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  1. #1
    nick-barnes07's Avatar
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    looking at buying an a3 2.0t fsi quattro, what the difference from an s3

    Hi all, i have been thinking of buying a a3 s line quattro on a 06 plate, just wondering what the difference is between that and the s3, obviously apart from styling and interior, brakes, do they both run the same engine and internals??? i would be getting a s3 recaro interior and s3 bumpers for it, mtm bimottos and a gt35r kit when funds would allow and a bigger set of brakes ,

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  3. #2
    liam's Avatar
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    Same base engine, but the A3 has a smaller turbo and slightly different internals.

    I'll dig up some press blurb for you...
    Last edited by liam; 16th March 2009 at 01:59.
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  4. #3
    liam's Avatar
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    Like I said, this is press blurb, so there's not a lot of solid technical detail, but...

    TFSI in its most powerful form

    The power plant of the S3 delivers all that is expected of a powerful sports engine, and does so supremely well. The 2.0 TFSI, developed by AUDI AG, combines direct injection and turbocharger technology and delivers 195 kW (265 bhp) at 6,000 rpm. And at just 2,500 rpm it already musters up an impressive 350 Nm of torque this pulling power remains constant up to 5,000 rpm. In the combined driving cycle the 2.0 TFSI displays another welcome character trait, consuming just 9.1 litres of fuel over 100 km further proof of the forward-looking efficiency of TFSI technology developed by Audi.

    Compared with the A3, this engine is an advanced version featuring fundamental changes. The new turbocharger with its enlarged turbine and compressor rotor generates 1.2 bar of boost pressure an unusually high figure. A modified intercooler significantly lowers the temperature of the compressed air, thus increasing the air mass that is necessary for combustion.

    The new high-performance TFSI engine features pistons with stronger pins, while strengthened connecting rods with new bearings transmit the powerful forces to the crankshaft. The cylinder block has been reinforced, and the head is made of a new, highly heat-resistant alloy.

    The exhaust camshaft timing has been adjusted to accommodate the increased power output. High-pressure injectors with an enlarged cross-section squirt the fuel straight into the combustion chamber.

    For all its progressive technology, the high-performance turbo engine tips the scales at just 152 kilograms, less than comparable engines of direct competitors with a positive impact on the axle load distribution.

    To go with its sporty nature and firm handling, the new Audi S3 has a six-speed, close-ratio manual gearbox. Gearshift travel has been reduced for the S3, permitting even sportier and more precise gear changes. As is the case for all Audi S models, the new S3 drives all four wheels by means of quattro permanent four-wheel drive. An electronically controlled hydraulic multi-plate clutch, positioned at the rear for the benefit of weight balance, distributes the torque as needed delivering plenty of grip and maximum driving safety. All the drivetrain components have been strengthened to cope with the high level of engine torque.
    This text is taken from the original 8P S3 release in August 2006. AFAIK there have been no dramatic changes to engine spec with the recent facelift.
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  5. #4
    V6Pete's Avatar
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    That sums it up well. Even if you were to replace the turbo and intercooler later, you'd get up to S3 power, but the engine won't have the strong internals, so has more chance of going bang.

    Similar to the differences between the 150/180 and 225bhp 1.8T engines.
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