2014/15 A4 vs S3 engines, same size, widely different power outputs?

[B8_Ballroad]

What's the difference between the 2014 A4 B8 CAEB platform 2.0t at 220hp and the 2015 S3 8V CYFB platform 2.0t at 300hp? I have a 2014 B8.5 allroad and and I'm sitting here wondering what I can do to my 2.0t flex-fuel engine to get as much power out of a similarly sized engine that the S3 of a similar year comes with stock.

Ideally I'd like to keep the flex-fuel capability and just push a little more power out of the CAEB platform, but does the CYFB engine from the S3 have something that I could swap onto my CAEB engine to bring it up to the S3's numbers on gasoline, combining the benefits of E-85 and the S3's magical properties?

Can the transversal mounting really change that much between the two engines? Do they even use any common parts?

[Smac770]

If you have a flex fuel engine, you have a CPM engine, not a CAE engine. MY14, that would be the CPMB. CAE and CPM are both EA888 Gen2 engines. 8V uses EA888 Gen3. And the high power S3/TTS version has modifications compared to the others. This is discussed in SSP 920243 (google search should turn it up), at the end. Not sure why thy list the CNTA as longitudinal; that's incorrect.

A tune can be used to push the stock turbo harder, or you can replace the stock turbo with a K04 or other things. But if swapping in a CYFB was easy, you'd have found plenty of material on people doing it. And no Gen3 is flex fuel; Audi seemed to drop that concept after the Gen2 experiment. B8.5 elsewhere in the world had the Gen3 CNCD 2.0T engine, but was never in the US until the B9 arrived.