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The mkiv Supra Owners Club

Calling the Single Boys and Traction


suprafan72
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I had to show a porsche who was boss the other day while going up a slip road onto the A47. He was up my ass so although it was raining I eased the throttle on, got the light back effect and the blatting noise of RLTC cutting injectors and backed off the throttle until grip came back. This was at 90mph in 4th gear :blink:

 

Thing is, the more astute amongst you will notice "eased the throttle on" and "backed off the throttle" in there. I treat RLTC as an early warning system that shows you where the grip limits are, I emphatically do not just nail the accelerator to the floor and let god sort it out. That to me is where you would be asking for trouble.

 

-Ian

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I treat RLTC as an early warning system that shows you where the grip limits are, I emphatically do not just nail the accelerator to the floor and let god sort it out. That to me is where you would be asking for trouble.

 

-Ian

 

And that is the point, RLTC should only be used as a failsafe, but unfortunately people don't view it this way - you then learn to rely on it and that's when something happens. There have been single cars crashed with RLTC.

 

I have had RLTC and the debate has been done to death, some wouldnt be without and some wouldnt be with - there is no arguement that it is a fantastic traction control system, but it's the fact that people learn to rely on it that causes problems.

 

It is a warning system :)

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And that is the point, RLTC should only be used as a failsafe, but unfortunately people don't view it this way - you then learn to rely on it and that's when something happens. There have been single cars crashed with RLTC.

 

I have had RLTC and the debate has been done to death, some wouldnt be without and some wouldnt be with - there is no arguement that it is a fantastic traction control system, but it's the fact that people learn to rely on it that causes problems.

 

It is a warning system :)

 

 

Agreed 100 per cent.. What happens if u think you have RTLC on and it fails?? its electronic thinks fail and u still end up in a fence???

 

To me learning you car, not being stupid and driving with some sense is the key..

 

With me i will only go in boost in the bone dry, not the damp or the wet!!!

 

Its a matter of common sense.

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Guest Nicholas

IMHO I think RLTC is a good thing for people that need a safety net, I however much prefer knowing that it's me controlling what my car does, no matter what the road conditions are like. :)

 

I do also think it's probably the best traction control system around for the supra so if you feel it's necessary for you to get the best out of the car go for it!

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your choice. I think its a mistake. Have the RLTC there for wet and damp days as a safety measure, it has an OFF setting if you dont want it for the dry days.

 

You will scare the hell out of yourself with a single turbo in the damp...you will try to overtake a truck using what you think is just the right amount of throttle and suddenly you bump a cats eye, rear goes light, engine revs go up and you find the supra fits under the truck quite nicely. Why wouldnt you want that safety measure?

 

JB

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Guest Nicholas
your choice. I think its a mistake. Have the RLTC there for wet and damp days as a safety measure, it has an OFF setting if you dont want it for the dry days.

 

You will scare the hell out of yourself with a single turbo in the damp...you will try to overtake a truck using what you think is just the right amount of throttle and suddenly you bump a cats eye, rear goes light, engine revs go up and you find the supra fits under the truck quite nicely. Why wouldnt you want that safety measure?

 

JB

 

JB, I agree it's a handy safety measure if you don't know how to handle a single turbo car in the wet, what would happen if the RLTC failed? as I stated before I personally prefer to know that I am controlling the car and not relying on an electronic gizmo :)

 

I would very much like to drive a single car equipped with RLTC in the wet though so I could compare.

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I treat RLTC as an early warning system that shows you where the grip limits are, I emphatically do not just nail the accelerator to the floor and let god sort it out. That to me is where you would be asking for trouble.

 

-Ian

 

You gaylord! :p

 

In all seriousness though I'm in full agreement with Ian here. I used to swear by RLTC (and still do. It's an amazing bit of kit that hasn't failed me yet) but I can drive in such a way as to 'beat' it, for want of better wording.

 

I now treat it like Ian does. As an early warning system. If it's cutting in it because it has reason to and that reason is usually me pressing the loud pedal too hard.

 

 

BTW Ian, you didn't say whether you'd done enough to keep the Porsche behind you.

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You gaylord! :p

 

In all seriousness though I'm in full agreement with Ian here. I used to swear by RLTC (and still do. It's an amazing bit of kit that hasn't failed me yet) but I can drive in such a way as to 'beat' it, for want of better wording.

 

I now treat it like Ian does. As an early warning system. If it's cutting in it because it has reason to and that reason is usually me pressing the loud pedal too hard.

 

You gaylords! :p

 

Real men don't need traction control etc. etc. :D

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your choice. I think its a mistake. Have the RLTC there for wet and damp days as a safety measure, it has an OFF setting if you dont want it for the dry days.

 

You will scare the hell out of yourself with a single turbo in the damp...you will try to overtake a truck using what you think is just the right amount of throttle and suddenly you bump a cats eye, rear goes light, engine revs go up and you find the supra fits under the truck quite nicely. Why wouldnt you want that safety measure?

