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Author Topic: turbo boost reading???  (Read 9947 times)

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Offline fastcorvairs

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Re: turbo boost reading???
« Reply #30 on: August 07, 2010, 03:22:26 PM »
Ya boost is from air flow (from the turbine on the compressor side) but it takes the exhaust coming out at thousand degrees or better into the exhaust impeller to make the turbine spin fast enough to make that boost.  Kind of look at it like hot air expanding into a small area.  The hotter it is the more it expands.  So the faster it moves.
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Offline fabr

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Re: turbo boost reading???
« Reply #31 on: August 07, 2010, 03:28:50 PM »
Quote from: sandracer1 on August 07, 2010, 01:23:06 PM
bring A beer? What will you drink?
Mich Ultra will be fine thank you. ;)
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Offline fabr

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Re: turbo boost reading???
« Reply #32 on: August 07, 2010, 03:31:04 PM »
Quote from: sandracer1 on August 07, 2010, 02:54:51 PM
Looks like I will need to do some research before I ask questions. I did not know about all of these variables. I always thought boost was from airflow alone. I did not realize heat played that much of a roll but it does make sense.
That's why  we ask questions ------so we can help. We don't do it for the "eff with you "factor. ;D ;D
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline sandracer1

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Re: turbo boost reading???
« Reply #33 on: August 07, 2010, 03:35:37 PM »
Quote from: masterfabr on August 07, 2010, 03:31:04 PM
That's why  we ask questions ------so we can help. We don't do it for the "eff with you "factor. ;D ;D

Point taken. My appologies. Mich Ultra, I guess you want it bottles too, huh? Oh $hit, Mich only comes in bottles don't it. I can't afford that high dollar stuff. Bud light or Coors for me.
« Last Edit: August 07, 2010, 03:38:21 PM by sandracer1 »
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Offline fabr

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Re: turbo boost reading???
« Reply #34 on: August 07, 2010, 03:36:20 PM »
Now for my 2 cents on the heat thing. Yes there is heat as a natural byproduct of the additional fuel being introiduced under load but it's really the additional VOLUME of exhaust gasses as opposed to the engine speed (or normally aspirated airflow needs at any given rpm)that spools the turbo. A turbo would work with no heat at all other than heat generated by air in the compressor side if there was a large supply of pressurized cool air to spool the turbo.In other words it's the back pressure that spools up a turbo.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline fabr

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Re: turbo boost reading???
« Reply #35 on: August 07, 2010, 03:36:53 PM »
Quote from: sandracer1 on August 07, 2010, 03:35:37 PM
Point taken. My appologies. Mich Ultra, I guess you want it bottles too, huh?
No such thing as cans my man.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline fabr

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Re: turbo boost reading???
« Reply #36 on: August 07, 2010, 03:37:55 PM »
BTW ,I'm just kidding. I do want to meet up with you though! I'm in slot 11 at Dueces Wild.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline fabr

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Re: turbo boost reading???
« Reply #37 on: August 07, 2010, 03:42:41 PM »
Another thing-------------------your question about WHEN it should show boost and how much is closely related to what we just spoke of. 8000 rpm no or light load means low boost. 3000 rpm and high engine load and maybe a bunch of boost. SOooooooo as I was getting at earlier is that there is no real answer to your question. All we can really do is give you info that will allow you to discover what your problem is or IF you have a problem.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline sandracer1

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Re: turbo boost reading???
« Reply #38 on: August 07, 2010, 03:48:27 PM »
I went back and tried to edit before you saw it but did not make it. I will bring some beers when I introduce myself to the group. I am getting ready to hit the clock and head home to dial-up so I will not be online til Monday. Thanks all for you education today. See Ya.
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Offline fabr

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Re: turbo boost reading???
« Reply #39 on: August 07, 2010, 03:51:32 PM »
Go fix that turbo mount and then try out that gauge!
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

SPEC

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Re: turbo boost reading???
« Reply #40 on: August 07, 2010, 03:54:47 PM »
MICHELOB GOLDEN DRAFT rofl ;D
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Offline Carlriddle

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Re: turbo boost reading???
« Reply #41 on: August 07, 2010, 04:46:15 PM »
 kick kick  Beer cold, just cold.
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chrishallett83

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Re: turbo boost reading???
« Reply #42 on: August 07, 2010, 07:00:22 PM »
Quote from: masterfabr on August 07, 2010, 03:36:20 PM
Now for my 2 cents on the heat thing. Yes there is heat as a natural byproduct of the additional fuel being introiduced under load but it's really the additional VOLUME of exhaust gasses as opposed to the engine speed (or normally aspirated airflow needs at any given rpm)that spools the turbo. A turbo would work with no heat at all other than heat generated by air in the compressor side if there was a large supply of pressurized cool air to spool the turbo.In other words it's the back pressure that spools up a turbo.

You mean gas flow or pulses, right?
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Offline fabr

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Re: turbo boost reading???
« Reply #43 on: August 07, 2010, 09:18:41 PM »
Not really. But yes,there are pulses.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline Boostinjdm

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Re: turbo boost reading???
« Reply #44 on: August 07, 2010, 09:43:09 PM »
So where exactly does all that extra volume come from Fabr.....
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This post has been edited due to content.
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