rob wild Posted February 20, 2004 Share Posted February 20, 2004 I was hoping that somebody could help. I’ve have a twin turbo RZ auto and was warned before buying it, that the it could be a bit tail happy!!! What an under statement!!! (Great Fun Though!) What are the best ways of stopping the embarrassing situation of the car spinning around 180 when you floor it any where between 30 – 50 mph (I have never floored it in the wet at these speed yet!). I'm currently run 255/17" Yokohama tyres on the back Sorry for all the questions but also does anybody know of any good supra mechanics in the northwest for changing cam belts etc! Cheers Guys Link to comment Share on other sites More sharing options...
dude Posted February 20, 2004 Share Posted February 20, 2004 Racelogic Traction Control (RLTC) prob the best mod you will carry out , do a search and see !!!! Dude:flame Dev Link to comment Share on other sites More sharing options...
Dragonball Posted February 20, 2004 Share Posted February 20, 2004 http://www.mkivsupra.net/vbb/showthread.php?s=&threadid=16727 Link to comment Share on other sites More sharing options...
Matt Harwood Posted February 20, 2004 Share Posted February 20, 2004 Just in case Pauls answer didn't give enough of a detailed explanation, RLTC monitors the wheelspeeds of the front and rear wheels. When it detects a percantage of wheelspin, (User adjustable), it begins to cut the fuel injectors. The result gives you the ability to pretty much floor it coming off a roundabout in the rain! It's an awesome bit of kit, not at all fun destroying like some traction control systems. Needs to be experienced. I'm sure someone on here must be near you, that could give you a demo ride... Link to comment Share on other sites More sharing options...
Nick Posted February 20, 2004 Share Posted February 20, 2004 What are the best ways of stopping the embarrassing situation of the car spinning around 180 when you floor it any where between 30 – 50 mph (I have never floored it in the wet at these speed yet!).[/b] Have you checked your tyre pressures? Could understand if it was wet but in the dry....? Link to comment Share on other sites More sharing options...
Matt Harwood Posted February 20, 2004 Share Posted February 20, 2004 Crap Jap tyres? Link to comment Share on other sites More sharing options...
Tom Posted February 20, 2004 Share Posted February 20, 2004 Regarding people spinning in TT supes, it seems to me that its only the auto owners that spin out in the wet, or is it just as easy to be caught out in the manual? Link to comment Share on other sites More sharing options...
Matt Harwood Posted February 20, 2004 Share Posted February 20, 2004 Just as easy, although maybe easier to control... Link to comment Share on other sites More sharing options...
Nick Posted February 20, 2004 Share Posted February 20, 2004 I had a auto targa before I bought the manual. It was the the first auto car I'd owned and I didn't like it, had a few moments in the wet to say the least! I prefer the manual, much nicer to drive IMO Link to comment Share on other sites More sharing options...
Tom Posted February 20, 2004 Share Posted February 20, 2004 Originally posted by Nick I had a auto targa before I bought the manual. It was the the first auto car I'd owned and I didn't like it, had a few moments in the wet to say the least! I prefer the manual, much nicer to drive IMO Nick, These moments you had in the auto, were they from you under normal driving or pushing the car at all? I ask as do you have the same sort of moments in the manual in the wet? At the fleet meet Scooter took me out for a quick drive, and he was really chucking the car about more so than I do with my mini, or any car i've been in, and the car loved it, it just stuck to the road,it was in dry conditions but im trying to understand why the car would spin out so easy in the wet if it handles so well in the dry. Link to comment Share on other sites More sharing options...
Steve Cargill Posted February 20, 2004 Share Posted February 20, 2004 Originally posted by TDRAPER but im trying to understand why the car would spin out so easy in the wet if it handles so well in the dry. On cold damp mornings with cold tyres and pulling out at junctions the back end often steps out. In straight lines when dry I only lose traction at the top of 1st, sometimes in second but only on a bad surface. I'd guess it's to do with the torque converter. When you squeeze it a little the revs climb and the torque converter does it's work and I'd guess you get a quicker rise than in a manual where the revs and torque rise slower. Just my thoughts, my be total b0ll0x. Link to comment Share on other sites More sharing options...
