« Reply #17 on: 14 May 2018, 14:33 »
I wouldn't want to be driving around torque or avoiding certain conditions just because of the clutch. If my car was remapped I'd want to just get in and drive and enjoy what I'd paid for so if that means a replacement clutch then that's what I'd be replacing first.
Unfortunately it's not just the clutch that wears if you let the engine pull from low revs in a high gear with higher boost than standard. This type driving will kill the clutch in a standard R never mind a modified one but once extra boost is dialled in it puts wear on a lot more components in the drivetrain.
The high boost at around 2000rpm in an ED40/R or about 1500rpm in a GTI when modified isn't good for the drivetrain as a whole so you do really need to drive around this a little when modified. I've had modified turbo cars from various mappers since the late 90's and it's around the initial peak boost that you get the problems.
DSG cars will snick down a gear or two so they can get around this, it's programmed in from VW. DSG cars do get clutch slip too, just less of it and the DSG can be mapped to increase clamping force.
It's a shame that the best part of a remapped engine - that low down torque in high gears - can't be used too often in a modified ED40/R manual without an upgraded clutch. Or the most useable feature of a remapped engine should I say. To some the higher peak power is the be all and end all.
Smoothness is the key, no sudden snapping open of the accelerator at peak boost, just build it smoothly.
Keep in mind the turbo and crank are things that spin, and things that spin like to increase speed progressively!
I ran the JB1 on my R (manual) for about a year, maybe a bit longer (albeit low mileage) and didn't suffer any clutch slip.

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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