180 spin WITHOUT traction loss
22 December 2016, 04:06 PM
#151
so what happens when my next car develops a steering problem? bin that too?
my old car had this type of steering problem too actually - which is the reason i got rid of THAT car too... if you can believe this... so i'd like to get to the ****ing bottom of this!
the most tragic thing is, if i scrap this spec C i will be looking to get another scooby - which no doubt will be heavier and slower
my old car had this type of steering problem too actually - which is the reason i got rid of THAT car too... if you can believe this... so i'd like to get to the ****ing bottom of this!
the most tragic thing is, if i scrap this spec C i will be looking to get another scooby - which no doubt will be heavier and slower
22 December 2016, 04:14 PM
#153
Scooby Regular
Thread Starter
Join Date: Jul 2011
Location: uk
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
sad thing is, that thing will handle better than mine - i'd bet the house on it.
the most frustrating thing is, a 90 year old lady driving my car would be able to tell instantly that there was something SERIOUSLY wrong with the car at the first corner they had to negotiate.... so why the hell can't any mechanic find the problem when it is so profoundly obvious when operating it?!
the most frustrating thing is, a 90 year old lady driving my car would be able to tell instantly that there was something SERIOUSLY wrong with the car at the first corner they had to negotiate.... so why the hell can't any mechanic find the problem when it is so profoundly obvious when operating it?!
22 December 2016, 04:27 PM
#155
sad thing is, that thing will handle better than mine - i'd bet the house on it.
the most frustrating thing is, a 90 year old lady driving my car would be able to tell instantly that there was something SERIOUSLY wrong with the car at the first corner they had to negotiate.... so why the hell can't any mechanic find the problem when it is so profoundly obvious when operating it?!
the most frustrating thing is, a 90 year old lady driving my car would be able to tell instantly that there was something SERIOUSLY wrong with the car at the first corner they had to negotiate.... so why the hell can't any mechanic find the problem when it is so profoundly obvious when operating it?!
22 December 2016, 04:39 PM
#157
Scooby Regular
Thread Starter
Join Date: Jul 2011
Location: uk
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
22 December 2016, 04:40 PM
#158
Scooby Regular
Thread Starter
Join Date: Jul 2011
Location: uk
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
can't i tighten up the steering myself? is it easy to do?
here's the best i can explain it:
right now it feel like the metal arms (technical term) that connect to the wheels are made of rubber elastic bands - the more i push into a corner, the further they stretch... the further the steering wheel and the car itself feel 'disconnected' from one another.
when the mechanic tightened the steering, those metal arms still felt like rubber bands... but they were much thicker and harder to stretch. with each day driving it afterwards, i could feel those metal arms returning more and more elastic/loose again, till we are back at ground zero.
even the steering wheel itself felt much more tight and harder to physically turn when it came back from the mechanic. now it feels like jelly again.
here's the best i can explain it:
right now it feel like the metal arms (technical term) that connect to the wheels are made of rubber elastic bands - the more i push into a corner, the further they stretch... the further the steering wheel and the car itself feel 'disconnected' from one another.
when the mechanic tightened the steering, those metal arms still felt like rubber bands... but they were much thicker and harder to stretch. with each day driving it afterwards, i could feel those metal arms returning more and more elastic/loose again, till we are back at ground zero.
even the steering wheel itself felt much more tight and harder to physically turn when it came back from the mechanic. now it feels like jelly again.
Last edited by walterwhite; 22 December 2016 at 04:41 PM.
22 December 2016, 05:04 PM
#160
Scooby Regular
Thread Starter
Join Date: Jul 2011
Location: uk
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
in glasgow here.
i'd like to mention that roundabouts (or any chicane-type manoeuvre) are where the problem plays up the worst... and i mean BY FAR the worst.
if you can imagine, steering one way, then in the opposite direction - when the "steering" hasn't even caught up with heading in the first direction. it's a mess.
i'd like to mention that roundabouts (or any chicane-type manoeuvre) are where the problem plays up the worst... and i mean BY FAR the worst.
if you can imagine, steering one way, then in the opposite direction - when the "steering" hasn't even caught up with heading in the first direction. it's a mess.
