« Reply #27 on: 04 August 2010, 05:12 »
I had noticed an occasional 'holding back' briefly on my car particularly when accelerating from 2000ish rpm in the higher gears. I'd put this down to running the 98RON map and sometimes only being able to fill with 97RON super. I just sort of hoped it was just the ECU trying to decide what quality of fuel was actually coming through before allowing the car to run normally.
But just over a couple of weeks ago I had to drive to Gatwick Airport from Deepest Devon to fly out on holiday. 180 plus miles each way via the A30 A303, M3, M25 and M23. A very mixed bunch of roads, from single carriageway 40mph zones to variable M25 speed limits and everything in between. So basically the car was up and down the gearbox a fair bit and accellerating and decellerating quite often. No racing or silly speeds, 4 up in a fully laden car.
I noticed this surging quite a bit on and off, mostly coming out of roundabouts on the A303, accellerating onto dual carriageway sections to get past frigging caravans.
My car is just a Stage 1 REVO spec with no added air intakes, exhausts or anything else.
On the flip side, I put 70 quid of fuel in to travel up and managed to get back on the same tank a fortnight later, 360 odd miles fully loaded. My mk5 which was also remapped would never have done that without a top up on the way back.


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‘25 8.5R, ‘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