 

JB

 

I agree with what you are saying... I tend to be very over cautious in the wet and dont really want to go there.

 

To be honest with the amount of power i have at the moment and will potentially have it would be sucide to attempt anything in the wet.. I can drive sufficicently in the wet off boost....

 

Yes theres no doubt RTLC is the ultimate in safety..

 

I was once in an RTLC Mr2 turbo and it was still scary in the wet..

 

I've just got my new Goodyear F1's all round and its certainly improved things in the dry allot and feels a damn site better ride..

 

Theres no right or wrong answer to this as this could go on forever...

 

Personally i wouldnt want to be gunning it in the wet anyway... Its not you at fault its normally the other road user.

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JB, I agree it's a handy safety measure if you don't know how to handle a single turbo car in the wet, what would happen if the RLTC failed? as I stated before I personally prefer to know that I am controlling the car and not relying on an electronic gizmo :)

 

I would very much like to drive a single car equipped with RLTC in the wet though so I could compare.

 

 

From what Ash Tells me mate, your a mad bad ass with your new turbo LOL!!!

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BTW Ian, you didn't say whether you'd done enough to keep the Porsche behind you.

 

I smoked him so much he tucked back into the left hand lane without overtaking a damn thing and skulked there at 70mph pretending he never even tried :rlol: Even when I slowed back down he kept away from me hahaha

 

-Ian

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Is it a given that upping the power means having to go with bigger, wider wheels/tyres?

 

Thats generally the case, just look at other powerful RWD cars. They dont fit 355s on Lambos purely for the looks.

 

Soft compount tyres will help a lot in dry weather conditions but in the rain anything with big power is going to be a handful, and sticky tyres wont help at all here.

 

TC isnt a failsafe... and I think thats its biggest problem, people fit it thinking they're invunerable to having an accident.

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JB, I agree it's a handy safety measure if you don't know how to handle a single turbo car in the wet,

 

Thanks very much ;) I'll see you on the handling circuit at TOTB then lol

 

what would happen if the RLTC failed? as I stated before I personally prefer to know that I am controlling the car and not relying on an electronic gizmo :)

 

If you stick your foot down in a big power Supra in the wet or the dry and are not ready for it to lose traction and step the back end out then you are going to end up in trouble. I'm always ready for it to go wibbly woo, when overtaking in the wet I always tiptoe around, hell even in the dry I can't recall the last time I used anywhere near WOT to overtake on an A road. I just don't think you're getting the idea of RLTC at all, it's not a device that makes you homosexual in some fashion the moment you wire it up, it simply makes your big power car much MUCH more fun and relaxing to drive as long as you treat it as a safety measure and not a physics defying magic bullet.

 

Have you got ABS and an airbag still and do you wear your seatbelt ;)

 

I would very much like to drive a single car equipped with RLTC in the wet though so I could compare.

 

To be honest the RLTC car would take you apart. In the wet with 500+bhp you won't get grip until 5th gear so you'll be constantly going "accelerate - spin up - catch rear end - lift off" all the way through 1st, 2nd, 3rd, and 4th, until either a) you reach well over 100mph, b) you get sick of being dangerously all over the place and tiptoe up through the gears, or c) you stuff it into the armco. Meanwhile the RLTC equipped car found the correct acceleration speed at the safe edge of traction and stuck to it :shrug:

 

I drove mine for about 4 or 5 years without any traction control before getting RLTC after I found the single tubbie was just no fun until I got to 3rd gear. I got sick of easing off roundabouts in case it spun up in traffic. In a straight line in the dry in 2nd gear I must admit I do just plant it and listen to RLTC have an embolism sorting it all out :flame: Christ it's fast under those circumstances though :)

 

-Ian

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your choice. I think its a mistake. Have the RLTC there for wet and damp days as a safety measure, it has an OFF setting if you dont want it for the dry days.

 

You will scare the hell out of yourself with a single turbo in the damp...you will try to overtake a truck using what you think is just the right amount of throttle and suddenly you bump a cats eye, rear goes light, engine revs go up and you find the supra fits under the truck quite nicely. Why wouldnt you want that safety measure?

 

JB

 

Because I'm such a poof I have no idea if your RLTC works or not - and it's set to WET!

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Guest Nicholas
From what Ash Tells me mate, your a mad bad ass with your new turbo LOL!!!

 

it did take him a while to catch me on the way back from santa pod on sunday ;) you coming down to Dan's on wednesday mate??

