why aren't turbos made like this:
03-01-2005, 10:58 PM
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why aren't turbos made like this:
on the exhaust side, have a 2.5 inch gear connected to the exhaust turbine, and on the intake side, have a .5 inch gear connected to the intake turbine. i know this would offset the whole turbo, and it would get rid of lag, although the only downside i could see is that you'd be using or needing a wastegate rather quickly...
any info?
any info?
03-02-2005, 12:12 AM
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Re: why aren't turbos made like this: (SkRiBLaH)
I really dont know for sure...but I think exhaust gas would have a hard time spinning that? That's my shot at it.
03-02-2005, 12:14 AM
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Re: why aren't turbos made like this: (SkRiBLaH)
Because the turbo NEEDS to spin fast to generate the power it needs for the compressor. The shaft torque is very small, so it needs a high RPM to generate the power.
Plus gears rob power when they transmit torque, especially at high RPM. So you'd have additional losses. Besides - it'd still have the non-linear turbine/compressor response to deal with(which is the big reason why turbos have "lag").
There's a reason the engineers that designed them did it the way they did - it's the best way to do it(with our current technology at least).
Plus gears rob power when they transmit torque, especially at high RPM. So you'd have additional losses. Besides - it'd still have the non-linear turbine/compressor response to deal with(which is the big reason why turbos have "lag").
There's a reason the engineers that designed them did it the way they did - it's the best way to do it(with our current technology at least).
03-02-2005, 01:06 AM
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Re: why aren't turbos made like this: (Def)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Def »</TD></TR><TR><TD CLASS="quote">Because the turbo NEEDS to spin fast to generate the power it needs for the compressor. The shaft torque is very small, so it needs a high RPM to generate the power.
Plus gears rob power when they transmit torque, especially at high RPM. So you'd have additional losses. Besides - it'd still have the non-linear turbine/compressor response to deal with(which is the big reason why turbos have "lag").
There's a reason the engineers that designed them did it the way they did - it's the best way to do it(with our current technology at least).</TD></TR></TABLE>
Turbos were designed a long time ago. I'm sure we have better technology today than they did then considering they were on cars before we even had Autocad.
edit: i'm not saying it would work, i'm just saying that it doesn't hurt to rethink things once in a while.
Plus gears rob power when they transmit torque, especially at high RPM. So you'd have additional losses. Besides - it'd still have the non-linear turbine/compressor response to deal with(which is the big reason why turbos have "lag").
There's a reason the engineers that designed them did it the way they did - it's the best way to do it(with our current technology at least).</TD></TR></TABLE>
Turbos were designed a long time ago. I'm sure we have better technology today than they did then considering they were on cars before we even had Autocad.
edit: i'm not saying it would work, i'm just saying that it doesn't hurt to rethink things once in a while.
03-09-2005, 12:41 AM
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Re: why aren't turbos made like this: (njn63)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by njn63 »</TD></TR><TR><TD CLASS="quote">Turbos were designed a long time ago. I'm sure we have better technology today than they did then considering they were on cars before we even had Autocad.
edit: i'm not saying it would work, i'm just saying that it doesn't hurt to rethink things once in a while.</TD></TR></TABLE>
Turbos are constantly being updated and refined. The aerodynamics of the blades are always trying to be improved - hence the new GT series wheels that make more power and have less lag.
Buying a brand new $1,400+ turbo right now gets you the absolute BEST centrifugal turbine/compressor technology available to the consumer market, and software way more complex than AutoCAD was used in their development.
edit: i'm not saying it would work, i'm just saying that it doesn't hurt to rethink things once in a while.</TD></TR></TABLE>
Turbos are constantly being updated and refined. The aerodynamics of the blades are always trying to be improved - hence the new GT series wheels that make more power and have less lag.
Buying a brand new $1,400+ turbo right now gets you the absolute BEST centrifugal turbine/compressor technology available to the consumer market, and software way more complex than AutoCAD was used in their development.
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