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    • 2016 B9 A5 to drop 200 pounds - Twin turbo 4.0 TFSI V8 for the RS5?

      Car and Driver is reporting that that the next generation B9 A5 expected to bow in at a 2016 model year car next year will drop 200 pounds thanks to extensive use of aluminum. That is not really news and pretty much expected as Audi is aggressively cutting weight across the entire lineup. What is interesting to note is that Car and Driver reports the RS5 will get a 4.0 liter twin turbo V8 powerplant to challenge the Mercedes C63 AMG and BMW M4.

      If that is the case both Mercedes and Audi will have 4.0 liter V8's in their sport coupes while BMW will offer the smallest displacement at 3.0 liters and two less cylinders. As the latest comparison test featuring the RS5 versus the C63 showed the RS5 4.2 liter naturally aspirated V8 is simply outmatched in grunt by Mercedes and BMW.

      What will output be? Considering this motor should be a variant a 4.0 TFSI seen in the S6, S7, S8, RS6, RS7, etc., power ranging from 420 horsepower 560 horsepower Audi can pick and choose which flavor of the 4.0 TFSI they want to use based on what Mercedes does with the M177 4.0 liter twin turbo in the C63.

      The advantage the RS5 will offer is all wheel drive (no 4Matic all wheel drive for the C63) as well as dual clutch and manual options. The C63 will again offer an automatic so the only dual clutch rival in the segment is BMW.

      If this information is all correct, the RS5 may be the winner of the next generation battle.




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      This article was originally published in forum thread: 2016 B9 A5 to drop 200 pounds - Twin turbo 4.0 TFSI V8 for the RS5? started by Sticky View original post
      Comments 29 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by leveraged sellout Click here to enlarge
        Still no want...Audi doesn't seem to understand the concepts of balance and feel from what I've seen. The Top Gear test of the current RS 5 is all you need to see. It's appalling. I will admit I haven't been in one yet but I can't imagine it would be any different than any other Audi - numb, capable, slightly boring. The M3/4 will be lighter, more fun, more interesting...the RS 5/RS 4 are heavy as unholy hell for how small they are...and they aren't exactly tuned for throttle-steering despite all the asymmetric quattro BS.

        Also, I think the bigger thing is that VAG sees it fit to use the same engine in everything from an A4 to the CGT. That's a huge statement to make. They aren't interested in a smaller displacement, more bespoke engine for the smaller S/RS models at all, it seems.
        The BMW will likely be the most interesting and entertaining of the bunch. So, pretty much the same as always.
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        They won't give it the RS6/RS7 turbos or else there is no reason to buy an RS6/RS7.

        I'd say the S8 turbos simply because those are smaller. This car will need around 500 horsepower as that is what Benz is packing. So, the S8 is the most logical choice I think.
        My understanding is that the S8 & RS6/7 turbos are the same or, if not, very similar. There is only a 40whp delta between these cars on 100 octane which, I'd guess based on previous RS models, is due to more aggressive cams and headwork.
      1. Stevenh's Avatar
        Stevenh -
        Here is a useful little graphic comparing dynos of the various 4.0tt's. I've read that the RS6/7 received a few extra tricks that had not been incorporated into the S8 tune which came out first. Since updating the S8 tune it is even closer to the RS6/7 numbers.

        Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        My understanding is that the S8 & RS6/7 turbos are the same or, if not, very similar. There is only a 40whp delta between these cars on 100 octane which, I'd guess based on previous RS models, is due to more aggressive cams and headwork.
        I e-mailed Audi asking for a detailed explanation and they said they would give it to me but I never heard back :/

        I haven't heard of the heads or cams being different I think it's a difference in the turbochargers themselves but I do not know. I wish we had a complete breakdown.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        Here is a useful little graphic comparing dynos of the various 4.0tt's. I've read that the RS6/7 received a few extra tricks that had not been incorporated into the S8 tune which came out first. Since updating the S8 tune it is even closer to the RS6/7 numbers.

        http://www.bimmerboost.com/images/im...icompare-1.png
        Where did you originally find this?
      1. chrisisnapping's Avatar
        chrisisnapping -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Was at Audi today.
        information gathering or looking to purchase?


        Audi is really stepping their game up lately. Glad to see they're putting out engines that come with a lot of power from the factory with plenty of tuning head room left. Just a matter of time before the rest of their s/rs line up gets mod treatment like the tt-rs has gotten. hopefully BIG numbers are on the horizon.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
        information gathering or looking to purchase?
        My uncle is looking to buy something so I tagged along.

        Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
        Audi is really stepping their game up lately.
        Agreed. They're really stepping it up.
      1. Xtabi's Avatar
        Xtabi -
        Can't wait to see this thing!
      1. mark0006's Avatar
        mark0006 -
        Finally a turbo engine for the RS5.