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Understeer in the wet.......



  R35 GTR
Well i lifted off and naturally the back went light.lol. not very fast either around the island.

What is the correct thing to do? I believe this would be a common problem in wet weather.

I went to a car park to practice as I dont want to be caught out by silly mistakes.
 
Overstear is when the car tunr understear is when it does you had overstear

Don't lift or get your foot back on to ballance the car or learn how to do lift off overstear its not easy with drive by wire though.
 
  R35 GTR
I understand what oversteer and understeer are, its just how to control them that I am s**t at.

because if i was back on throttle with oversteer, then I would have more understeer in the wet.....:S
 
  1998 BMW e46 323i
brake on approach to corners. Accelerate gently through corner, to keep weight over the rear wheels, then power out of corner. Lift-off oversteer, what you experienced Dave, can make you sh1t a brick, there and then.

Like edde says, you can provoke lift-off oversteer if that's what you're into. IS fun though, scaring passengers/colleagues is a hoot:approve:
 
  R35 GTR
lol. I can read up on this loads but I need to go on a course.

Just read a funny thing:

understeer is going through a hedge forwards, while oversteer is going through a hedge backwards.:quiet:

So what would you do if the car understeers around an island in the wet?
 
  R35 GTR
I said to rebecca if i crash it on the carpark its only a car, but if i do it on a road and dont expect it or know what to do we would be fooked.

Why dont they teach this s**t for the normal driving test.:mad:
 
  RenaultSport clio 172 mk2
Some things are fundamental. They are dictated by the laws of physics. If you have a fairly powerful car with a short wheelbase and a significantly different amount of weight on front and rear axles and a rudimentary suspension like the Clio Sport you're going to get the effects you describe. That's what the ESP is for. Because it can do what you can't do. In the dry you get smooth transitions between under and oversteer and with a bit of practice you can balance the car on the edge with just the right amount of throttle. But in the wet the transition from one to the other is quick and unpredictable, especially on well-used road surfaces where there is smooth patchs and wet patches and oil patches, and it takes a computer to be fast enough to react to it. It feels the rear "go light", ie, rotation of the vehicle around its vertical axis as it transitions from understeer to oversteer, and it uses the ABS to brake the inner front and outer rear wheel to stop the rotation. The car will still feel light in the rear, but it won't break away.
 
  cock mobile.
What you do really depends on the surroundings, how fast you're turing, what speed you are doing, is it a tight apex, etc etc.

john.med basically explained how not to get lift off oversteer.

To correct oversteer generally turning in the opposite direction with a bit of power will straighten you up, but what / how you do it does depend on those said surroundings.
 

al

  ST on the way...
Dave3141 said:
Just read a funny thing:

understeer is going through a hedge forwards, while oversteer is going through a hedge backwards.:quiet:

So what would you do if the car understeers around an island in the wet?

I like that analogy! :)

If you get understeer on an island don't suddenly lift off just slip the clutch in a bit.
 

MarkCup

ClioSport Club Member
The correct way top neutralise understeer is remove the causes...

Too much steering input; remedy...take some lock off, then feed it back on gently so the wheels grip the surface and turn the vehicle instead of sliding across it.

Too much speed into a corner; remedy...lift off the throttle gently, and as above, be ready to remove a little lock to counteract the increased yaw (rotation).

Too much acceleration out of the corner; remedy...accelerate less. No need to worry about taking lock off on this one as you are accelerating meaning the vehicle weight is biased towards the rear already so no oversteer.
 
I dont class myself as a good driver, but I find my 182 very predictable near the limits in the dry. It's quite easy to get the back end out and pull out of it with a flick of lock and a squeeze on the throttle. Even when changing direction rapidly into another bend, it doesn't really threaten to fishtail and spin.

I practised a lot in a huge open carpark that I had access to recently. My advice would be to practise with the ESP off. It will allow the tail to slide but it snatches control away too sharply when it kicks in. With the ESP off you can have lots of fun! I very seldom find a road situation where conditions are suitable for a such antics, but it is fun when you get the chance.
 
Dave3141 said:
lol. I can read up on this loads but I need to go on a course.

Just read a funny thing:

understeer is going through a hedge forwards, while oversteer is going through a hedge backwards.:quiet:

So what would you do if the car understeers around an island in the wet?

I've heard another definition of it somewhere it read; Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car, horsepower is how fast you hit the wall and torque is how far you take the wall with you!
 
  R35 GTR
lol.

thanks for the useful info, will go looking for a different car park tonight with loads of space if esp is being switched off.....

There seems to be a few different ways of rescuing the car, I was considering doing an advanced driving course to test a few things out.
 
MarkCup said:
The correct way top neutralise understeer is remove the causes...

Too much steering input; remedy...take some lock off, then feed it back on gently so the wheels grip the surface and turn the vehicle instead of sliding across it.

Too much speed into a corner; remedy...lift off the throttle gently, and as above, be ready to remove a little lock to counteract the increased yaw (rotation).

Too much acceleration out of the corner; remedy...accelerate less. No need to worry about taking lock off on this one as you are accelerating meaning the vehicle weight is biased towards the rear already so no oversteer.

as he says but point 2 make sure you do it GENTLY dont close the throttle
 
  v6 mk2
the correct thing to do is to buy a trophy, they dont understeer, at all.

best handling car ive driven. But the best way would be as mark cup said and lift off progressively!!

or if its desperate you could use a touch of the old h'brake rather than lift off.
 
  R35 GTR
chunktrophy said:
the correct thing to do is to buy a trophy, they dont understeer, at all.

best handling car ive driven. But the best way would be as mark cup said and lift off progressively!!

or if its desperate you could use a touch of the old h'brake rather than lift off.

hmm, I think my coilovers are a good match for your trophy suspension and as to the comment they dont understeer......all fwd cars are set to understeer arent they?
 
  v6 mk2
do your coilovers cost 1300 each for the fronts??

yeah the trophy will understeer, but its quite hard to get to that point!!! lol
i didnt realise you had coilovers mate. The tyres seem to have a lot to do with the 182's good handling, are your tyres A1??
 
  R35 GTR
chunktrophy said:
do your coilovers cost 1300 each for the fronts??

yeah the trophy will understeer, but its quite hard to get to that point!!! lol
i didnt realise you had coilovers mate. The tyres seem to have a lot to do with the 182's good handling, are your tyres A1??

Its renault the ashtray cost an arm and a leg...:clown:

I havent checked my tyres for a while, in the wet i can get understeer very easy,but in dry its very hard, i can get the tyres chirping round the corners thats about it. Going round motorway islands at 70 with neutral steer ( think that's the correct term), my mates cant keep up easily with their standard suspension/cup suspension and they are better drivers.
 
  v6 mk2
when i had my 172 i had h&r's coily's on it, i did have a bit of a problem with understeer in the wet but i put it down to me not getting them 'professionally' set-up, my dad fitted them!!

i dont know if you have fitted yours by yourself or if a specialist could help you out by adjusting them etc??

Ian
 


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