Darren Posted June 19, 2003 Share Posted June 19, 2003 While WOT testing on a private test track Tuesday night my car changed down from 4th to 3rd @ just under 160 leptons. :eek: I was trying for 180+ on the clock but this curtailed the fun. My passenger and I nearly shat ourselves and I initially thought I'd blown the thing to pieces but it was only noisy cos it was redlining in third! I must admit it does hold in third forever and ever and ever...I think someone else had this problem but want to know if they had any joy sorting it?? Cos I really need to sort mine. Help! Darren Link to comment Share on other sites More sharing options...
Nathan Posted June 19, 2003 Share Posted June 19, 2003 The problem is 100% whoever the fool was who did the speed delimit. This is exactly what the VVT-i's do if the wrong de-limiter is fitted or fitted incorrectly. I can offer you a correct de-limiter for self-fitment, or we can also fit it for you if required. PM me for prices if interested. Regards, Nathan TDI PLC Link to comment Share on other sites More sharing options...
roboldham Posted June 19, 2003 Share Posted June 19, 2003 Mine does the same, even after the personal Pete Betts treatment. Still think it's the delimiter / conversion? R Link to comment Share on other sites More sharing options...
Nathan Posted June 19, 2003 Share Posted June 19, 2003 Yep. We had a car here that was doing exactly what Darren describes. We ripped off all the crap that had been fitted and used an HKS de-limiter. Car is now perfect. HOWEVER, We have another tiptronic here at the moment (big single- mmmm) which again the customer complained of not shifting up into 4th when on WOT @ 150mph and although we've fitted an HKS unit to this one it's still playing up. So, we suspect either the speedo convertor or something else is still amiss. So, in short, I'm not saying Pete has done anything wrong at all, it may just be that something else on the car is making his SLD play up. Bottom line is that it's deffo the SLD/speedo conversion. Regards, Nathan TDI PLC Link to comment Share on other sites More sharing options...
400BHP Posted June 19, 2003 Share Posted June 19, 2003 Is there a limiter on the UK car? I have had mine at 160 (private road of course). Link to comment Share on other sites More sharing options...
Nathan Posted June 19, 2003 Share Posted June 19, 2003 Yes, at 155 genuine mph. You probably weren't far off it. However, removing the TRAC fuse not only disables the 155 limit but also renders the traction control inoperable which is no bad thing IMO. Regards, Nathan TDI PLC Link to comment Share on other sites More sharing options...
400BHP Posted June 19, 2003 Share Posted June 19, 2003 If i remember correctly from my college days, all speedometers are up to 10% out on the less side.... Link to comment Share on other sites More sharing options...
Nathan Posted June 19, 2003 Share Posted June 19, 2003 Do some searches on past threads regarding this and you'll find that the Mk4 speedo is about as good as they get on the actual/indicated mph scale (when used with stock wheels/tyres) I personally reckon you were about 5mph short of the limit. Regards, Nathan TDI PLC Link to comment Share on other sites More sharing options...
roboldham Posted June 19, 2003 Share Posted June 19, 2003 I've had mine at 187 indicated, just not WOT, but a fraction off. You learn to live with it just be more subtle - still max boost etc., and I think it's a "feature" rather than a problem. But am willing to be proven wrong :-) R Link to comment Share on other sites More sharing options...
Thorin Posted June 19, 2003 Share Posted June 19, 2003 at approximately an indicated 163mph I was actually doing 153. Link to comment Share on other sites More sharing options...
toyotasuprauk Posted June 19, 2003 Share Posted June 19, 2003 What does WOT mean? Link to comment Share on other sites More sharing options...
Simon Posted June 19, 2003 Share Posted June 19, 2003 Originally posted by toyotasuprauk What does WOT mean? Way Over the Top on a public road. No seriously, Wide Open Throttle. Link to comment Share on other sites More sharing options...
Darren Posted June 20, 2003 Author Share Posted June 20, 2003 Originally posted by roboldham I've had mine at 187 indicated, just not WOT, but a fraction off. You learn to live with it just be more subtle - still max boost etc., and I think it's a "feature" rather than a problem. But am willing to be proven wrong :-) R My speedo only goes to 180! No markings at all past that point. Rob does your speedo go higher? Nathan, Thanks for you input. I think my car was SVA prepared at the same place as Robs so that makes some sense. Link to comment Share on other sites More sharing options...
Adam W Posted June 20, 2003 Share Posted June 20, 2003 Originally posted by Darren My speedo only goes to 180! You don't hear people complain about that very often, only round here Link to comment Share on other sites More sharing options...
roboldham Posted June 20, 2003 Share Posted June 20, 2003 Lol. No, my markings stop at 180, but there are various little pointers like the corner of the mph sticker, a mark on the plastic in the front etc. that can be lined up with the needle at the time and extrapolated when you have time later - assuming linear response, but then it's only a smidge over really. Overclocking engineers trick that! I seem to remember my dad telling me similar stories when testing jet engines at Rolls Royce - only those things are measured by how long the flames get, once you go off the scale. R Link to comment Share on other sites More sharing options...
JohnK Posted June 20, 2003 Share Posted June 20, 2003 you have time to look at little dots and stickers at 187mph! Link to comment Share on other sites More sharing options...
roboldham Posted June 20, 2003 Share Posted June 20, 2003 Originally posted by JohnK you have time to look at little dots and stickers at 187mph! If I have entered the zone and acheived a higher state of conciousness Smell grass, Know nature not speeding; Leave footprint R Link to comment Share on other sites More sharing options...
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