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Author Under heavy braking...
Paul_J
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Registered: 6th Jun 02
Location: London
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12th Apr 04 at 17:42   View User's Profile U2U Member Reply With Quote

Under heavy braking atm, my car squirms all over the place (wheels are not locked), but through the steering wheel you can feel it trying to wriggle all over the road... why is this?
Paul H
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Registered: 11th Aug 03
Location: Lincoln.
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12th Apr 04 at 17:46   View User's Profile U2U Member Reply With Quote

maybe got the wrong offset wheels
Baz-Zico
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Registered: 15th Jan 03
Location: Glasgow, Renfrewshire
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12th Apr 04 at 17:48   View User's Profile U2U Member Reply With Quote

yup, same happens with me with ET40
Red_SXi
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Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
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12th Apr 04 at 17:52   View User's Profile U2U Member Reply With Quote

Tram lining?
Adam-D
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Registered: 11th May 02
Location: Cheshire
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12th Apr 04 at 17:54   View User's Profile U2U Member Reply With Quote

it could be the rear brakes are too powerfull
and the back end is trying to overtake the front

mine does it and my bias valve needs sorting

to test find a big open space get to bout 30mph turn and brake if it swaps ends then it needs adjusting
Red_SXi
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Registered: 23rd Sep 02
Location: Dunstable Drives: 52 Plate BMW 3 M Sport Coupe
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12th Apr 04 at 17:58   View User's Profile U2U Member Reply With Quote

i've heard after lowering the bias valve needs adjusting?
Adam-D
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Registered: 11th May 02
Location: Cheshire
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12th Apr 04 at 18:07   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Red_Sxi
i've heard after lowering the bias valve needs adjusting?


yup mine is 60mm and maybee and some
so i need to modyfy the adjuster a bit

but since i fitted ate 2ltr front brakes its evened out a bit
uprated
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Registered: 1st Sep 03
Location: York
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12th Apr 04 at 18:21   View User's Profile U2U Member Reply With Quote

the bias valve only needs altering on 1.4 and 1.6 corsas, and anything over 35mm - 40mm drop needs new parts making for the valve to regain it original position. 1.2 corsas have pressure dependant valves which dont need touching whatsoever.

just a few of what it could be, warped discs, wrong offset wheels, fooked suspension, rear brakes might be knackd.
Adam-D
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Registered: 11th May 02
Location: Cheshire
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12th Apr 04 at 18:42   View User's Profile U2U Member Reply With Quote

in my case deffo the valve
Jambo
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Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
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12th Apr 04 at 18:44   View User's Profile U2U Member Reply With Quote

mine doesnt squirm too much i guess my valve is out a teenie bit, nothing scary tho, just hold that wheels tight lol
Paul_J
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Registered: 6th Jun 02
Location: London
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12th Apr 04 at 18:47   View User's Profile U2U Member Reply With Quote

45 offset wheels all round defo...

my car is lowered 40mm on a full suspension kit...

I think Adam-D might be on the ball? although I only have rear drums, I do find I can get the back out if I put my foot on the brakes very hard and sharply (drums locking?) - although this I'm talking about is where I'm going from say 70 mph to 30 mph and am not locking but applying heavy pressure - so it may still be the case?

Otherwise as red has said tramlining could also be causing it, but its a bit too severe imo.
Ian
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Registered: 28th Aug 99
Location: Liverpool
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12th Apr 04 at 18:49   View Garage View User's Profile U2U Member Reply With Quote

Wheel width is a factor.

Sounds like your bias needs looking at though.
Paul_J
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Registered: 6th Jun 02
Location: London
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12th Apr 04 at 19:03   View User's Profile U2U Member Reply With Quote

boo I liked getting the arse out without using the hand brake... but I must admit It is pretty scary atm speeding along dual carriageways then having to brake at the last minute at a roundabout and having the car trying to wander all over the road as I brake.
corsa_jim
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Registered: 21st Sep 03
Location: guisborough
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12th Apr 04 at 19:03   View User's Profile U2U Member Reply With Quote

try gettin it to a local garage with brake rollers you might have a front brake that is pullin on better than the other side which would make it squirm under heavy brakeing

Jim
Ransom
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Registered: 5th Apr 04
Location: Buxton, Derbyshire
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12th Apr 04 at 22:14   View User's Profile U2U Member Reply With Quote

my corsa always seems to skid when i brake heavy.....prolly just me :/
OdJ 89
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Registered: 12th Aug 08
Location: Dartford, Kent
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15th Aug 08 at 17:30   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Paul_J
boo I liked getting the arse out without using the hand brake... but I must admit It is pretty scary atm speeding along dual carriageways then having to brake at the last minute at a roundabout and having the car trying to wander all over the road as I brake.


Lol. Maybe it's just me, but I like to be able to feel when I'm braking heavily... mine shakes when I get close to locking up who needs ABS?
Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
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16th Aug 08 at 01:34   View User's Profile U2U Member Reply With Quote

As i know that your a good driver, i know that you know how not to lock up. With my Corsa i can have a little fun and lock the rear wheel up but in an emergency stop this won't happen as i know how to not make this happen.

So just factor in other things. Like tramlining or just shite on the road. Have a play at ather areas to see if the result is the same.

If it is then i'd look at your shoes for starters. Are they too tight and causing them to come on too early? Mine did that when i hadn't set things up right. If all is well, then check your bias.
Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
16th Aug 08 at 07:21   View User's Profile U2U Member Reply With Quote

2004 called. . . . .

 
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