503-hp Audi A1 clubsport quattro hits 62 mph in 3.7 secs
.The Audi A1 clubsport quattro also features 6-piston calipers grab perforated carbon fiber-ceramic discs up front, large steel discs mounted on the rear axle and a coilover suspension that features adjustable compression and rebound damping.
The Audi A1 clubsport quattro is available to Need for Speed World players as a free in-game rental car from June 1 – 4 ( http://world.needforspeed.com ).
Hit the jump for the high-res gallery and the press release
Press Release :
Audi at “Wörthersee Tour 2011″
Audi presents the A1 clubsport quattro showcar at the Wörthersee New adhesive film decals in accessories program for the A1 family Experience the Audi A1 clubsport quattro at world.needforspeed.comIt gives the impression of having just emerged from the shop, freshly painted, on its way to the first rollout on the race track. The Audi A1 clubsport quattro is a one-off vehicle built to the limits of technology for breathtaking dynamics. Audi is presenting the showcar in Reifnitz, in the Austrian state of Kärnten, at the Wörtherseetour 2011. The 30th edition of this major meeting for Audi, Seat, Skoda and VW fans takes place from June 1 – 4, 2011.
The heart of the Audi A1 clubsport quattro is a classic Audi gasoline engine – a five-cylinder unit displacing 2.5 liters with turbocharging and direct fuel injection. Compared with the version used in the Audi TT RS and RS 3 Sportback on which it is based, the output of the TFSI has been increased dramatically to 370 kW (503 hp) and 660 Nm (486.79 lb-ft) of torque. Maximum power is available between 2,500 and 5,300 rpm.
The turbocharger, intercooler, admission tract and the exhaust line have been systematically tuned for high performance. As on the Audi A4 DTM, the tailpipe is located on the left flank, just in front of the rear wheel.
Another area where the A1 clubsport quattro shines is its overall weight of just 1,390 kilograms (3,064 lb). The powerful engine catapults the car from 0 to 100 km/h (62.14 mph) in 3.7 seconds. From 0 to 200 km/h (124.27 mph) takes just 10.9 seconds, while the car goes from 80 to 120 km/h (49.71 to 74.56 mph) in fourth gear in just 2.4 seconds.
A six-speed manual transmission and quattro permanent all-wheel drive, both taken from the TT RS and enhanced, deliver the power to all four wheels. Top speed is governed at 250 km/h (155.34 mph).
How To Hone A Cylinder - News

Known as the Audi A1 clubsport quattro, power for the one-off hatch comes from a 2.5 liters TFSI turbocharged 5-cylinder engine making 503-hp with a maximum torque of 486 lb-ft. Maximum power is available between 2500 and 5300 rpm.

It acts on the engine, brakes, steering, suspension and gearbox to allow drivers to hone the car's responses to the conditions. Coupled with a six-speed manual, the drive experience is sharp and sporty and there are plenty of electronic aids thrown in
Cylinder Bore Honing – Engine Building Video – Hone Piston Wall ...
@ericg83z this clip is only a sample from the full length DVD where we advise you to pull apart the engine first and then do a visual and measurement inspection.
You’ll need to see the condition of the piston skirts and the cylinder bore walls. Then you’ll need to do the measurement (or have the machine shop do it for you) with a dial-bore gauge and micrometer on the pistons. It the pistons measure out ok, and the cylinder walls are within spec, you may be able to get away with just a hone…
@BoxWrench Choose your machine shop carefully. One place I went to that had been highly recommended was absolutely dreadful (I walked out in disgust) It seemed that when I went there it was Ford Pinto week and there was a grease monkey stripping down engines with an air wrench and throwing all the parts into skips. Pick-N-Mix conrods for instance. Don’t they know that these are weight matched in sets of four even on budget price vehicles? Absolutely dismal.
@whitefoxx52 If its a cheap common head try a car dismantlers or eBay. If its rare and expensive get it welded. You don’t say whether it is cast iron or aluminium and you don’t say if its air cooled or water cooled. Minor cracks might succumb to K Seal a liquid coolant additive although this is really just a case of buying time. Good luck.
@fast05f7 They didn’t use deck plates at the car factory oh no! Instead there was a gigantic “transfer machine” [tools out, unclamp, load bars forward, clamp, tools in, tools out] The machine had about twelve workstations and all the cylinders were bored at one go. The noise and power was amazing, for instance there was a 3″ diameter “ring main” air supply and a fog of cutting oil mist so the area wasn’t really suitable for humans. Ah those were the days.
@madisonelectronic It depends on the factory and the skill of the toolsetters. In a good factory the in-process gauges and after-gauges should weed-out rejects instantly. Having said that I once saw an assembler fit a main bearing shell on top of a piece of swarf that was in the oilway. Couldn’t stop the line or the zombie and I wasn’t his foreman anyway. Hopefully it would have blown up during Hot Test, the 20 minute run before the engine was fitted to the car. Avoiding strikes was #1.
Nice but Mickey Mouse compared to what gets used at the car factory where the machines are built to produce MILLIONS of engines. The other thing to consider is the engines application and heat load. When I was young an “expert” in the motorbike club bored his Enfield too tight. OK it hummed like a turbine but at the first big hill it started to seize! Air cooled engines need more clearance. Marine engines run at high power for long periods so again more clearance is needed.
How To Hone A Cylinder - Bookshelf
Shop manual for automotive brake systems
Excessive honing destroys the master cylinder. A brush hone is made of abrasive modules attached to flexible nylon cords. The flexible cords are, in turn, ...Automotive chassis, brakes, suspension, and steering
Cylinder body Figure 6.46 With piston stops, a wheel cylinder has to be unbolted from the backing plate so the pistons can be removed before honing, ...Techone, Automotive Brakes
A rigid hone has three or four abrasive stones to refinish a cylinder bore. 2. ... The hone or the cylinder, or both, could be damaged. 6. Hone the bore for ...Multicylinder Test Sequences for evaluating automotive engine oils
7.2.4.2 Honing Equipment A Sunnen CK-I0 (Appendix A.4I) single spindle honing machine is to be used to hone the cylinder walls. ...Multicylinder Test Sequences for Evaluating Automotive Engine Oils, Part 1: Sequence 11D
7.2.4.2 Honing Equipment A Sunnen CK-10 (Appendix A.42) single spindle honing machine is to be used to hone the cylinder walls. The CK-10 must be equipped ...Everyday Knowledge Directory
How to Hone a Cylinder | eHow.com
Honing a cylinder sounds complicated at first, leading many people to take their engine blocks to professionals for a simple hone. ...
How to Hone a Cylinder Wall | eHow.com
How to Hone a Cylinder Wall. If you are restoring the engine block on your car, it is necessary to hone the cylinder walls to get rid of the glassy coating, or after ...
Dan's Motorcycle "Honing Your Cylinder"
If the cylinder is within specification and you are only going to put in a new set of rings, you must hone the cylinder to break the glaze. ...
YouTube - cylinder honing class
4:24Add toAdded to queue Deglazing a cylinder Part 1by CrowOfHellsing38,662 views. 2:48Add toAdded to queue How To Use a Flex-Hone Toolby GrantMethePower53,605 views ...
Engine Cylinder Bore Honing
After honing, the cylinders need to be cleaned remove residual ... Flex honing a cylinder bore greatly improves its finish. Brushing after honing not only ...