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Title: A4 B6 1.8T BFB 163bhp K04-015 Post by: auamanu on February 12, 2015, 12:18:52 PM Hello,
i like to tune a A4 B6 1.8T (BFB) with returnless fuel system. I plan a K04-015 Turbo. Tuner sayes to me, the OEM injectors (BOSCH 028156065 with 282,2cc/min @3bar) are okay for this tune. But other tuner say´s this is to small. Which fuel pressure have a A4 B6 with returnless system? If i calculate with 4bar, i get with this injectors 352,75cc/min, it should be okay for 230bhp. More is not to get with a K04-015 or? Title: Re: A4 B6 1.8T BFB 163bhp K04-015 Post by: littco on February 13, 2015, 06:33:38 AM Hello, i like to tune a A4 B6 1.8T (BFB) with returnless fuel system. I plan a K04-015 Turbo. Tuner sayes to me, the OEM injectors (BOSCH 028156065 with 282,2cc/min @3bar) are okay for this tune. But other tuner say´s this is to small. Which fuel pressure have a A4 B6 with returnless system? If i calculate with 4bar, i get with this injectors 352,75cc/min, it should be okay for 230bhp. More is not to get with a K04-015 or? Its 4 bar static so if you run 1.5bar boost actual pressure in rail will be 2.5bar. Id say 2.5bar is on a good day as well, old filters and tired pumps youll end with lower. You'll want to run 380cc injectors, from the 225bhp s3/tt. Direct fit and will be plenty for you.. Title: Re: A4 B6 1.8T BFB 163bhp K04-015 Post by: stuklr on February 14, 2015, 08:48:47 AM Need at least 440cc. I am currently setting up my own k04-015 on my B6 and the stock returnless system needs as much injector as possible. I had the 225hp TT injectors and they went 100% duty cycle on 18psi with this K04.
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