Supercharger Vs Turbocharger
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That's what happens when you use your bumpstops as springs.
Anyway, the turbo is technically an exhaust driven supercharger. There are also two kinds of superchargers:
The centrifugal, which is basically the exhaust half of a turbo driven by a belt, and the Roots type blower, which is two interlocking screws. The difference is that a centrifugal SC builds boost exponentially depending on RPM. You won't notice much on the low end except for a mean whistle, but power climbs very rapidly as revs rise. Centrifugal SCs are generally used where space is an issue as they're small and don't require much aside from a belt and some tubing.
Roots type blowers are OE equipment on many cars such as the Kompressor Benzses, F150 Lightnings, and basically anything supercharged from the factory have good reliability provied you don't have a really small pulley on it. They're the kind that sit on top of an engine like those old muscle cars have. If you ever look at the dyno chart of a Roots blower, it's basically the stock curves but higher on the chart. The Roots has the best response (although less effeciency and less peak power) time and can build full boost the instant you put your foot down.
All with the exception of turbochargers have parasitic drag to some degree, Roots being the worst in this case. Mercedes counters by using an electromagnetic pulley that engages at part throttle. It gets rid of any parasitic drag the supercharger might have at part throttle. If any of you want to hear what a supercharger sounds like when it's permanently attached to the engine, follow this link: http://www.corradocentral.com/movies/driveby.mpg
If I'm missing anything, or you guys want anything clarified, just reply.
Anyway, the turbo is technically an exhaust driven supercharger. There are also two kinds of superchargers:
The centrifugal, which is basically the exhaust half of a turbo driven by a belt, and the Roots type blower, which is two interlocking screws. The difference is that a centrifugal SC builds boost exponentially depending on RPM. You won't notice much on the low end except for a mean whistle, but power climbs very rapidly as revs rise. Centrifugal SCs are generally used where space is an issue as they're small and don't require much aside from a belt and some tubing.
Roots type blowers are OE equipment on many cars such as the Kompressor Benzses, F150 Lightnings, and basically anything supercharged from the factory have good reliability provied you don't have a really small pulley on it. They're the kind that sit on top of an engine like those old muscle cars have. If you ever look at the dyno chart of a Roots blower, it's basically the stock curves but higher on the chart. The Roots has the best response (although less effeciency and less peak power) time and can build full boost the instant you put your foot down.
All with the exception of turbochargers have parasitic drag to some degree, Roots being the worst in this case. Mercedes counters by using an electromagnetic pulley that engages at part throttle. It gets rid of any parasitic drag the supercharger might have at part throttle. If any of you want to hear what a supercharger sounds like when it's permanently attached to the engine, follow this link: http://www.corradocentral.com/movies/driveby.mpg
If I'm missing anything, or you guys want anything clarified, just reply.
![[rofl]](/images/smilies/icon_smile_rofl.gif "ROFL [rofl]"){kind=icon}
![[:D]](/images/smilies/biggrin.png "Big Grin [:D]")
It's much better to compare one turbo to one supercharger than trying to compare them in some vague sweeping statement and there are many variants of each type.
Custom3- this is not necessarily true, that the larger the turbo the less "restrictive the airflow" whatever that means.
There are plenty of tuners out there tuning turbo cars, I can't imagine that Korman is one of the best. They are certainly among the most overpriced.
Custom3- this is not necessarily true, that the larger the turbo the less "restrictive the airflow" whatever that means.
There are plenty of tuners out there tuning turbo cars, I can't imagine that Korman is one of the best. They are certainly among the most overpriced.
Go to www.rgmotorsport.com this guy has the fastest road legal BMW in South Africa, and he runs a highly modded E36 3.2lt M3 with a Supercharger and NOS. now I have been in this thing and let me tell you this is scary. The ultimate is a dual setup Supercharger and a Turbo. If you go to www.speedandsound.co.za there is a red Toyota Conquest that runs a dual setup.
1993 Conquest Rsi Supercharged and Turboed
This is a 1993 Toyota Conquest RSi that has a custom body kit, with 2002 spec lights and a modified Mitsubishi Rally wing to fit the hatch. Got DTM Style mirrors, White Momo GT2's Momo pedals , and Steering Wheel.
1.6 16v 4AGE Toyota motor, TDO6 turbo with cusom manifold, MR2 Supercharger , bunch of other stuff in the engine.
Transmission is a TRD gears and LSD
Suspension is coil over, but is the same setup as the Conquest Rally Car (Spec's from Toyota Japan)
This is a 1993 Toyota Conquest RSi that has a custom body kit, with 2002 spec lights and a modified Mitsubishi Rally wing to fit the hatch. Got DTM Style mirrors, White Momo GT2's Momo pedals , and Steering Wheel.
1.6 16v 4AGE Toyota motor, TDO6 turbo with cusom manifold, MR2 Supercharger , bunch of other stuff in the engine.
Transmission is a TRD gears and LSD
Suspension is coil over, but is the same setup as the Conquest Rally Car (Spec's from Toyota Japan)
Um what? The whole idea behind forced induction is an increase in volumetric efficiency. If you increase the efficiency you get more power. Sc's and turbos do the same thing, they just work in a variety of different ways. If you dont get any gains supercharging an m20 then there is something wrong with the setup.
This link quotes a Supercharged 330i @ 0-60 manual at 5.0 secs. Thats big in my book, not quite M3 but who cares its a very nice improvement ??? (325 is 0-60 5.7)
Click:
http://www.esstuning.com/
![[driving]](/images/smilies/icon_smile_driving.gif "Driving [driving]")
Click:
http://www.esstuning.com/
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