Skip to main content

All about Audi Engines

The all new B9 generation of the Audi S4/S5 is going to hit the market very soon. Compared to the last generation (B8), besides enhancements to the platform/body structure, one major change is decommission of the firm’s aging supercharged V6, which is replaced by a brand new turbocharged V6.

This new V6 is fundamentally different than its predecessor (the supercharged V6). Audi has not reveal too much detail about this new engine, however we are able to extract some useful technical information from a recent officially published video. Below are some brief analysis.
Major Changes and Highlights

Reverse flow header (which makes using twin-scroll turbocharger possible)
Integrated exhaust manifold into the header
Cast-in iron cylinder liner (not Alusil in the old supercharged V6)
Direct injection system changed to spray-guided type (Audi has been using air-guided type previously)
Single turbocharger with twin-scroll design
Introduced Miller cycle (a.k.a Atkinson cycle) in its operation
Air-to-air intercooler
Modified version to be used in 2017 Porsche Panamera V6 trim

Cylinder Block

The below image indicates the new turbo V6 is still using the closed-deck design, same as the previous supercharged V6:

The turbocharged V6’s cylinder block

One major change is the cylinder sleeve. On the new V6, Audi is using cast iron cylinder sleeve, totally different than the old supercharged V6, which is using the Alusil layer. The indication here is: if you have experienced excessive engine oil consumption on the B8 S4/S5, you probably should not worry this on the all-new B9 S4/S5.

Due to the lightweight design principle, the new V6 only weights at 172 kg, a significant decrease from the predecessor’s 189 kg.

Due to the V6’s 90-degree bank angle, it will naturally require uneven firing, Audi uses offset split crank pins to correct this. The 90-degree geometry also brings in unbalanced vibrations, so that is the reason why you can see in Audi’s design, an extra balance shaft is added on top of the crankshaft, as shown in the below illustration.

Crankshaft and also the balance shaft
Reverse Flow Header

This can be considered the biggest innovation in this V6 engine, and it is also the first (and only) modern turbo V6 that uses the reverse flow design.

Here Reverse Flow means the exhaust manifold is on top, and the intake is on the side. The reason that Audi chooses such scheme is in order to adopt the twin-scroll turbocharger for the V6 engine, without complex pipping and routing.

The single turbocharger sits between the V-bank

Such design also minimizes the path length that exhaust gases need to travel to reach the turbocharger, which means better throttle response and less lag.

Bore pitch/spacing: 93 mm
Displacement: 2,995 cc
354 hp, 369 lb-ft (500 Nm) @ 1,300-4,500 RPM

Pic Courtesy : Swati


  1. Thanks for sharing the post. It is really informative blog related to the audi dealer san antonio who provides the test driving services to their clients.


Post a Comment

Popular posts from this blog

The Most awaited Yamaha YZF-R15 Version 3.0

Yamaha has officially unveiled the R15 Version 3.0 in Indonesia. The all-new 2017 R15 is powered by a 155.1cc engine, which develops maximum power of 19.04 Bhp @ 10000 rpm and maximum torque of 14.7 NM @ 8500 rpm. The engine is mated to a 6-speed gearbox, and the key rivals of R15 V3.0 are 2017 Honda CBR150R and Suzuki GSX-R150. As of now, Yamaha has not announced anything officially regarding the launch of R15 V3 in India, it is expected to be here within next 3-4 months .

Yamaha YZF-R15 Version 3.0 is expected to be launched in 2017 but as of now there are no official launch dates. So, we will have to wait a bit more before the official statement comes in. It is expected to be priced between Rs. 1.30-Rs. 1.35 lakhs (ex-showroom). It is expected to share its design elements from M-Slaz, Yamaha YZF R125 and YZF R6.

ENGINE, POWER & TORQUEDisplacement155.1 ccMaximum Power19.04 Bhp @ 10000 rpmMaximum Torque14.7 NM @ 8500 rpmEngine DescriptionLiquid-cooled, 4-stroke, SOHC, 4-valveCoolin…

Old very cute and small cars

Mini Cooper oldest:

Datsun 1971 240z 


1992 Ducati Sports car:

Austin Mini club 1971 Vintage cars 

Simca :

Do you know about the Rich girl of Dubai Lana Rose and its Mo Vlogs with Monthly 42 Million Viewers

Lana was born October 6, 1990 in Dubai, United Arab Emirates. This twenty five years old  girl has a nice smile , Although she appears on her brother’s channel focusing around luxury cars and super sports, Lana’s own hobbies are quite different. Mohamed who is  currently living in Dubai with his sister Lana and his mom. they Daily uploads
Dubai Vlogs which are watched by millions of people their channel which has reached over 1.4 Million subscribers and is growing monthly by 180k thousand subscribers. reaching with his luxury lifestyle videos 42 Million views monthly.  

In her Videos she is presenting you the most luxury places, cars, shopping centers and even on of the greats Water-Park in Dubai .

 They do lot of activities which  you can do in Dubai with your family. There videos just express the daily luxurious life of the them which they used to upload on you tube
. The most videos which are popular are seems to be related with sport scar where she himself drives and her brother…