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#1
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![]() "Bertie the Bunyip" wrote in message ... "Maxwell" luv2^fly99@cox.^net wrote in : "Bertie the Bunyip" wrote in message ... Didn't know any production aircraft had that. Well, to some extent almost every lightplane does . that's why the carb air intake faces forwards in most of them.Everything is a balancing act with an airplane. More air = more drag. You could try putting a couple of woks with tubes out the back to boost your MP, but you're going to pay for it. !Moooney must have spotted an area of the cowl that would not penalise you in this way and decided to utilise it. Really clever homebuilders do a lot of this kind of stuff as well as, and probably more more importantly, dealing with cooling drag. Have you put the other speed mods on your airplane? I think there's nearly ten knots available in seals and various other tidy it up fairings. Bertie Dumb ass. Its because the size of the scoop increases volume (not pressure), and you already have too much. Nope. Bertie How would you know, dumb ass? |
#2
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"Maxwell" luv2^fly99@cox.^net wrote in news:jTR0k.192$js1.25
@newsfe24.lga: "Bertie the Bunyip" wrote in message ... "Maxwell" luv2^fly99@cox.^net wrote in : "Bertie the Bunyip" wrote in message ... Didn't know any production aircraft had that. Well, to some extent almost every lightplane does . that's why the carb air intake faces forwards in most of them.Everything is a balancing act with an airplane. More air = more drag. You could try putting a couple of woks with tubes out the back to boost your MP, but you're going to pay for it. !Moooney must have spotted an area of the cowl that would not penalise you in this way and decided to utilise it. Really clever homebuilders do a lot of this kind of stuff as well as, and probably more more importantly, dealing with cooling drag. Have you put the other speed mods on your airplane? I think there's nearly ten knots available in seals and various other tidy it up fairings. Bertie Dumb ass. Its because the size of the scoop increases volume (not pressure), and you already have too much. Nope. Bertie How would you know, dumb ass? I know everything, obviously. Bertie |
#3
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On Jun 2, 9:28*am, Bertie the Bunyip wrote:
"Maxwell" luv2^fly99@cox.^net wrote in news:jTR0k.192$js1.25 @newsfe24.lga: "Bertie the Bunyip" wrote in message .. . "Maxwell" luv2^fly99@cox.^net wrote in : "Bertie the Bunyip" wrote in message ... Didn't know any production aircraft had that. Well, to some extent almost every lightplane does . that's why the carb air intake faces forwards in most of them.Everything is a balancing act with an airplane. More air = more drag. You could try putting a couple of woks with tubes out the back to boost your MP, but you're going to pay for it. !Moooney must have spotted an area of the cowl that would not penalise you in this way and decided to utilise it. Really clever homebuilders do a lot of this kind of stuff as well as, and probably more more importantly, dealing with cooling drag. Have you put the other speed mods on your airplane? I think there's nearly ten knots available in seals and various other tidy it up fairings. Bertie Dumb ass. Its because the size of the scoop increases volume (not pressure), and you already have too much. Nope. Bertie How would you know, dumb ass? I know everything, obviously. Bertie- Hide quoted text - - Show quoted text - Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. |
#4
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![]() Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. I think you are quite wrong. Ram air in fact gives us a half inch or so more manifold pressure, and that increases the total weight of the air-fuel mixture in the cylinder. Reduce your 'it doesn't matter argument to an extreme to see how it fails. As for turbos, the turbine is powered by the exhaust gasses coming from the engine, the exhaust gas itself is not reintroduced into the cylinders. The turbine itself could be powered by an electric motor, for that matter. That was the model for my tongue in cheek comment about using a shop vac to increase manifold pressure. |
#5
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On Mon, 2 Jun 2008 14:12:26 -0700 (PDT), Tony
wrote: Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. I think you are quite wrong. Ram air in fact gives us a half inch or so more manifold pressure, and that increases the total weight of the air-fuel mixture in the cylinder. Reduce your 'it doesn't matter argument to an extreme to see how it fails. As for turbos, the turbine is powered by the exhaust gasses coming from the engine, the exhaust gas itself is not reintroduced into the cylinders. The turbine itself could be powered by an electric motor, for that matter. That was the model for my tongue in cheek comment about using a shop vac to increase manifold pressure. will you marry me? -- dave hillstrom mhm15x4 zrbj "i believe that the word "****head" has become so wide spread and nearly meaningless as to qualify as a metavariable, similar to "foo" and "bar". and that it should uphold the responsibilities and enjoy the privileges of the new office. here here!!" -dave hillstrom |
#6
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On Mon, 02 Jun 2008 19:51:47 -0400, dave hillstrom
wrote: On Mon, 2 Jun 2008 14:12:26 -0700 (PDT), Tony wrote: Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. I think you are quite wrong. Ram air in fact gives us a half inch or so more manifold pressure, and that increases the total weight of the air-fuel mixture in the cylinder. Reduce your 'it doesn't matter argument to an extreme to see how it fails. As for turbos, the turbine is powered by the exhaust gasses coming from the engine, the exhaust gas itself is not reintroduced into the cylinders. The turbine itself could be powered by an electric motor, for that matter. That was the model for my tongue in cheek comment about using a shop vac to increase manifold pressure. will you marry me? dave the term is not foo and bar. foo *is* a term from another war and another airforce but the term you've so successfully stuffed up is fubar fubar is a vietnam era acronym of F***ed up beyond all recognition. your sig line is a snafu (situation normal all F***ed up) Stealth Pilot |
#7
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Stealth Pilot wrote:
