VIW28 29 Posted March 2, 2013 Report Share Posted March 2, 2013 Got run in period completed yesterday on my new built BDE 24v turbo engine and gave it a little boost but am suffering some severe clutch slip when the boost really comes in. I'm using a Spec stage 3+ clutch and aluminium flywheel with an 02M DRP 'box and AEM tru boost to control the boost pressure. Software wise I'm a using United Motorsport 870cc ProMaf file.After doing some Googling for similar problems in other setups I see The Phirm worked at Kieran's Rotrex R32 and seemed to have similar issues? These issues seem to have been resolved by use of shims somewhere? Possibly behind slave cylinder? The pedal in the car feels only what I could describe as "lumpy" and doesn't feel as if it completely engages when pushed to the floor...I never really thought much on that until now as I put it down to using mk4 setup in mk3 but it kinda ties in with the other symptoms.I also need to cut down the boost pressure for now as I think it was getting too much, need to swap out the spring in the wastegate from 15psi to around 8psi and take it another run to see how it performs but I don't think it's going to make much difference.I've seen on Vortex Nothing Leaves Stock do shims for this - http://forums.vwvortex.com/showthread.php?5699170-NLS-02M-clutch-shim-kit-now-for-sale!&highlight=SpecCan anyone throw any light on this? Link to post Share on other sites
michael5556 247 Posted March 2, 2013 Report Share Posted March 2, 2013 Where is your biting point? Is it close too the floor? Does it only slip when the boost comes in? Link to post Share on other sites
craggsy 91 Posted March 2, 2013 Report Share Posted March 2, 2013 I've heard a few people going on about spec 3 clutches slipping, most just replace.Sorry cant be anymore help Link to post Share on other sites
VIW28 29 Posted March 2, 2013 Author Report Share Posted March 2, 2013 Where is your biting point? Is it close too the floor? Does it only slip when the boost comes in?Biting point is quite high and yea only when boost comes in. Need o try control the boost a bit better first to try get a better idea of what's going on. I've heard a few people going on about spec 3 clutches slipping' date=' most just replace.Sorry cant be anymore help[/quote']Thing is Craig, clutches are a bloody minefield...there is so much inconclusive information and contradicting reports out there, no matter what brand it is. I did research these before I purchased and found a lot of guys that had good things to say about them. I thought Helix was the Daddy this side of the pond until I saw one blow itself through the bell housing of a Rotrex R32 I was working on Link to post Share on other sites
craggsy 91 Posted March 2, 2013 Report Share Posted March 2, 2013 That is true Gethin Link to post Share on other sites
VR6Pete 1,455 Posted March 2, 2013 Report Share Posted March 2, 2013 Think that's the same for any product in all markets Link to post Share on other sites
craggsy 91 Posted March 2, 2013 Report Share Posted March 2, 2013 When I ruin my clutch ill be aiming at a clutch masters fx850 next Link to post Share on other sites
VIW28 29 Posted March 2, 2013 Author Report Share Posted March 2, 2013 Yeah I think you're right Craig, that's what I would go for as there seems to be next to no negative reports regarding them. So does anyone know or have heard or seen anything about shimming the slave cylinder? Link to post Share on other sites
VR6Pete 1,455 Posted March 2, 2013 Report Share Posted March 2, 2013 Anything with a name crotch master fx850 must be good Link to post Share on other sites
VIW28 29 Posted March 2, 2013 Author Report Share Posted March 2, 2013 Croch master??? What are you watching on TV right now?? Lol Link to post Share on other sites
michael5556 247 Posted March 2, 2013 Report Share Posted March 2, 2013 I don't think shimming the slave cylinder would help you in this instance. I think it's just the clutch. Link to post Share on other sites
VIW28 29 Posted March 2, 2013 Author Report Share Posted March 2, 2013 I'll let you see what I mean by the pedal feel next weekend Michael then you might see my reason for thinking Link to post Share on other sites
Daverse 175 Posted March 2, 2013 Report Share Posted March 2, 2013 Crotch!! Ahahaha Link to post Share on other sites
matty.vrt 120 Posted March 2, 2013 Report Share Posted March 2, 2013 Did you fit a new salve its recommended on these boxes Link to post Share on other sites
VR6Pete 1,455 Posted March 2, 2013 Report Share Posted March 2, 2013 Haha, just realised my photo auto corrected clutch to crotch!! You honestly don't want to know what I've been searching for on my mobile in the past to correct that lmfao. Link to post Share on other sites
matty.vrt 120 Posted March 3, 2013 Report Share Posted March 3, 2013 If you end up replacing I recommend helix 5 paddle I've put 600bhp through mine no slippages. Link to post Share on other sites
VIW28 29 Posted March 3, 2013 Author Report Share Posted March 3, 2013 Yes new slave cylinder... in fact the whole box has been rebuilt with all new shims etc and built by VW technician who has the specialist transmission qualifications. I would have agreed with you on Helix setup but that Rotrex one I referred to plus another friend with a 3.6T had issues too so that put me right off. Saying that I had a 4 paddle helix in the 12v setup and it was great.I have something else to try first before anything else as recommended by very knowledgeable and experienced tuner from around these parts... Link to post Share on other sites
michael5556 247 Posted March 3, 2013 Report Share Posted March 3, 2013 Well keep me updated. See you next weekend. Link to post Share on other sites
VIW28 29 Posted March 3, 2013 Author Report Share Posted March 3, 2013 Will do buddy, thanks Link to post Share on other sites
MaidenVR6 26 Posted April 19, 2013 Report Share Posted April 19, 2013 There is a big thread about the NLS 02M shim kit on Vortex. Seems like alot of customers are happy with the result. Link to post Share on other sites
VIW28 29 Posted April 21, 2013 Author Report Share Posted April 21, 2013 Matt from UM reckons he knows exactly what's wrong, just have to test the theory first...seems like pressure plate isn't fully releasing so might have a couple of mm machined off the mounting face of the flywheel to compensate if this is proved to be the case. Link to post Share on other sites
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