Guest Chewy Posted February 20, 2004 Share Posted February 20, 2004 On cold damp mornings with cold tyres and pulling out at junctions the back end often steps out. this happened to me, but the road was dry. clipped the kerb just (wheels were kerbless) i'd only had the supra for over a week. I wasn't even pushig hard. mine is an auto. But the tyres are japanese, will be changing very soon. I'm seriously considering the group buy scheme. Link to comment Share on other sites More sharing options...
Justin Posted February 20, 2004 Share Posted February 20, 2004 Get used to the car before you start flooring it at roundabouts in the wet mate The only time I floor it usually is on a track or in the dry with warm tyres. But DON'T do it on a bend!!! You'll get a feel for what you can get away with over time. Take it on a track day then you can quickly learn the limits of the tyres, the brakes, the box and yourself The stock traction control will help you a tiny bit if only by means of the flashing green light saying you are about to get into real trouble if you don't adjust your throttle input sharpish I had an MR2 before and that was sooooooo tail happy. The Supe handles like a dream to me. However: I have heard magical things about RLTC so if you can afford it do it. I can't so I drive accordingly. Good luck dude. Link to comment Share on other sites More sharing options...
Steve Cargill Posted February 20, 2004 Share Posted February 20, 2004 Originally posted by Chewy But the tyres are japanese, will be changing very soon. Sorry to hear about you wheel. They other thing to watchout for is gently accelerating through 50-60 on wet bends. There seems to be a surge in torque resulting in a 'lively' back end. When I had Yokohama AVS (new UK tyres) they were atrocious when cold, the F1 GSD-3's I've got on now are much better. I think the Bridgestone SO2 and SO3's are equally rated. Spend a little time with the Search button, this has been discussed a lot before I think. Link to comment Share on other sites More sharing options...
Steve Cargill Posted February 20, 2004 Share Posted February 20, 2004 Originally posted by Justin However: I have heard magical things about RLTC so if you can afford it do it. I can't so I drive accordingly. But don't forget, it can only help - it can't change the laws of physice good though it it. You do not become invincible with it. Link to comment Share on other sites More sharing options...
Paul Posted February 20, 2004 Share Posted February 20, 2004 Hi mate, I've used Goodyear F1's since I had my Supra. Well worth the dosh and give good grip in all conditions, I've only got standard traction control (UK Version?) and maybe I don't push it to the same limits others do but wouldn't say it was 'tail happy'. Even with good tyres they can bite back, just a matter of getting used to the car. Just got a new set of F1's.....don't you just love that tread pattern Paul Link to comment Share on other sites More sharing options...
Nick Posted February 20, 2004 Share Posted February 20, 2004 TDRAPER - It was the kick down that would catch me out, I'd give it a bit of gas coming off a roundabout and it would drop down and send me flying. Either that or I'd give it a bit of gas in a straight line and again, kick down, spin, back end all over the place. I'm not blaming the car, it was my inexperience with auto's that's the reason, sure you get used to it with time. From memory the rear tyres weren't all that good either. I just didn't like it, call me a control freak but a manual is a lot more predictable, when the back goes it's a lot easier to control IMO, haven't got to worry about what gear you're going to be in in 2 seconds time.... Link to comment Share on other sites More sharing options...
