changing direction against its will. This "tendency," or "law" if you will, that enforces an object to remain at a constant velocity(direction to be more to the point. I understand vector and scalar quantities, but direction is the more important part of velocity in what I'm saying), is the "Centrifugal force," that is commonly used as a term.

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Chezedik
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Wouldn't it be more momentum, than inertia.

nissanfanatic
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No, its inertia. The resistance to an object changing velocity is EXACTLY what is implied when the term centrifugal force is used.

Momentum is what would be used to determine how much force exists. Per say, we wanted to find out just how much force existed if the impeller were travelling at 1600fps, the product of the impeller's mass and velocity would give us its "momentum,".

We are simply discussing what exactly centrifugal force implies when someone uses that term.

freakyjason
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you guys are cool. oh, and sweet 240 by the way. i have a 92 as well. maybe someday it will be as sick as yours. you should see my page. http://www.cardomain.com/ride/2193428
Modified by freakyjason at 9:21 PM 1/6/2006


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