No More B5 S4

...the difference wasn't that big. But from 91 to 100, HUGE difference.

DarinS4Turbo

Well, I see about the same timing curve on 93-94 octane. Never tried less than that.

s4what?

injectors would be way beyond maxed out, mixture way lean & egt's would get pretty hot. How long could the turbos take this?

DarinS4Turbo

Airflows peak in the 290's. You're right, the injectors are running 100% duty cycle, but if that's about 26g/sec of fuel, and let's say airflow peaks as high as even 300 g/sec, that is still 11.5:1 or plenty rich. Curious to hear your counterpoint though.

vegasS4

Not wht i meant did you take a vag tool and throttle adapt

DarinS4Turbo

Huh, are you s4what? Yeah I took a VAG tool and throttle adapted, why is that relevant?

s4what?

you are right - 11.5 A/F at 300 g/s MAF w/ 100% duty cycle. Question is - what EGT would you get for a sustained run? Maybe it's OK. I'd like to see EGT logged. I just don't know what the exact relationship between A/F & EGT is except that leaner is hotter.

greekS/4Tourer

Actually i think it means MORE OVERSPIIN' of those KO3 and unfavorable conditions

mariyan151

what is the data loging soft and interface you are using
pretty amazing