On Mon, 02 Jun 2008 19:51:47 -0400, dave hillstrom wrote: On Mon, 2 Jun 2008 14:12:26 -0700 (PDT), Tony wrote: Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. I think you are quite wrong. Ram air in fact gives us a half inch or so more manifold pressure, and that increases the total weight of the air-fuel mixture in the cylinder. Reduce your 'it doesn't matter argument to an extreme to see how it fails. As for turbos, the turbine is powered by the exhaust gasses coming from the engine, the exhaust gas itself is not reintroduced into the cylinders. The turbine itself could be powered by an electric motor, for that matter. That was the model for my tongue in cheek comment about using a shop vac to increase manifold pressure. will you marry me? dave the term is not foo and bar. foo *is* a term from another war and another airforce but the term you've so successfully stuffed up is fubar fubar is a vietnam era acronym of F***ed up beyond all recognition. your sig line is a snafu (situation normal all F***ed up) Yore 'rong. foo and bar are metasyntactic variables. They aren't acronyms (they're metasyntactic variables). Like being the John and Jane Doe of computer engineering - placeholders. Fubar predates WWII. -- nuts |
#8
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On Jun 2, 5:12*pm, Tony wrote:
Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. *All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. *Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. I think you are quite wrong. Ram air in fact gives us a half inch or so more manifold pressure, and that increases the total weight of the air-fuel mixture in the cylinder. Reduce your 'it doesn't matter argument to an extreme to see how it fails. As for turbos, the turbine is powered by the exhaust gasses coming from the engine, the exhaust gas itself is not reintroduced into the cylinders. The turbine itself could be powered by an electric motor, for that matter. That was the model for my tongue in cheek comment about using a shop vac to increase manifold pressure. The air going into the manifold has the same atmospheric weight as if it was outside the manifold, what makes it denser is the addition of fuel into the air/fuel mixture, unless the air is in a perfect vaccum it will not increase in pressure and most certainly not density and the turbos do reintroduce fuel back into the combustion mixture, If you've ever seen a read out of carbon emissions for a non turbo vehicle it still has enough unburnt fuel to power your vehicle for another 5% of your fuel consumption and turbos IF powered by a motorized turbine are as useless as ram air because of the statement I made in my previous post. your intake is only as much as the volume of your cylinders |
#9
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On Jun 2, 10:00*pm, Billy Crabs wrote:
On Jun 2, 5:12*pm, Tony wrote: Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. *All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. *Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. I think you are quite wrong. Ram air in fact gives us a half inch or so more manifold pressure, and that increases the total weight of the air-fuel mixture in the cylinder. Reduce your 'it doesn't matter argument to an extreme to see how it fails. As for turbos, the turbine is powered by the exhaust gasses coming from the engine, the exhaust gas itself is not reintroduced into the cylinders. The turbine itself could be powered by an electric motor, for that matter. That was the model for my tongue in cheek comment about using a shop vac to increase manifold pressure. The air going into the manifold has the same atmospheric weight as if it was outside the manifold, what makes it denser is the addition of fuel into the air/fuel mixture, unless the air is in a perfect vaccum it will not increase in pressure and most certainly not density and the turbos do reintroduce fuel back into the combustion mixture, If you've ever seen a read out of carbon emissions for a non turbo vehicle it still has enough unburnt fuel to power your vehicle for another 5% of your fuel consumption *and turbos IF powered by a motorized turbine are as useless as ram air because of the statement I made in my previous post. your intake is only as much as the volume of your cylinders- Hide quoted text - - Show quoted text - I retract that last statement, turbos are not useless, I would be contradicting myself if I said they were. |
#10
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On Jun 2, 8:00 pm, Billy Crabs wrote:
On Jun 2, 5:12 pm, Tony wrote: Ram air is only as useful the allowing air to get to your carburater faster but is not necessarily used. When your piston is on its intake stroke(vaccum) your combustion chamber can only draw in enough air that is in conjuction to the chambers volume and all other air that is present after the compression stroke is exported to engines smog devices and is recirculated only AFTER being filtered. All engines come off the assembly lines, be it an airplane motor or a vehicle motor, to draw the amount of air that it needs to run at opptimum performance. Ram Air is a myth and don't try to throw "turbo" into the conversation because turbo is recircualted exhaust and still has unburnt fuel in the fumes. I think you are quite wrong. Ram air in fact gives us a half inch or so more manifold pressure, and that increases the total weight of the air-fuel mixture in the cylinder. Reduce your 'it doesn't matter argument to an extreme to see how it fails. As for turbos, the turbine is powered by the exhaust gasses coming from the engine, the exhaust gas itself is not reintroduced into the cylinders. The turbine itself could be powered by an electric motor, for that matter. That was the model for my tongue in cheek comment about using a shop vac to increase manifold pressure. The air going into the manifold has the same atmospheric weight as if it was outside the manifold, what makes it denser is the addition of fuel into the air/fuel mixture, unless the air is in a perfect vaccum it will not increase in pressure and most certainly not density and the turbos do reintroduce fuel back into the combustion mixture, If you've ever seen a read out of carbon emissions for a non turbo vehicle it still has enough unburnt fuel to power your vehicle for another 5% of your fuel consumption and turbos IF powered by a motorized turbine are as useless as ram air because of the statement I made in my previous post. your intake is only as much as the volume of your cylinders Turbocharging can be set to two different levels: Turbonormalizing, which brings manifold pressure to sea level pressure; and boosting, which raises manifold pressures to more than 30" Hg. If an engine is boosted, the air density in the cylinder at the bottom of the intake stroke could be well above atmospheric. Dan |
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