B8 Ko4 owners follow up thread

[lettuce]

Big Turbo A5

http://www.audizine.com/forum/showth...EFR-6758-Build

Finally! Man, that's awesome. Been getting so discouraged by the BT posts on here lately. This restores my hope in our platform.

[Zach L]

Finally! Man, that's awesome. Been getting so discouraged by the BT posts on here lately. This restores my hope in our platform.

As expected, that horsepower required the Bosch GM Ecotec injectors, an upgraded Autotech HPFP, and even then he's running a multi-port water/meth system with a custom controller. Everything continues pointing to the fueling system (and the tuning to support the upgraded components) as being the major single obstacle to overcome on this platform. I think think we can get 370-420 awhp from the factory system max. I don't think it was mentioned in that thread, so I inquired about who did the tuning.

That said, the experience from builds like that A5 and other VW TSI engine builds is starting to provide some real clarity on what works. That's a good thing!

[AllroadCorbin]

As expected, that horsepower required the Bosch GM Ecotec injectors, an upgraded Autotech HPFP, and even then he's running a multi-port water/meth system with a custom controller. Everything continues pointing to the fueling system (and the tuning to support the upgraded components) as being the major single obstacle to overcome on this platform. I think think we can get 370-420 awhp from the factory system max. I don't think it was mentioned in that thread, so I inquired about who did the tuning.

That said, the experience from builds like that A5 and other VW TSI engine builds is starting to provide some real clarity on what works. That's a good thing!

420whp on the stock fueling is a pipe dream on the B8 2.0


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[Zach L]

420whp on the stock fueling is a pipe dream on the B8 2.0


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Just for clarity, I'm talking about with a true big turbo; not a K04. Initially, yeah it's a pipe dream even with the bigger turbo, but with time I think it'll happen.

That's how it happened for the Mk6 TSI. There were GTI making more than 370whp on stock fueling about 6 years ago. Then over the years with tuning revisions, 420whp on stock fueling hardware. That's with 93 octane and no water/meth. That's been the case for more than 2 years now.

The B8 stock fueling system is just as capable as the Mk6 GTI. Our current problem is there's not enough people pushing the limits, and now that the aftermarket injectors are becoming more common I assume people on our B8 platform will just jump to using those rather than really pushing the factory fueling system to its true limit.