Scooter Posted February 20, 2004 Share Posted February 20, 2004 Originally posted by TDRAPER im trying to understand why the car would spin out so easy in the wet if it handles so well in the dry. Tom even the NA is a different kettle of fish in the wet, i think in the end it just comes down to what your asking your tyres to do..........say your going around a roundabout at 30mph, in the dry the tyre is well within its grip limits and can handle it being asked to provide plenty of forward driving grip along with the lateral grip. In the wet the grip being used to keep you going around the corner is a higher % of the total grip available than in the dry and hence it cannot provide the same level of driving grip as before and you find yourself breaking traction at lower throttle. I know the sup can corner quickly in the wet but you have to be gentle in your power delivery coming out of the corner. A stock TT will wheel spin in the wet in a straight line given some stick so its not surprising things can get interesting mid corner! I've never had it but i can see the attraction of RLTC in the wet as i expect it means you can relax a little. BTW Quality rear tyres are a must and can transform a previously ‘lively’ car IMO Link to comment Share on other sites More sharing options...
Steve Cargill Posted February 20, 2004 Share Posted February 20, 2004 Originally posted by Scooter BTW Quality rear tyres are a must and can transform a previously ‘lively’ car IMO Not just rears. Changing just the fronts reputidly makes a big difference. Theory being they shift so much water the rears run on an almost dry road. Link to comment Share on other sites More sharing options...
dude Posted February 20, 2004 Share Posted February 20, 2004 Nick is right on this one , the manual is a lot easier to drive in the wet the trade off is the Auto is a LOT easier to launch off the line and nicer in traffic !! you pays your money and takes your choice (mines an auto and Hi-stall !! ) Dude:flame Dev Link to comment Share on other sites More sharing options...
Terminator Posted February 20, 2004 Share Posted February 20, 2004 Originally posted by Steve Cargill When I had Yokohama AVS (new UK tyres) they were atrocious when cold, the F1 GSD-3's I've got on now are much better. I think the Bridgestone SO2 and SO3's are equally rated. My MKIV auto came with Yoko's and they were the worst tyre I have ever had when cold. Take it easy for a while, you need to get used to the feel of the car, which takes a little longer in the auto. Stay off turbo two unless you are straight for now. I am not certain but I thought LSD was an option on the RZ in 95. So you my have a standard diff, which may contribute to your experience when combined with duff tyres. I have tried all the same tyres as Steve and more and the f1's are a match for the SO2's and 3's IMHO You might try using manual mode so you are in control of the change points. Link to comment Share on other sites More sharing options...
SkyJawa Posted February 21, 2004 Share Posted February 21, 2004 I never have a prob with the auto box, though I do have RLTC. To be honest, I think the problems lie with when it changes gear, as you could be mid bend when it does and that can create some interesting moments. The RLTC works wonders for this. However, if I'm pushing on then I shove it in manual mode so you have far more control and it only changes when you want it to, this again also helps with catching the back end. Good tyres helps for sure, I put F1's on and its much better! Link to comment Share on other sites More sharing options...
rob wild Posted February 21, 2004 Author Share Posted February 21, 2004 Thanks for all the advise, from reading other people experiences etc, I think it may be combination of things, the auto box, tyres and the traction control system. What seems to happen say at 40mph on a straight road in the dry,(i.e. today) is that the auto box puts it into first gear and there is a massive surge of power and straight away the back end starts stepping out, then the traction control kicks in which seems to cut the power all together which makes it worse because you can’t steer the car on the power and back end just breaks away! I think i may invest in the rltc and some different tyres Thanks a lot. Link to comment Share on other sites More sharing options...
Nick Posted February 21, 2004 Share Posted February 21, 2004 As far as the standard traction control goes you're best off switching it off everytime you drive as it's as much use as tits on fish. The RLTC is a very system though:) Link to comment Share on other sites More sharing options...
Lewis Posted February 21, 2004 Share Posted February 21, 2004 Is anyone aware of a current group-buy in progress on the racelogic traction control? Purchased my new supra today and the drive home was like a dogs tail wagging from side to side - was great fun but over ilkley moor (a f'ing great hill with cliffs) probably not the best way to do it. Thanks Link to comment Share on other sites More sharing options...
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