 

Thanks very much ;) I'll see you on the handling circuit at TOTB then lol

 

 

Why not come to RAF marham and we can have a play ;)

 

 

If you stick your foot down in a big power Supra in the wet or the dry and are not ready for it to lose traction and step the back end out then you are going to end up in trouble. I'm always ready for it to go wibbly woo, when overtaking in the wet I always tiptoe around, hell even in the dry I can't recall the last time I used anywhere near WOT to overtake on an A road. I just don't think you're getting the idea of RLTC at all, it's not a device that makes you homosexual in some fashion the moment you wire it up, it simply makes your big power car much MUCH more fun and relaxing to drive as long as you treat it as a safety measure and not a physics defying magic bullet.

 

Have you got ABS and an airbag still and do you wear your seatbelt ;)

 

 

In no way did I say it made you homosexual I just don't see the point in it? yes ok it's safe but I bought my car to drive not be driven :)

 

 

 

To be honest the RLTC car would take you apart. In the wet with 500+bhp you won't get grip until 5th gear so you'll be constantly going "accelerate - spin up - catch rear end - lift off" all the way through 1st, 2nd, 3rd, and 4th, until either a) you reach well over 100mph, b) you get sick of being dangerously all over the place and tiptoe up through the gears, or c) you stuff it into the armco. Meanwhile the RLTC equipped car found the correct acceleration speed at the safe edge of traction and stuck to it :shrug:

 

I drove mine for about 4 or 5 years without any traction control before getting RLTC after I found the single tubbie was just no fun until I got to 3rd gear. I got sick of easing off roundabouts in case it spun up in traffic. In a straight line in the dry in 2nd gear I must admit I do just plant it and listen to RLTC have an embolism sorting it all out :flame: Christ it's fast under those circumstances though :)

 

-Ian

 

Sorry Ian but I beg to differ, I get plenty of grip in the wet through 3rd, 4th and 5th it only spins up if I really plant my foot. If I drive 3/4 throttle it's great and very useable.

 

If you really think RLTC is THAT good in the wet take me out as a passenger and show me? :)

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Alex, it stays mostly on wet anyway. If I am consiously going to push the car hard it gets turned to dry or 15% so if I get caught by surprise I can still get the car back.

 

For the mapping it might be an idea to run it up to 15% or 20% just to avoid it getting in the way.

 

JB

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Completly agree with Ian C - I cant wait to get mine back, some times its great but sometimes you dont want it....hence the off button.

 

Miami - very strange to get that much grip in the wet - i dont get any on boost (NOT WOT - just as boost comes on) till 5th

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Guest Nicholas

 

Miami - very strange to get that much grip in the wet - i dont get any on boost (NOT WOT - just as boost comes on) till 5th

 

Strange but anyone in the Leicester convoy on Sunday will confirm my grip under WOT :D

 

Ian, Pig what tyres/suspension do you have?

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Completly agree with Ian C - I cant wait to get mine back, some times its great but sometimes you dont want it....hence the off button.

 

Miami - very strange to get that much grip in the wet - i dont get any on boost (NOT WOT - just as boost comes on) till 5th

 

you without the supe jon

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What would be the ideal width tyre to have for maximum grip?

 

I think a 285 is the biggest you want to go...much wider and you risk appauling wet weather performance.

 

265 is good for standard road driving.

 

But that's all IMO, no proof.

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Alex, it stays mostly on wet anyway. If I am consiously going to push the car hard it gets turned to dry or 15% so if I get caught by surprise I can still get the car back.

 

For the mapping it might be an idea to run it up to 15% or 20% just to avoid it getting in the way.

 

JB

 

For mapping it must be off or it will make afr readings nonsense.

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Is it a given that upping the power means having to go with bigger, wider wheels/tyres?

 

Eyefi has a very quick Supra that he's still running on stock 17's. Although I believe he has really fine-tuned his RLTC to compensate.

 

Thats generally the case, just look at other powerful RWD cars. They dont fit 355s on Lambos purely for the looks.

 

But you could run a powerful single on 17s with well set up suspension, tyres and TC? Next time I see Eyefi I'll ask him how he does it.

 

it simply makes your big power car much MUCH more fun and relaxing to drive as long as you treat it as a safety measure and not a physics defying magic bullet.

 

Exactly. In the wet I'd be the one responsible for queues of traffic at roundabouts. When you have busy roundabouts that you literally have to dive onto RLTC is a godsend. No wheelspin and the car won't go sideways.

 

In a straight line in the dry in 2nd gear I must admit I do just plant it and listen to RLTC have an embolism sorting it all out.

-Ian

 

I did that tonight. Escort at a roundabout. Five Chavs inside it. He's giving revs so I switch RLTC to WET and boot it. RL sounds real good when you do that. Must be scary outside the car! Whatever, he 'owned' me by later driving past me and making his BOV go. He da man.

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you without the supe jon

 

I am yes - just having the new brake pads and lines fitted and the niggles sorted.

 

Havent had racelogic set up though since my build, hence why i need new tires already :)

 

Its the RLTC im looking forward to getting back, im hoping it will make the car much faster as i will get traction in 1st and 2nd... we shall see

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