Clutch slipping

[Exonian]

Does anyone know whether the GTI/GTD/R run different clutches?

[monkeyhanger]

APR's map kicks in a lot more torque than Revo's linear map and that's what allegedly blew the turbo on APR's GTI. Funnily enough they've gone and released a new map with less torque low down in the revs.

I feared for my GTD clutch longevity when I had the TDI-tuning box on, the power delivery was so harsh when you put your foot down, the DTUK's delivery was very smooth and linear. I made full use of the extra 55ps and 125Nm for the 7 months I had the DTUK box, and now my dad is enjoying it (although his is a DSG, so a slightly different clutch set-up (can the DSG generally handle more or less power than the manual?).

It would definitely be good to know if the GTI, GTD and R share the same clutch. If so, I would have thought that a fault-free

[monkeyhanger]

APR's map kicks in a lot more torque than Revo's linear map and that's what allegedly blew the turbo on APR's GTI. Funnily enough they've gone and released a new map with less torque low down in the revs.

I feared for my GTD clutch longevity when I had the TDI-tuning box on, the power delivery was so harsh when you put your foot down, the DTUK's delivery was very smooth and linear. I made full use of the extra 55ps and 125Nm for the 7 months I had the DTUK box, and now my dad is enjoying it (although his is a DSG, so a slightly different clutch set-up (can the DSG generally handle more or less power than the manual?).

It would definitely be good to know if the GTI, GTD and R share the same clutch. If so, I would have thought that a fault-free GTI clutch could handle the extra power and torque that would put it around the region of stock R output (OK, a bit more torque).

If I were the OP, i'd be getting my car back to stock and see if you can cause the clutch to slip. If you can't replicate it at stock, the VW garage isn't going to see a defect and will be doing work for nowt if they do any at all after not being able to replicate the fault.

[monkeyhanger]

We haven’t considered the gearing differences between the GTI/R (assuming they are geared the same) and the GTD have we?

At 80mph in 6th the GTD is doing 2200rpm, what are the GTI and R doing in 6th at 80mph? I’m guessing somewhere in the region of 2700-2900, lets say it’s 2800 (until someone comes back with the correct figure), that’s 127% of the GTDs rpm, and assume same difference in every gear.

505Nm in a boxed GTD (240ps) is going to be pushing around the same rotational forces at the wheels as a GTI with 397Nm when that gearing change is taken into account.

The remapped GTIs we’re talking about here have upwards of 450Nm and 300ps. It would seem to me that if the standard clutch is adequate for an R with 380Nm and 300ps, but only has a small over-engineering tolerance, it should be fine for a GTD, but you’re pushing your luck with a GTI putting out similar ps to a stock R but with 18% more torque.

[remlapeel]

On my remapped GTI at 2200rpm the car is traveling at 63mph. I have a few videos recorded to check the clutch slip and at 2800rpm the car is at 74mph. I would estimate at 80mph the engine will be around 3000rpm. I am considering going back to stock to preserve my clutch. I cannot find a single aftermarket option at the moment.

[GrahamFR]

http://www.hstuning.com/product_info.php?products_id=3888

not exactly close tho... but proof there is life out there..  (X-Files Tune) 

[remlapeel]

Just been looking through the VW website and found this

Items where the lifetime of the component is or can be influenced by driving style and external factors will only be considered under the terms of the warranty for a period of six months or 6,500 miles (whichever is soonest).Beyond that limit, the defects must be classified as wear and tear and will not be covered by the Volkswagen warranty.

Components subject to wear and tear include, but are not limited to:

    Brake linings and disc pads
    Clutch release bearings
    Clutch pressure plates and centre plates
    Tyres
    Wiper blades (wiper rubbers have no warranty owing to their conditions of use)
    Seat and backrest covers
    Floor coverings
    Spark plugs
    Batteries for key fobs and alarms
    Light bulbs
    Shock Absorbers

6500miles is shocking cover for a clutch!

Also been to see MrClutch and been quoted £550 for a replacement clutch with a 20,000 or 2 year warranty. They are aware the car has been mapped and have said the standard clutch should hold fine

[GrahamFR]

If you're only staying stage 1 then I'd risk it and go Mr clutch.

Is the car battery covered on that list cos I think mines knackered as it barely ever goes into start stop anymore?

[remlapeel]

Yes Battery is covered :

8 Year High Voltage Battery Warranty

    A guarantee for eight years or 99,360 miles (160,000 km) whichever comes first, on all material or manufacturing defects.
    Gradual reduction in battery capacity over time is integral to the nature of the component, and does not represent a defect under the terms of this guarantee, as long as the reduction in capacity is not in excess of the value specified for this vehicle in the owner's manual.
    The guarantee on high voltage batteries does not apply if the defect has been caused by the battery not being used, handled or maintained as described in the owner's manual. This applies in particular to charging the battery.

[Exonian]

If you're only staying stage 1 then I'd risk it and go Mr clutch.

Is the car battery covered on that list cos I think mines knackered as it barely ever goes into start stop anymore?

Mine got replaced ok under warranty following the dealer testing it during the annual service