mick43 Posted March 10, 2009 Share Posted March 10, 2009 I wasn't a 100% happy with my Zed handling when pushing hard, including fast bends at intersections on motorways. Car didn't feel 100% planted. Plus on one occassion I had to brake on fast motorway bend/exit and traction engaged on front wheel. So, after reading good advice/suggestions for similar experience on forum I went and had a full 4 wheel laser alignment (track, camber, tow etc). The initial report showed the rear to be a long way out. They corrected this, but with a couple of rear measures just out of tolerance - reason given was that the front tyres have slight uneven wear on inside. Within 0.5 mile of their premises there's a big slow roundabout - and the rear traction came on at ~30 mph !! went straight back, they blamed computer error (got upset due to big error on original settings ). Another guy then re-set everything, test drove it and ok. I then gave it a spirited drive over fast B-road in evening. Car feels ok (not sure if better until I compare like-for-like bend)... pulls out of corners well, being over aggressive on purpose easily lights up traction light as I would expect. BUT during transition of lifting to brake for bend, quite late braking on safe open piece of road, with the smallest amount of turn-in (ie. car not always perfectly straight due to curvature of road) traction control comes in on front wheel(s) !! Is this expected behaviour of the traction control ? or would you expect from your experience for it not to be so sensitive ? Rear tyres are new, front tyres 50% worn, with slight feather on inside of both. Sorry for long post and realise this is really something you need to see and feel. But just wanted an idea of how sensitive traction control is on a well set-up car ?? eg. yep they all do that that's why I run with traction off with no issues (when driving within reason) or traction should only be coming on front wheels if driving very poorly or you have something seriously wrong with geometry. Thanks Quote Link to comment Share on other sites More sharing options...
Greekman Posted March 10, 2009 Share Posted March 10, 2009 Never had any issues with mine....tried it on track days as well and managed to go quite fast with ESP on...i could slide towards the exit of the corner (all 4 wheels) with minimal kicking in from it... Changed prof from 45 to 40 and ESP feels a bit better as well..... i believe being gentle with the throttle is essential tho.... otherwise can't comment.... Quote Link to comment Share on other sites More sharing options...
srobrien Posted March 10, 2009 Share Posted March 10, 2009 What rubber have you got on each corner....its recommended that you stick to the same tyres all round and keep them all pretty much equal in tread depth. Your car will not handle correctly otherwise. HTH R Quote Link to comment Share on other sites More sharing options...
adammitch69 Posted March 10, 2009 Share Posted March 10, 2009 I am having problems with mine (as per my recent posts) - front keep braking at corners that arent that severe and at low speed. As per people's reply it might be tyres, I have new Falkens on rear and part worn Bridgestones on the front. But the next thing on my list is to get it alligned properly as clipped a kerb a few months back at a decent speed :-( ...so did the alignment help at all? I have slight feathering on my front tyres too. Adam Quote Link to comment Share on other sites More sharing options...
mick43 Posted March 10, 2009 Author Share Posted March 10, 2009 thanks for replies I have T1Rs all round. New at back ~40% worn on front, but with slight inside feathering. I really don't know yet if alignment has made much difference... I need to go out and test on same piece of road in the dry as before. It's been really wet where I am so haven't really got a reference point for local back roads (either wet, covered in grease and grime etc). Greekman - I agree if gentle on throttle then I can actually get gentle slide with ESP coming a little and keeping under control. But transition from throttle to braking is same problem as Adam - but I am pushing it quite hard (in safe environment) - not a problem if normal/fast use - but again this is relative so hard to tell. I'm certainly no where near track speed.... this would def cause an issue, but then again track surface is much better than local roads, plus warm tyres etc so less slip likely... I'll have a play at weekend and report back if generally ok then I'll wait until I replace fronts, have aligned again and take it from there. Quote Link to comment Share on other sites More sharing options...
matth76 Posted March 11, 2009 Share Posted March 11, 2009 The TR1's are known to have quite soft side walls compared to the oem Bridgestones or Michelins. Prob try them next. But sounds like you must have a problem with something else too as well as the tyres. I've gone round bends very fast and it handles like rails (Im on stock bridgestones which some don't like but are actually very good compared to some cheaper makes). My tc has never kicked in apart from occasionally when I pull out from a junction near my work but my last car just wheel spun on the same junction so at least I know the tc is doing its job when needed. Sounds like you have a camber or alignment problem. Try taking it to another garage to check it. Quote Link to comment Share on other sites More sharing options...
Pimm Posted March 11, 2009 Share Posted March 11, 2009 Have a look at the link below !! Tyres are a pain in the **** http://www.350z-uk.com/forum/viewtopic ... highlight= Quote Link to comment Share on other sites More sharing options...
bronzee Posted March 11, 2009 Share Posted March 11, 2009 For the first year or so when I still had the stock Potenza's Slip light would come on a few times a day easily in Winter especially. When I swapped back over to my favoured GS-D3's and now running on Yokohama V103 Sport's, it's extremely rare that the Slip light comes on, even in the wet when giving it a bit. Tyres make a huge difference. Quote Link to comment Share on other sites More sharing options...
Pimm Posted March 11, 2009 Share Posted March 11, 2009 For the first year or so when I still had the stock Potenza's Slip light would come on a few times a day easily in Winter especially. When I swapped back over to my favoured GS-D3's and now running on Yokohama V103 Sport's, it's extremely rare that the Slip light comes on, even in the wet when giving it a bit. Tyres make a huge difference. This must be a wind-up its late and i need to go to bed... no more tyres OK Quote Link to comment Share on other sites More sharing options...
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