




The ongoing debate between the supercharger camp and the turbo boys isn't likely to die along with large, fuel-thirsty performance engines. In fact, Eaton believes that the market for both power-boosters will continue to grow at an extremely fast pace along with the rising price of gas. Because manufacturers are looking to downsize their engines, power-adders like the supercharger are becoming increasingly necessary in order to deliver the kind of performance new car buyers have come to expect along with the low fuel consumption that is becoming increasingly necessary.
Unlike the high RPM power generally associated with heavily-boost turbocharged engines, superchargers produce added power at all engine speeds. The downside is that engine power is used to drive the compressor, which reduces the available power gains somewhat. In order to make up some of that lost power, Eaton is developing variable-speed superchargers, which will allow for good power from idle through redline with a reduced strain on the engine. For our part, we fully support the use of both turbochargers and superchargers on any and all new cars. Solely in the name of fuel economy, of course.

CAR sat down with a "high-placed Audi source" at the European launch of the Q5 and was able to pry out a few details about the automaker's future products.
To begin with, the next RS4 will use a retuned version of the supercharged, 3.0-liter V6 due to be fitted on the next S4. Audi's unnamed engineering mole said that the decision to go with the supercharged six was primarily to provide higher torque at lower RPMs. With the base engine putting out 290 hp and 310 lb.-ft. of torque, it's assumed that the tweaked version should crest the 350 hp mark and just under 400 lb.-ft. of torque. How that will play in the inevitable comparison test between the RS4's V8-powered competition remains to be seen.
The A1 is still set to debut in 2010, but despite its aim at MINI, Audi won't resort to retro styling. Based off the next Polo, the A1 will spawn several variants, including three- and five-door hatches, a convertible and an off-roader. While Audi has no plans to build anything smaller than the A1, it does plan to increase the size of the A3, along with offering a Q3 CUV inspired by the Cross Coupe Quattro concept.
And what of the R8? The V10 version is on its way this fall, but a turbocharged variant isn't in the cards, nor is the V12 TDI. And while Audi has continued to deny that it's working on an R4, CAR's source says that there's still room in the automaker's lineup for another R-badged vehicle.


Do you often wonder why putting your foot down while driving your Ford Expedition or Lincoln Navigator doesn't deliver the response for which you'd hoped? Well, that could be because you're driving an enormous beast of a vehicle saddled with an overburdened 5.4L V8 producing 300 horsepower. Well, Saleen now has the solution for more power that Ford has not been willing to offer.
The SpeeLab division of the American tuning house has announced the availability of its Series VI twin-screw supercharger for the current-model Ford Expedition and Lincoln Navigator. The forced inductor, already on duty in the Saleen S331 Sport Truck, provides an extra 100 horsepower and 100 lb-ft of torque in the SUV. The result? Substantial extra pulling power, for one, while acceleration is said to be vastly improved, dropping the 0-60 run into the sixes while improving 35 - 65 mph passing times by 30 percent, all the while making a negligible impact on fuel consumption.


Whenever a new performance vehicle makes it into the hands of eager customers, a run to the dyno never seems to be far behind. This has again proven to be the case with the new Dodge Challenger, as a company known as Speedfactory has just done the deed on its new steed. What sets this particular vehicle and its dyno numbers apart from other SRT8s, though, is its Vortech supercharger. Considering that the 6.1 liter HEMI V8 under the Challenger's long, scooped hood is the same one available these last few years in other SRT-branded eight-cylinder vehicles, we're not too surprised to see that the system is pretty mature and posts rather good horsepower and torque numbers right out of the gate.
Coming in at about 495 horses at the rear tires, Speedfactory surmises that its Challenger is making around six hundred ponies at the crank. If owners of the GT500 weren't concerned with the Challenger's performance numbers before, perhaps the addition of a supercharger to the HEMI will bring it more in line with the numbers coming from the Shelby's force-fed mill. Folks, it's muscle car time again, let the games begin!