22 December 2016, 05:18 PM
#162
Scooby Regular
Thread Starter
Join Date: Jul 2011
Location: uk
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
i got the rack changed cause there was nowhere left to go, and i wasn't surprised when it didn't solve the problem.
it is either something so obvious they all overlook it, or it is an external/secondary factor causing the problem - and the physical steering parts are indeed kosher.
i know suspension affects handling, but surely not possibly to this degree... i was thinking power steering maybe, but have no clue.
22 December 2016, 07:10 PM
#168
Scooby Regular
22 December 2016, 08:22 PM
#169
Scooby Regular
Join Date: Aug 2014
Location: Chewing the fat
Posts: 990
Likes: 0
Received 0 Likes
on
0 Posts
Lol, is this thread still going? I had a feeling we hadn't heard the last of Walter and his Spec C! 
Who, Ethel McEtherington? Well, she and her Corsa did leave you for dust through the twisties during that B-road blast! 
22 December 2016, 09:33 PM
#170
Scooby Regular
Join Date: Oct 2014
Location: Portsmouth
Posts: 139
Likes: 0
Received 0 Likes
on
0 Posts
Not sure if it helps, but I came across this when googling sloppy steering...
Bushes or tyre pressure could be affecting you?
http://www.subaruforester.org/vbulle...56/index2.html
Bushes or tyre pressure could be affecting you?
http://www.subaruforester.org/vbulle...56/index2.html
23 December 2016, 01:44 AM
#173
Scooby Regular
iTrader: (4)
Join Date: Sep 1999
Location: MY99UK-MY02STi-MY99Type R-MY06 T20-MY11 340R-MY05 TYPE25
Posts: 11,468
Received 22 Likes
on
19 Posts
The Coefficient of Friction
Friction is "the resistance an object encounters in moving over another" (OED).
It is easier to drag an object over glass than sandpaper. The reason for this is that the sandpaper exerts more frictional resistance. In many problems, it is assumed that a surface is "smooth", which means that it does not exert any frictional force. In real life, however, this wouldn't be the case. A "rough" surface is one which will offer some frictional resistance.
Limiting Equilibrium
Imagine that you are trying to push a book along a table with your finger. If you apply a very small force, the book will not move. This must mean that the frictional force is equal to the force with which you are pushing the book. If the frictional force were less that the force produced by your finger, the book would slide forward. If it were greater, the book would slide backwards.
If you push the book a bit harder, it would still remain stationary. The frictional force must therefore have increased, or the book would have moved. If you continue to push harder, eventually a point is reached when the frictional force increases no more. When the frictional force is at its maximum possible value, friction is said to be limiting. If friction is limiting, yet the book is still stationary, it is said to be in limiting equilibrium. If you push ever so slightly harder, the book will start to move. If a body is moving, friction will be taking its limiting value.
In summary:
The frictional force between two objects is not constant, but increases until it reaches a maximum value. When the frictional force is at its maximum, the body in question will either be moving or will be on the verge of moving.
The Coefficient of Friction
The coefficient of friction is a number which represents the friction between two surfaces. Between two equal surfaces, the coefficient of friction will be the same. The symbol usually used for the coefficient of friction is m
The maximum frictional force (when a body is sliding or is in limiting equilibrium) is equal to the coefficient of friction × the normal reaction force.
F = mR
Where m is the coefficient of friction and R is the normal reaction force.
This frictional force, F, will act parallel to the surfaces in contact and in a direction to oppose the motion that is taking/ trying to take place.
Example
A particle of mass 5 kg is at limiting equilibrium on a rough plane which is inclined at an angle of 30 degrees to the horizontal. Find the coefficient of friction between the particle and the plane.
