All Things Mk5 > Mk5 General Area
TTRS clutch vs helix?
pudding:
--- Quote from: GVK on May 04, 2023, 07:49:35 pm ---@Pudding did you write the ad for AKS? :signLOL:
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Loving the sarcasm :grin:
It's almost like they uploaded a draft by mistake as it's not their usual style :grin:
pudding:
--- Quote from: FatWelshBoy on May 04, 2023, 11:03:27 pm ---I'm happy with my Helix and will fit another when needed. The pedal with the TTRS kit is only slightly heavier than standard so my biggest concern is how long will it last for those up around 400 ft/lbs? I'm no expert on clutches but my simple mind struggles to see how it can have significantly more clamping force and it's not transmitted to the pedals weight? It'll be interesting to see where the TTRS kit is in a couple of years time when they start having some decent mileage put on them.
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Well, this is the thing. No one has run one long term yet, but personally I never buy anything off the back of forum praise because people ALWAYS leave out context and negatives.
It can handle 400lbft with the TTRS friction disc. With a GTI friction disc? Who knows.
And you're right, there is no way you can gain +120lbft in torque capacity with no increase in pedal heft without some kind of next level pressure plate trickery, or a very sticky friction disc. I checked and the TTRS uses the same master and slave cylinders as the MK5, so there is no trick parts used there either.
I've read some reports of the clutch being very grabby and chattery initially, and then smooths out after 1000 miles bed in. That suggests to me Audi's friction material is indeed very sticky. The TTRS has 4WD load to deal with, and extra gross vehicle weight to haul off the line, so it needs to be grabby compared to a less demanding FWD car.
Anyway, if people are happy to blow £875 + fitting on an experimental setup, that's up to them!
breeze:
Friction materials are part of it too
colesey:
Afaik, the TTRS clutch kits have been popular in USA for over a decade so there should be plenty of data points to google. I personally would sooner have oem parts than aftermarket.
https://www.golfmk6.com/forums/index.php?threads/build-your-own-rsr-clutch-kit-parts-list.273966/
pudding:
Shame the TTRS gearbox input shaft is bigger as it would be nice to use the friction disc as well for a like for like setup. The length of the pressure plate springs and their fulcrum point are tuned to the lining material thickness, which is why Helix use their own disc rather than a GTI one. So by using a completely different disc with a TTRS pressure plate, it's hard to say what the pedal consistency is going to be like after 30,40,50K miles and beyond.
You can get the pressure plate and disc for around £400, oem. I'm surprised no one has come up with an adapter sleeve to facilitate fitment of the TTRS disc.
The Helix whilst old school and hefty, is designed specifically for the application so feels exactly OEM, just heavier.
Maybe retro fit the servo assisted clutch master cylinder from a Nissan Patrol :grin:
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