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The mkiv Supra Owners Club

Supra Handling and Grip!!!


Guest Stratt
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:D i modified a couple of touring cars, think the best was the sd1 rover of all things :blink::D

 

Rothmans Porsche 962 was by far my fastest car.

 

 

Stratt- get the Goodyears then drive it again, if it's still skittish then go to a specialist and have the dampers and bushes examined and check if anything has come undone.

 

People recomend RLTC but imo if it's needed then imo a driving style needs to be adjusted.

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Rothmans Porsche 962 was by far my fastest car.

 

 

Stratt- get the Goodyears then drive it again, if it's still skittish then go to a specialist and have the dampers and bushes examined and check if anything has come undone.

 

People recomend RLTC but imo if it's needed then imo a driving style needs to be adjusted.

 

Agreed, i see a lot of posts like the OP and i think god they must be doing something seriously wrong. I have to properly mash my accelerator on a small roundabout before things get remotely squiffy. Ive never had the back end come out when i havent expected it. And never in a strait line. I think its more common sense and driving style than being unfamiliar with a rwd car.

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Agreed, i see a lot of posts like the OP and i think god they must be doing something seriously wrong. I have to properly mash my accelerator on a small roundabout before things get remotely squiffy. Ive never had the back end come out when i havent expected it. And never in a strait line. I think its more common sense and driving style than being unfamiliar with a rwd car.

 

Dunno, mine has had the rears replaced a few month ago and now I tip toe round roundabouts if there's any damp. I drove round one at 20 - 25 and it stepped out, OK I wouldn't claim to be the best driver in the world, but I've had n/a and tt sups, skyline gtst and gtr v-spec and never known it like this. (never did on the old tyres) It's wrong when i can go round a roundabout faster in my classic mini than in the sup! :rolleyes:

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Dunno, mine has had the rears replaced a few month ago and now I tip toe round roundabouts if there's any damp. I drove round one at 20 - 25 and it stepped out, OK I wouldn't claim to be the best driver in the world, but I've had n/a and tt sups, skyline gtst and gtr v-spec and never known it like this. (never did on the old tyres) It's wrong when i can go round a roundabout faster in my classic mini than in the sup! :rolleyes:

 

What are the new rear tyres?

 

Do a geo check too?

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no but i'm going to, I even checked that the rotation was the right way. in the dry they are predictable but the slightest bit of wet and I'm a ballerina.

 

It'ssome make i've never heard of and can't for the life of me remember, when I had it serviced i asked for them to be replaced and just made sure they were z rated. Dipstick.

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no but i'm going to, I even checked that the rotation was the right way. in the dry they are predictable but the slightest bit of wet and I'm a ballerina.

 

It'ssome make i've never heard of and can't for the life of me remember, when I had it serviced i asked for them to be replaced and just made sure they were z rated. Dipstick.

 

Can you check which tyre's are fitted? They make an enormous difference to grip levels especially in the wet (difference between life and death in some curcumstances!!)

 

Has the car had a full geo done? Have you changed the wheels or suspension since buying?

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no to the wheels and suspension, they are tein and works equip wheels, but they were on when I got the car, as I say I'll have to get the geos checked out and the rubber replaced. i'll check the make and post it tomorrow. (apologies stratt, i'm close to hijacking your post :D)

 

Stratts thread was started 4 months ago, I'm sure he won't mind

 

It's only come back here becasue supra10000 posted a link to an old BPU article :D

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mine are called wintertrac or something? have to look but cost £900 for all 4 with on 19's with 10" rears..... ive got no trac con but fuc* me they grip well. don't want to get a flat anytime soon though lol

 

They could well be a dedicated winter tyre, do they have a maximum operating temperature?

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They could well be a dedicated winter tyre, do they have a maximum operating temperature?

 

i will have to find out. bought them a while ago now. i was told they will hold 185mph so the maximum operating temp must be high. doesn't take long in the cold before they grip but gives me doubts about summer driving...all 3 days of it :D

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People recomend RLTC but imo if it's needed then imo a driving style needs to be adjusted.

 

 

Before suggesting that people who have RLTC have an inappropriate driving style, remember RLTC was developed for motor sport use in the first place and later came into use in road cars. I am sure the pros who used it would not consider their driving style in need of adjustment. If I remember correctly one of the fastest cars round the track on top gear uses RLTC. RLTC helps to get the most rotational grip available for forward traction. For people new to relatively high powered RWD car it is a very worth while aid, particularly in an auto MKIV TT, which can and does catch out the unsuspecting, particularly when rubber is going off at the back. It can make the difference between life and death. It is like ABS a safety net.

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18" on NanKans = Widow makers :D

 

Sort the handling before increasing the power, if you think its a handful now, another 100hp is going to make it worse ;)

 

Widow makers agreed.

 

I run 676bhp with almost NO wheelspin in the dry, bar 1st gear, which goes to show how good a supra can be. It's a supercar, just like any Ferrari but without the hype. Only the best tyres should ever be on your car.

Dont bother wearing out those tyres, sell them on ebay or whatever and get something decent like Bridgestone RE050A and if you can find them their pole position version is even better.

AJi's recommendation is good too, but the RE050a will have less road noise. Never use directional tyres on the back, they tend to have inferior off the line grip IMO.

Then take it to Chris Wilson and he will reset the geometry to his specs, and amaze you on how it handles.

Good luck.

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Before suggesting that people who have RLTC have an inappropriate driving style, remember RLTC was developed for motor sport use in the first place and later came into use in road cars. I am sure the pros who used it would not consider their driving style in need of adjustment. If I remember correctly one of the fastest cars round the track on top gear uses RLTC. RLTC helps to get the most rotational grip available for forward traction. For people new to relatively high powered RWD car it is a very worth while aid, particularly in an auto MKIV TT, which can and does catch out the unsuspecting, particularly when rubber is going off at the back. It can make the difference between life and death. It is like ABS a safety net.

 

Valid points but it is a tool in motorsport to be the absolute fastest and driving with 100% commitment (and sometimes beyond).

 

It has it's uses and is a fantastic piece of kit that should be used as an aid, not as a replacement for skill & learning. Members hardly ever recommend that someone ought to try an advanced driving course:

 

http://pistonheads.com/gassing/topic.asp?h=0&t=585115&nmt=Advanced%20Driving%20Links

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Good point and good link. Some excellent stuff in there, some of it reminds me of some course notes I read many years ago, about best track driving techniques. There is no replacement for good driver skills. Unfortunately as more and more cars come with good quality traction control, stability control and even launch capabilities, as standard, mediocre drivers may be come over confident.

 

A few years ago a ex friend, who's driving always scared me, made too much use of ABS in braking. He virtually would have it kick in on well over half the times he hit the brakes. His comapany car, a big Senator, was in for a major service, the loan car did not have ABS. With in half an hour of leaving the dealers it he wrote the car off rear ending someone at a junction. What an idiot, he blamed the accident on the car.

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Homer is correct, rear dampers make a massive difference (very dangerous if not correct).

 

One of mine was dogey and believe me, it was a scarey experience driving the supe. Just swapped them over along with new upper suspension arms and the difference is massive (almost unblievable). Off line grip is excellent, round corners it handles like its on rails (i darent find the limit of the grip), although even with an N/A if i plant my right foot mid corner the back will step out - i think that last point is pretty obvious, any power mid corner with RWD will cause problems.

 

I run Michelin Pilot sports and find them better than the previous Uniroyal rainsports i ran (although the rainsports were still good).

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