Resolving up the plane:
F - 5gsin30 = 0
Resolving perpendicular to the plane:
R = 5gcos30
In limiting equilibrium, so F = mR
5gsin30 = m5gcos30
m = sin30/cos30 = 0.577 (3sf)
You could always work it out.
Tony
Friction is "the resistance an object encounters in moving over another" (OED).
It is easier to drag an object over glass than sandpaper. The reason for this is that the sandpaper exerts more frictional resistance. In many problems, it is assumed that a surface is "smooth", which means that it does not exert any frictional force. In real life, however, this wouldn't be the case. A "rough" surface is one which will offer some frictional resistance.
Limiting Equilibrium
Imagine that you are trying to push a book along a table with your finger. If you apply a very small force, the book will not move. This must mean that the frictional force is equal to the force with which you are pushing the book. If the frictional force were less that the force produced by your finger, the book would slide forward. If it were greater, the book would slide backwards.
If you push the book a bit harder, it would still remain stationary. The frictional force must therefore have increased, or the book would have moved. If you continue to push harder, eventually a point is reached when the frictional force increases no more. When the frictional force is at its maximum possible value, friction is said to be limiting. If friction is limiting, yet the book is still stationary, it is said to be in limiting equilibrium. If you push ever so slightly harder, the book will start to move. If a body is moving, friction will be taking its limiting value.
In summary:
The frictional force between two objects is not constant, but increases until it reaches a maximum value. When the frictional force is at its maximum, the body in question will either be moving or will be on the verge of moving.
The Coefficient of Friction
The coefficient of friction is a number which represents the friction between two surfaces. Between two equal surfaces, the coefficient of friction will be the same. The symbol usually used for the coefficient of friction is m
The maximum frictional force (when a body is sliding or is in limiting equilibrium) is equal to the coefficient of friction × the normal reaction force.
F = mR
Where m is the coefficient of friction and R is the normal reaction force.
This frictional force, F, will act parallel to the surfaces in contact and in a direction to oppose the motion that is taking/ trying to take place.
Example
A particle of mass 5 kg is at limiting equilibrium on a rough plane which is inclined at an angle of 30 degrees to the horizontal. Find the coefficient of friction between the particle and the plane.
Resolving up the plane:
F - 5gsin30 = 0
Resolving perpendicular to the plane:
R = 5gcos30
In limiting equilibrium, so F = mR
5gsin30 = m5gcos30
m = sin30/cos30 = 0.577 (3sf)
You could always work it out.
Tony
23 December 2016, 10:53 AM
#174
Scooby Regular
If the steering is fine and all the front end is fine then it's the rear that's at fault.
If there's a loose rear link making one of the rear wheels move around then it's going to be all over the place.
I race RC cars and the principles of setup are exactly the same. If the car is all over the place but the steering setup is spot on then it's always going to be the rear end.
If there's a loose rear link making one of the rear wheels move around then it's going to be all over the place.
I race RC cars and the principles of setup are exactly the same. If the car is all over the place but the steering setup is spot on then it's always going to be the rear end.
23 December 2016, 02:17 PM
#176
Scooby Regular
Thread Starter
Join Date: Jul 2011
Location: uk
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
If the steering is fine and all the front end is fine then it's the rear that's at fault.
If there's a loose rear link making one of the rear wheels move around then it's going to be all over the place.
I race RC cars and the principles of setup are exactly the same. If the car is all over the place but the steering setup is spot on then it's always going to be the rear end.
If there's a loose rear link making one of the rear wheels move around then it's going to be all over the place.
I race RC cars and the principles of setup are exactly the same. If the car is all over the place but the steering setup is spot on then it's always going to be the rear end.
28 December 2016, 09:52 AM
#177
Scooby Regular
Thread Starter
Join Date: Jul 2011
Location: uk
Posts: 120
Likes: 0
Received 0 Likes
on
0 Posts
