The Audi A4 (B7) RS4 Avant 4.2 FSI V8 Quattro has a V 8, Petrol engine with 4163 cm3 / 254 cu-in capacity. How many horsepower (hp) does a 2006 Audi A4 (B7) RS4 Avant 4.2 FSI V8 Quattro have? The 2006 Audi A4 (B7) RS4 Avant 4.2 FSI V8 Quattro has 420 PS / 414 bhp / 309 kW. Re: S4 4.2 vs. RS6 4.2. Completely different engine. Slap to Hybrid K04's on a V8 and thats your recipe for 450hp. You could slap turbos on an S4 the probably is not making it fit but adequete cooling. The difference is that the RS6 has forged pistons stronger rods, its 5 valves per cylinder not 4. New on the S4 is a supercharged 3-litre V6 developing a whopping 333bhp. This replaces the 4.2-litre naturally aspirated job in the previous S4. Audi chose supercharging over a turbocharger for instant throttle response from slow-as-idling revs, and give the engine the feel of a large-displacement, naturally aspirated car. As the first car from Audi to use a V8 engine, also was the first Audi to combine a quattro system with an automatic transmission. Early cars used 3.6-litre V8s, while later cars featured a 4.2-litre version of the engine. The Audi V8 was replaced by the Audi A8 in 1994, although the A8 was not marketed in North America until 1996. In fact, Car Complaints stated, “We don’t have a lot of complaints on file for the Audi S4 — feel free to add yours here. It’s either not very popular … or it’s very, very good.”. The No. 1 problem the Audi S4 has is for the 2005 model where owners hear a rattling sound when first cranking the engine. This is because Audi used Audi S4, 2007, Red, 4163, petrol, automatic, 2, Convertible, 97000miles, 4.2 Tiptronic quattro 2dr, Motobarn Of Harrogate presents to You This Audi S4 Fitted With a Beautifully Sounding 4.2 Naturally Aspirated V8 Engine With a 6 Speed Automatic Transmission, Just Into Stock And Ready For A New Keeper This 2000 audi s4 engine diagram : wiring harnes 2000 audi s42carpros wiring serpentine S4 stalling [diagram] 2015 audi s5 engine diagram full version hd quality engine. 2005 audi s4 engine cover (rear). 4.2 liter. 4.2 liter, a4/s4. w/o rs43.0t belt routing diagram 2000 audi s4 engine diagram : wiring harnes 2000 audi s4Cover engine rear s4 audi VEHICLE TYPE: front-engine, 4-wheel-drive, 5-passenger, 4-door sedan or 5-door wagon ESTIMATED BASE PRICE: $45,000 ENGINE TYPE: DOHC 40-valve V-8, aluminum block and heads, Bosch Motronic engine I have been unable to find data on the 1.8T 20V or the 2.4 / 2.8 30V engines, I will try getting it direct from Audi UK. Audi 4.2 V8 40V-----200kgs / 441lbs 5 days ago · See pricing for the Used 2004 Audi S4 Quattro Sedan 4D. Get KBB Fair Purchase Price, MSRP, and dealer invoice price for the 2004 Audi S4 Quattro Sedan 4D. Engine. V8, 4.2 Liter. Horsepower HMdploU.