B8 S4 Info
06-05-2008, 03:57 PM
#5
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No kidding...
This one's rich:
"5) Not long before BM use a supercharger?? Well, i'm afraid that's pure speculation. The reason BM are using twin turbo's (as i'm sure you know) is to eradicate turbo lag, something which no doubt Audi will have to be very careful with re their new supercharged unit."
Heh, really, dude? The fool would be wise to keep his mouth shut, lest he open it and remove all doubt.
"5) Not long before BM use a supercharger?? Well, i'm afraid that's pure speculation. The reason BM are using twin turbo's (as i'm sure you know) is to eradicate turbo lag, something which no doubt Audi will have to be very careful with re their new supercharged unit."
Heh, really, dude? The fool would be wise to keep his mouth shut, lest he open it and remove all doubt.
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06-05-2008, 04:36 PM
#8
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Well, I anticipate it will be a clutch-driven setup, like MBZ's blown motors
so that it is less parasitic on the highway and gentle cruising, keeping MPG up. Though, it didn't seem to even be noticeable in the C32 AMG (also a supercharged V6).
The sad thing, though, is that this engine's HP output is only 1 more than that AMG motor that came out in 2002! On the other hand, the Audi motor is supposed to have 400 ft-lbs of torque, and I imagine that will be a pretty flat curve since it's being artificially limited. The C32 only had about 332 ft-lbs if memory serves me right.
C32s can be put in the low 12s with some simple modding (tune, intake, pulleys, exhaust). If this new S4 can make low 12s, or *gasp* 11s, I don't think we'll see too many people complaining... except about blowing up the transmission.
The sad thing, though, is that this engine's HP output is only 1 more than that AMG motor that came out in 2002! On the other hand, the Audi motor is supposed to have 400 ft-lbs of torque, and I imagine that will be a pretty flat curve since it's being artificially limited. The C32 only had about 332 ft-lbs if memory serves me right.
C32s can be put in the low 12s with some simple modding (tune, intake, pulleys, exhaust). If this new S4 can make low 12s, or *gasp* 11s, I don't think we'll see too many people complaining... except about blowing up the transmission.
06-09-2008, 09:04 AM
#9
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Roots blower?
The article mentions that it is a "Roots" blower. I wonder if this is the case, as the traditional roots blower is old technology...a "screw type" is a newer and more efficient design. I'll leave it to you to Google the various designs, but I hope they use a "screw" type (i.e. Lysholm)
Link provided.<ul><li><a href="http://www.automotivearticles.com/123/Superchargers_Compressor_Design_and_Choices_.shtml ">Roots vs Lysholm (screw)</a></li></ul>
Link provided.<ul><li><a href="http://www.automotivearticles.com/123/Superchargers_Compressor_Design_and_Choices_.shtml ">Roots vs Lysholm (screw)</a></li></ul>
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