Turbocharged vs Supercharged
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Joined: Jan 2005
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From: Atlanta
Originally Posted by J'sBlackAP1,Nov 6 2008, 11:27 AM
I DD my turbo S and i have NO reliability issues. I don't see why one would be better than the other since the tune determines the reliability.
Besides, blowers waste gas
Besides, blowers waste gas
Joined: Aug 2006
Posts: 3,214
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From: Huntsville, AL
people assume that superchargers waste gas because they are being driven at all times since that are directly coupled with the crank via the supercharger belt.
What people fail to realize is the designs of today have a internal by pass the opens under vacuum to prevent there from being any work done on the incoming air charge.
likewise the the TB is placed before a roots/twin screw to throttle the air charge at partial throttle angles.
So with a proper designed supercharger setup there should be next to no loss of MPH when cruising at a constant speed.
I allways get 30-32MPG on the interstate with my roots supercharger (averaged over 6 trips of over 600miles round trip.
Now the same argument can be said about turbos that they reduce MPG because they cause a restriction in the exhaust path.
With a turbo setup once the turbo is spinning at a nice steady state speed on the interstate there is effectively no drag in the exhaust system that would cause a reduction in MPG
Likewise the turbo speed is not sufficient to increase the pressure if the air charge there for no work is being done on the air charge.
The turbo/supercharger causing a loss of MPG on the interstate is like saying that I increased my MPG by putting on a lightweight flywheel.
What people fail to realize is the designs of today have a internal by pass the opens under vacuum to prevent there from being any work done on the incoming air charge.
likewise the the TB is placed before a roots/twin screw to throttle the air charge at partial throttle angles.
So with a proper designed supercharger setup there should be next to no loss of MPH when cruising at a constant speed.
I allways get 30-32MPG on the interstate with my roots supercharger (averaged over 6 trips of over 600miles round trip.
Now the same argument can be said about turbos that they reduce MPG because they cause a restriction in the exhaust path.
With a turbo setup once the turbo is spinning at a nice steady state speed on the interstate there is effectively no drag in the exhaust system that would cause a reduction in MPG
Likewise the turbo speed is not sufficient to increase the pressure if the air charge there for no work is being done on the air charge.
The turbo/supercharger causing a loss of MPG on the interstate is like saying that I increased my MPG by putting on a lightweight flywheel.
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Joined: Oct 2005
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Originally Posted by MugenRioS2k,Nov 6 2008, 09:28 PM
people assume that superchargers waste gas because they are being driven at all times since that are directly coupled with the crank via the supercharger belt.
What people fail to realize is the designs of today have a internal by pass the opens under vacuum to prevent there from being any work done on the incoming air charge.
likewise the the TB is placed before a roots/twin screw to throttle the air charge at partial throttle angles.
So with a proper designed supercharger setup there should be next to no loss of MPH when cruising at a constant speed.
I allways get 30-32MPG on the interstate with my roots supercharger (averaged over 6 trips of over 600miles round trip.
Now the same argument can be said about turbos that they reduce MPG because they cause a restriction in the exhaust path.
With a turbo setup once the turbo is spinning at a nice steady state speed on the interstate there is effectively no drag in the exhaust system that would cause a reduction in MPG
Likewise the turbo speed is not sufficient to increase the pressure if the air charge there for no work is being done on the air charge.
The turbo/supercharger causing a loss of MPG on the interstate is like saying that I increased my MPG by putting on a lightweight flywheel.
What people fail to realize is the designs of today have a internal by pass the opens under vacuum to prevent there from being any work done on the incoming air charge.
likewise the the TB is placed before a roots/twin screw to throttle the air charge at partial throttle angles.
So with a proper designed supercharger setup there should be next to no loss of MPH when cruising at a constant speed.
I allways get 30-32MPG on the interstate with my roots supercharger (averaged over 6 trips of over 600miles round trip.
Now the same argument can be said about turbos that they reduce MPG because they cause a restriction in the exhaust path.
With a turbo setup once the turbo is spinning at a nice steady state speed on the interstate there is effectively no drag in the exhaust system that would cause a reduction in MPG
Likewise the turbo speed is not sufficient to increase the pressure if the air charge there for no work is being done on the air charge.
The turbo/supercharger causing a loss of MPG on the interstate is like saying that I increased my MPG by putting on a lightweight flywheel.
I would love to get 32mpg!
