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Dannyboy 
Really Senior Member I 
Joined: 24-August-2005 Location: Hunstanton Status: Offline Points: 301 |
 Topic: off centre top mountsPosted: 04-February-2006 at 14:41 |
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How do these work? do you need different mounts depending on how
much you have lowered the car by? |
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1992 clio 1.8 16V Good
1998 Subaru Impreza Turbo Terzo Great 1987 M3 Diamond Black Awesome (Now awesomer with Billys & Eibach) |
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215DMX
Really Senior Member II 
Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780 |
Posted: 04-February-2006 at 15:47 |
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Technically they are called 'crash mounts'. Basically
they give you 0.5 degree extra negative camber. It helps turn in, but you don't get something for nothing.... as you will get noticably increased wear on the inside edges of your tyres. It makes no difference wether you have a lowered car or not if you want to use them. The more specialised top mounts will allow for adjustability in camber and caster and are normally made without use of rubbber. |
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Dannyboy
Really Senior Member I
Joined: 24-August-2005 Location: Hunstanton Status: Offline Points: 301 |
Posted: 04-February-2006 at 16:01 |
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Why do C3 list them as being used to correct the negative camber created
by lowering the car? am I mis understanding what they mean by this? I think they mean that when you lower the car it adds negative camber and fitting off centre top mounts removes the negative camber that you have added by lowering the car. |
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1992 clio 1.8 16V Good
1998 Subaru Impreza Turbo Terzo Great 1987 M3 Diamond Black Awesome (Now awesomer with Billys & Eibach) |
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ultegra
Really Senior Member I
I Hate Sunday Lunch Joined: 18-November-2003 Location: Itinerant Pikey Status: Offline Points: 319 |
Posted: 05-February-2006 at 06:41 |
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You are right. If what you want is the perpendicular angle of the tyre restored. Take a look at an e36 m3 evo or an M Coupe: they have offset topmounts, but the strut bearing is offset OUTWARDS [The 3.0 had concentric topmounts].
For all you e36 types, these are the topmounts that are often used swapped L to R to get the negative camber that you want on trackdays etc. If you look carefully you can see the L for left stamp on the reinforcement plate in the topmount.
Edited by ultegra |
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Chris Enright
M Coupe Silver ex M Coupe Black ex 318is Silver 318is White ex M3 GT ex 318is Red ex 318is Blue 316i shell - watch this space... 
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Matt T
Really Senior Member I
Joined: 16-January-2006 Location: London Status: Offline Points: 399 |
Posted: 05-February-2006 at 08:00 |
Thats correct |
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215DMX
Really Senior Member II
Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780 |
Posted: 05-February-2006 at 10:43 |
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I really cannot see why you would want to add
positive camber to a M3, it is biased towards roll induced understeer as it is. Alpina even used these on most of their suspension systems for the e30 to increase negative camber for a better handling car... |
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Dannyboy
Really Senior Member I
Joined: 24-August-2005 Location: Hunstanton Status: Offline Points: 301 |
Posted: 05-February-2006 at 12:25 |
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I do not want to make my car hove positive camber I want to restore the
factory camber settings after lowering it. |
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1992 clio 1.8 16V Good
1998 Subaru Impreza Turbo Terzo Great 1987 M3 Diamond Black Awesome (Now awesomer with Billys & Eibach) |
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215DMX
Really Senior Member II
Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780 |
Posted: 05-February-2006 at 14:39 |
I presume you want a better handling car, thats why you are lowering it in the first place, so why not make it even better with increased camber? It will make a difference. Edited by 215DMX |
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Dannyboy
Really Senior Member I
Joined: 24-August-2005 Location: Hunstanton Status: Offline Points: 301 |
Posted: 05-February-2006 at 14:49 |
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because i drive mainly on the road and more camber isn't necessarily
better plus it wares the tyres out quicker. |
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1992 clio 1.8 16V Good
1998 Subaru Impreza Turbo Terzo Great 1987 M3 Diamond Black Awesome (Now awesomer with Billys & Eibach) |
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215DMX
Really Senior Member II
Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780 |
Posted: 05-February-2006 at 15:08 |
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OK.
As a point of interest these neg. camber mounts are also listed as a GroupN part and also i believe they came as standard equipment on the EVO2. And this is the sort of negative camber you want on track days... 
Over to you Uwe............. hint hint nudge nudge |
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mysteron35
Senior Member II 
Kings Lynn Joined: 09-March-2004 Location: Kings Lynn Status: Offline Points: 152 |
Posted: 05-February-2006 at 16:19 |
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Hi Dannyboy , I have had these on all my M3's and love them ! my Black car is fairly low and has these top mounts fitted , I use my car every day and covered well over 10k miles last year with no wearing of the outside edge . As you know I'm very local to you so your welcome to drive my car and see what you think . Regards, Steve . |
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92 Carrera RS
95 3.0 M3 ex 5 x e30 m3'3 ex e35 M5 |
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M3Booboo
Senior Member I 
Joined: 25-July-2005 Location: London Status: Offline Points: 120 |
Posted: 07-February-2006 at 14:06 |
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Hi Dan, I just went for a set of these when I renewed everything and I must say handling feels much better with negative camber...only setback is the tyre wear. Ed. |
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Owned original Sport Evo when new...couldn't resist buying another one 15 years later!
