New Coilovers makes my Car Slides

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coolq
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Fri Apr 07, 2006 8:33 am

As above, fitted some FK coilovers to my 325i, and now the cars handling seems worse when i try to snap it round corners it seems to just slide off rather than grip and go round the bends like its on tracks, its really p*ssing me off does anyone know what else i might need to fix the problem, and yes it does this on both hard and softest setups. :x
Last edited by coolq on Fri Apr 07, 2006 12:38 pm, edited 1 time in total.
E30BeemerLad
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Fri Apr 07, 2006 9:13 am

think i would get the car in for an alignment check, but first of all check your track control arms (track rod ends) as lowering a car can aggravate weak/ worn out track rod ends.
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Fri Apr 07, 2006 9:25 am

Fitting new suspension parts requires a re-alignment every time!
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coolq
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Fri Apr 07, 2006 9:35 am

so do they reallign it automatically?
Geeman
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Fri Apr 07, 2006 9:46 am

Who...?

If you fit suspension parts, especially coilovers that have a brand new hub, you're altering the suspension geometry.

I take it that you didn't fit it yourself then... :wink:
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coolq
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Fri Apr 07, 2006 10:02 am

no got it fitted at my local bodyshop. but i thought the whole idea of stiff coilovers was that it makes your car stick to the road, not slide about, in the wet its like in drivin on black ice round, but i do try n push 50mph round, roundabouts and take hairpins at 40 lol, why not play, i might as well go back to py previous setup, it rolled more but it didnt slide about as much.
E30BeemerLad
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Fri Apr 07, 2006 10:05 am

dude, just take it for a 4 wheel alignment at a cost of about £40.

Your castor & camber angles are probably all over the place.

I would wager it will feel like a different animal once the geometry has been set up.

Where abouts in Norfolk are you?
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coolq
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Fri Apr 07, 2006 10:07 am

to be honest im more suffolk now, ive recently moved into newmarket, but before that i was in the norwich area.
E30BeemerLad
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Fri Apr 07, 2006 10:17 am

Cool, i should be moving back to a place called Banham before the end of the year
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coolq
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Fri Apr 07, 2006 10:19 am

i know where that is its not far from my sisters place over in diss.
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Fri Apr 07, 2006 2:51 pm

coolq wrote: i might as well go back to py previous setup, it rolled more but it didnt slide about as much.
Why didn't you just go for stiffer anti roll bars, would have dramatically improved the handling. Cheaper too, and would have preserved the suspension geometry that BMW spent millions researching.
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Fri Apr 07, 2006 3:04 pm

Cool, i should be moving back to a place called Banham before the end of the year
I know Banham, my outlaws live there :D

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Fri Apr 07, 2006 4:19 pm

What are your spring rates??
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Fri Apr 07, 2006 4:23 pm

coolq wrote:to be honest im more suffolk now, ive recently moved into newmarket, but before that i was in the norwich area.
Where abouts in newmarket mate?

The garage on the exning road is top notch, (Newmarket motors) go in and ask for Martin or Frank

They will sort you out a treat
Tell them Paul with the 318 silver Cab sent you


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Fri Apr 07, 2006 8:20 pm

coolq wrote:no got it fitted at my local bodyshop. but i thought the whole idea of stiff coilovers was that it makes your car stick to the road, not slide about, in the wet its like in drivin on black ice round, but i do try n push 50mph round, roundabouts and take hairpins at 40 lol, why not play, i might as well go back to py previous setup, it rolled more but it didnt slide about as much.
Ummm surely a stiffer car will slide more in the wet?
If you were setting up a race car you'd soften everything for a wet race
Cheers,
Robin

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calder
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Sat Apr 08, 2006 1:04 pm

roundabouts can = diesel and depends on weather conditions. i once saw almost a gallon of fuel come out of a lorry tank when it went round a roundabout must have been a loose filler cap
Wet weather could also have raised dirt and grime out of the road surface and made it super slippy. Maybe cold tyres? tyre just don't warm up on the road like they do on a track.
check alignment as above - and if you have coilovers have the ride heights and corner weights been set? the wieght jacking could be all over the place. to really test it you need to get it on a track.
it may be that you're not yet used to the new suspension?
calder
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coolq
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Sat Apr 08, 2006 6:31 pm

calder wrote:roundabouts can = diesel and depends on weather conditions. i once saw almost a gallon of fuel come out of a lorry tank when it went round a roundabout must have been a loose filler cap
Wet weather could also have raised dirt and grime out of the road surface and made it super slippy. Maybe cold tyres? tyre just don't warm up on the road like they do on a track.
check alignment as above - and if you have coilovers have the ride heights and corner weights been set? the wieght jacking could be all over the place. to really test it you need to get it on a track.
it may be that you're not yet used to the new suspension?
how stupid, on a track what the hell are you taling about this is real life not the grand prix, im fed up of ppl like you talking in fantasy land. :x
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Sat Apr 08, 2006 6:58 pm

From the description given I'd say the car either spends a long time on full compression and is therefor riding the bumpstops, or the damper rate is simply to hard and the car is skipping from crest to bump with the suspension still compressed from the first impact.

if you can minimise any damper settings do so, especially rebound if available

I fitted an FK kit to a mates( dont laugh) PT Cruiser, slammed her to the floor so much the balljoints were at the limits of theor travel and binding, hence he suffered horrible bump steer, I fear this could be the case here dude.

if all else fails, go back up 20mm, leave everything the same other than that and repaet the roadtest.

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Jimbob
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Sat Apr 08, 2006 7:14 pm

coolq wrote:
calder wrote:roundabouts can = diesel and depends on weather conditions. i once saw almost a gallon of fuel come out of a lorry tank when it went round a roundabout must have been a loose filler cap
Wet weather could also have raised dirt and grime out of the road surface and made it super slippy. Maybe cold tyres? tyre just don't warm up on the road like they do on a track.
check alignment as above - and if you have coilovers have the ride heights and corner weights been set? the wieght jacking could be all over the place. to really test it you need to get it on a track.
it may be that you're not yet used to the new suspension?
how stupid, on a track what the hell are you taling about this is real life not the grand prix, im fed up of ppl like you talking in fantasy land. :x
Track day is only fantasy to you mate, the guy was only trying to help you ffs. He mentioned 'track' one and you just go off on one? STFU.
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