« Reply #19 on: 23 September 2023, 21:25 »
It might be EA888 V4, as per the Polo GTI+, with Audi valve lift tech and Budack cycle running, haven't tgat output. If that's the case, you have both DI and port fuelling (no coking up) and the Budack cycle gives impressive fuel economy on motorway runs - my GTI+ would do 47mpg doing 80mph on the motorway, and 54mpg maintaining 70mph.
How does the S3 compare to that economy now you’ve got a few miles on it MH?

Logged
‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten