6SpeedOnline - Porsche Forum and Luxury Car Resource - 100-200kmh and 60-130mph modified vtg

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Quote:

Originally Posted by K24F (Post 4746499)

We mapped ourselves the tappering at top end in order to prevent the ECU pulling and achieved better results at long pulls, but 100-200 was 6'.
I had to make the choice between short and long pulls mapping.

Being a bit anxious with WMI especially methanol mixed and 102 octane gas being not available here I run for now E85 which provides also excellent knocking resistance and temperature control.

That's what I guessed: you tapered the boost down intentionally. E85 is not available here, so we had no choice. WMI would work with 98 as well. It is just not as maintenance free as picking up E85 at the pump.

E85 is "wonderfull", we mapped up to 27° angle at top end without any knock at 1.65Bar (and lowered to 24° for reliability).
EGT lowers as well about 100°C at top end vs pumpgas @1.25Bar.