fan cool turbo
05-06-2008, 10:57 AM
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Re: fan cool turbo (avotegra)
isn't gonna make much of a difference. You don't really wanna do that anyways. If anything, get a turbo blanket for the hot side to keep the heat in, and make sure your intercooler is big enough for your power so the intake charge is as cool as it can be.
05-06-2008, 11:06 AM
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Re: fan cool turbo (avotegra)
again, wrap the turbo with a turbo blanket
you want to keep as much heat in the turbine side as possible. As for frying the dipstick, what manifold are you using?
you want to keep as much heat in the turbine side as possible. As for frying the dipstick, what manifold are you using?
05-06-2008, 11:40 AM
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Re: fan cool turbo (avotegra)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by avotegra »</TD></TR><TR><TD CLASS="quote">explain why.........more heat more boost or what.........</TD></TR></TABLE>
more heat = faster spool
more heat = faster spool
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05-06-2008, 12:22 PM
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Re: fan cool turbo (avotegra)
I can tell you that a fan is not going to cool the nearly red-hot turbo and manifold no matter how fast it is, it won't be big enough to create enough flow.
your best bet is to heat wrap the downpipe, get a turbo blanket for the turbine side, and make sure you've got an intercooler that is big enough and as efficient as possible.
Control of intake charge temps and exhaust gas temps is what makes everything better. Also, small turbine sides generally will produce more heat up top due to backpressure from the smaller turbine wheel causing flow to be blocked/slowed down.
Larger turbines, while causing lag, decrease temps higher up in rpm due to better flow.
your best bet is to heat wrap the downpipe, get a turbo blanket for the turbine side, and make sure you've got an intercooler that is big enough and as efficient as possible.
Control of intake charge temps and exhaust gas temps is what makes everything better. Also, small turbine sides generally will produce more heat up top due to backpressure from the smaller turbine wheel causing flow to be blocked/slowed down.
Larger turbines, while causing lag, decrease temps higher up in rpm due to better flow.
05-06-2008, 12:51 PM
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Re: fan cool turbo (LA_HONDAS)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LA_HONDAS »</TD></TR><TR><TD CLASS="quote">
more heat = faster spool </TD></TR></TABLE>
This is NOT true in all cases or in the simple way it was offered.
A turbocharger "works" by converting energy (heat). When you heat something, in this case a gas, you excite the molecules. Excited molecules "want" to get away from each other (read: expand). The only time they can do that is after the turbine since the header holds them together. The action of them escaping into all that room post turbine is the energy we capture in the turbine wheel that drives the compressor wheel via the shaft to make more pressure to feed the intake to make... well you get it by now.
About 85% of the energy that drives the turbo is from heat energy and only about 15% comes from the actual force of the molecules acting on the turbine wheel... what you might think of as pressure, as blowing on a pinwheel. So... keep as much of the heat (generated from combustion) in the system as you can and then give it as much room as you can to expand after the turbine. This is why an ideal turbo exhaust would be about 6 inches long. Not very practical for street driven applications hence the popularity of the 3" exhaust. It is possible to get the turbine too hot from poor timing and casue damage, this is where more heat does not equal better performance.
Hope this very simplified (overly?) explanation helps.
more heat = faster spool
</TD></TR></TABLE>This is NOT true in all cases or in the simple way it was offered.
A turbocharger "works" by converting energy (heat). When you heat something, in this case a gas, you excite the molecules. Excited molecules "want" to get away from each other (read: expand). The only time they can do that is after the turbine since the header holds them together. The action of them escaping into all that room post turbine is the energy we capture in the turbine wheel that drives the compressor wheel via the shaft to make more pressure to feed the intake to make... well you get it by now.
About 85% of the energy that drives the turbo is from heat energy and only about 15% comes from the actual force of the molecules acting on the turbine wheel... what you might think of as pressure, as blowing on a pinwheel. So... keep as much of the heat (generated from combustion) in the system as you can and then give it as much room as you can to expand after the turbine. This is why an ideal turbo exhaust would be about 6 inches long. Not very practical for street driven applications hence the popularity of the 3" exhaust. It is possible to get the turbine too hot from poor timing and casue damage, this is where more heat does not equal better performance.
Hope this very simplified (overly?) explanation helps.
05-06-2008, 12:58 PM
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Re: fan cool turbo (Alfa Turbo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Alfa Turbo »</TD></TR><TR><TD CLASS="quote">
This is NOT true in all cases or in the simple way it was offered.
A turbocharger "works" by converting energy (heat). When you heat something, in this case a gas, you excite the molecules. Excited molecules "want" to get away from each other (read: expand). The only time they can do that is after the turbine since the header holds them together. The action of them escaping into all that room post turbine is the energy we capture in the turbine wheel that drives the compressor wheel via the shaft to make more pressure to feed the intake to make... well you get it by now.
About 85% of the energy that drives the turbo is from heat energy and only about 15% comes from the actual force of the molecules acting on the turbine wheel... what you might think of as pressure, as blowing on a pinwheel. So... keep as much of the heat (generated from combustion) in the system as you can and then give it as much room as you can to expand after the turbine. This is why an ideal turbo exhaust would be about 6 inches long. Not very practical for street driven applications hence the popularity of the 3" exhaust. It is possible to get the turbine too hot from poor timing and casue damage, this is where more heat does not equal better performance.
Hope this very simplified (overly?) explanation helps.</TD></TR></TABLE>
yes i know that
This is NOT true in all cases or in the simple way it was offered.
A turbocharger "works" by converting energy (heat). When you heat something, in this case a gas, you excite the molecules. Excited molecules "want" to get away from each other (read: expand). The only time they can do that is after the turbine since the header holds them together. The action of them escaping into all that room post turbine is the energy we capture in the turbine wheel that drives the compressor wheel via the shaft to make more pressure to feed the intake to make... well you get it by now.
About 85% of the energy that drives the turbo is from heat energy and only about 15% comes from the actual force of the molecules acting on the turbine wheel... what you might think of as pressure, as blowing on a pinwheel. So... keep as much of the heat (generated from combustion) in the system as you can and then give it as much room as you can to expand after the turbine. This is why an ideal turbo exhaust would be about 6 inches long. Not very practical for street driven applications hence the popularity of the 3" exhaust. It is possible to get the turbine too hot from poor timing and casue damage, this is where more heat does not equal better performance.
Hope this very simplified (overly?) explanation helps.</TD></TR></TABLE>
yes i know that
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