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Dannyboy
Really Senior Member I
Joined: 24-August-2005 Location: Hunstanton Status: Offline Points: 301 |
Posted: 07-February-2006 at 16:15 |
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My car has been lowered by 30mm therefore increasing the amout of
neagative camber all round. I would like to reduce the amount of negative came so that it is closer to the factory settings. My original question which perhaps was poorly explained is. C3 list offset top mounts as being able to restore factory camber settings after lowering, are they a one size fits all solution or do you need different mounts depen ding on how much you have lowered your car. |
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1992 clio 1.8 16V Good
1998 Subaru Impreza Turbo Terzo Great 1987 M3 Diamond Black Awesome (Now awesomer with Billys & Eibach) |
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215DMX
Really Senior Member II
Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780 |
Posted: 07-February-2006 at 16:55 |
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There is only one option they don't come as left or
right, you can fit to give plus or minus 30 minutes, wether that will be enough or even too much for how much (I have a feeling it might be slighty too much.) you lowered the car, only a laser check before AND after would tell. As a guide (if my memory serve me correct !) factory is between 1*12' - 0*12' Edited by 215DMX |
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UweM3
Moderator Group
Joined: 11-February-2003 Location: United Kingdom Status: Offline Points: 5445 |
Posted: 07-February-2006 at 18:07 |
I know, I know, guilty 
Just to explain the picture. It shows a quick adjustable mount for trackday / road use. When driving TO the track, it remains in the stock centre position. Once arrived you lift your car, open the three nuts and move the top mount to negative (read FUN!!). Before you drive home, lift the car again and set back to centre. Takes 5 mins each side. This avoids tyre wear in daily use of the car. The negative setting is anyway not THAT dramatical in daily driving if you ask me. (...and yes I have promised to manufacture a few and I will do my best to get that sorted before the track day season is fully on. Please have mercy, have got some other important things to do right now) BTW is there any interest in such a conversion? (will be less money than the Grp N's) Edited by UweM3 |
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E61 520d, slow and buzzy but my wallet likes the mpg.....
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jpboost
Really Senior Member I
Joined: 24-June-2005 Location: London, GB Status: Offline Points: 292 |
Posted: 08-February-2006 at 03:54 |
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Uwe, I'd potentially be interested, but it would depend on cost Can you Pm me a ballpark figure (or give a rough price of the Grp N's are?) Cheers John |
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SHEPSM3
Bavarian-Board Contributor 
UK Sport Evolution. Joined: 26-December-2004 Location: Bristol, UK. Status: Offline Points: 1934 |
Posted: 08-February-2006 at 05:25 |
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Were they really standard on the EVO2? Looks pretty much like any other E30 M3 on mine??? |
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[IMG]http://i4.photobucket.com/albums/y135/ShepsM3/New-1a1.jpg">[IMG]http://i4.photobucket.com/albums/y135/ShepsM3/New-1b1.jpg">
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Jake
Groupie 
Joined: 19-February-2005 Location: East Anglia Status: Offline Points: 82 |
Posted: 08-February-2006 at 07:53 |
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Hi Danny, Before assuming your camber is out of the factory range, have it measured. You may find it is still within. However, I'm assuming handling is not the reason you lowered your M. If tyre wear is your only concern install the crash mounts to reduce neg camber and be done with it. It is a fact that you will enjoy less tyre wear. Sadly the handling will not be improved one bit (actually reduced).
Hope this helps, Jake |
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Jake
Groupie
Joined: 19-February-2005 Location: East Anglia Status: Offline Points: 82 |
Posted: 08-February-2006 at 07:57 |
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P.S. Crash mounts were not standard on any E30. Cheers, Jake |
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Dannyboy
Really Senior Member I
Joined: 24-August-2005 Location: Hunstanton Status: Offline Points: 301 |
Posted: 08-February-2006 at 10:59 |
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Just to be clear My m3 was lowered when i got it I am not now nor have I
ever been into lowering cars, huge stereos, neon lights or any of that nonsense. I have bought all of my cars on the way the drive, the sound of the engine and the contact points. I am an enthusiast petrol runs in my veins not alcho pops. Personally I am of the opinion that if BMw spent lots of money optimising the suspension for road then why mess around with it. I think after this thread I am going to return it to factory ride height with maybe some poly bushes as they last longer. |
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1992 clio 1.8 16V Good
1998 Subaru Impreza Turbo Terzo Great 1987 M3 Diamond Black Awesome (Now awesomer with Billys & Eibach) |
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off centre top mounts
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Dannyboy wrote: