Best HP Options for a 2003 4.2 a6 - Normal??????

[PaulW]

Technical data Engine data Code letters ABZ AEW AHC AKG Capacity l 4.172 3.697 4.172 4.172 Output kW at rpm 220/6000 169/5500 250/6600 220/6000 Torque Nm at rpm 400/3300 315/2700 410/3500 400/3300 Bore øin mm 84.5 84.5 84.5 84.5 Stroke mm 93.0 82.4 93.0 93.0 Compression 10.8 10.6 11.3 10.8 RON/BON 98/88 recommended min. RON 95 95 98 95 Injection system Motronic Motronic Motronic Motronic Ignition Motronic Motronic Motronic Motronic Knock control yes yes yes yes Self-diagnosis yes yes yes yes Lambda control yes yes yes yes Catalytic converter yes yes yes yes Turbocharging no no no no Emission standard EU 2 EU 2 EU 2 D 3 Code letters ABZ AEW AHC AKG Valve timing with 1 mm valve lift and 0 mm valve play Inlet opens after TDC 10° 10° 7° 10° Inlet closes after BDC 40° 25° 46° 40° Exhaust opens before BDC 30.5° 30° 31° 30.5° Exhaust closes before TDC 2° 2° 2° 2° Code letters AKJ AKH Capacity l 3.696 4.172 Output kW at rpm 169/5500 250/6600 Torque Nm at rpm 315/2700 410/3500 Bore øin mm 84.5 84.5 Stroke mm 82.4 93.0 Compression 10.6 11.3 RON/BON 98/88 recommended min. RON 95 98 Injection system Motronic Motronic Ignition Motronic Motronic Knock control yes yes Self-diagnosis yes yes Lambda control yes yes Catalytic converter yes yes Turbocharging no no Emission standard D3 D3 Code letters AKJ AKH Valve timing with 1 mm valve lift and 0 mm valve play Inlet opens after TDC 10° 7° Inlet closes after BDC 25° 46° Exhaust opens before BDC 30° 31° Exhaust closes before TDC 2° 2°