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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-15-2004, 09:19 PM   #1
classiguy3
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Coilovers or ACS suspension?

I dont knowwhich set ot get. I have an o2 M3 cabrio and was looking for a lower ride but not to harsh. I am running 19's. I called SPP nad they gave me a price of 1400 for the FK coilover set which adjusts height and dampening. I am a bit concerned about exactly getting the rear height correct. I never did it befor and I dont want the car to ride lopsided. The plus thing about AC scnitzer suspension is that its on inch lower and no adjustment neccesary. I would rather go for the FK becasue they use koni's.I think acs uses bilsteins revalved(from what i heard) what do you guys think I should do?
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Old 01-15-2004, 10:19 PM   #2
Jeff43
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AC Schnitzer uses Eibach springs and Sachs shocks, same as oem BMW, just built to Schnitzers specs.

i was in a similar situation (with my 323), i chose the Schnitzer set up. i read a lot of threads on here, and the reviews of the Schnitzer stuff were excellent. a nice drop, excellent ride comfort, beautiful handling. one guy had tried a bunch of different set ups before settling on the Schnitzers and said that no other spring/shock combo compared. he did not try any coils though. i knew that i wasn't going to slam my car ultra low, or track it, or get involved w/corner balancing or alignments everytime i raised or lowered it, so i thought coils would be overkill.

unfortunately i haven't installed the ACS package yet, but they sure look nice in the box on my floor... once i get them in i assure you there will be plenty of pics and reviews...

try a search on : craigdobs he was the fanatic who had them in his car on 19's...he's got pics and reviews....
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Old 01-16-2004, 08:38 AM   #3
-=Stu=-
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I have the ACS Sport Suspension on my car and I've been very happy with it. The only thing which some people seem to over look is that you do loose some ride quality. I'm running 19" alloys which also contributes, but even taking that into account the ride is significantly harder than the factory Sport suspension. I'm happy to live with that and knew it would be this way before I choose the suspension, but some people want the reduction in ride height without the change in ride quality.

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Old 01-16-2004, 11:19 AM   #4
classiguy3
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I have seen alot of convertibles with the acs kit. seems like the front could be e bit lower compared to the rear?
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Old 01-16-2004, 11:40 AM   #5
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I can't see any reason for the front to be any lower, in fact it would probably be impractical. There isn't much room as it is. Both my fronts and rears have now had to be re-rolled to get all the room available from them to fit my new tyres beucase of the 'blockier' profile of Goodyear tyres.



I have a new version of my site with a new picture layout just about to go online in the next few days, but all the recent pictures like the one above are on http://www.stu.uk.com/html/convertible/latest.htm There are quite a few on there which show the supension height etc.

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Old 01-16-2004, 11:43 AM   #6
Jeff43
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i did a search for you and got these pics of the ACS set up...





before


after
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Old 01-16-2004, 12:45 PM   #7
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Oops, bad link and too late to edit :



Stuart.
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Old 01-16-2004, 07:04 PM   #8
classiguy3
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I called ground control. I can get some konis specially designed for my application. Using eibach springs I will probably have the same height of the ac setup BUT the konis and eibachs are warrantied for LIFE! acs just uses sachs shocks revalved for their specific preference. If I am gonna sepend 1500 bucks I would rather have konis with adjustable dampening. I saw a few pics of the cab and it does sit a bit higher than the coupe with the acs setup. Jay from Ground control told me that I would have a 13 1/4 inch from the center of the rim to the wheel well(front) and 13'' for the back. It will ride a bit harder BUT the suspension travel will remain stock.
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Old 01-16-2004, 07:44 PM   #9
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If suspension travel is the same as stock, but the ride height is effectively the same as the ACS kit then you won't you get rubbing even if you have them rolled ? When my suspension rebounds i.e. when the wheel is at maximum travel up into the arch, I just clear the arch by mm's. You can only squeeze a finger between the tyre and inner edge of the arch.

Stuart.
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Old 01-16-2004, 08:08 PM   #10
classiguy3
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why would you roll the wheel well? I am running 24535 19 front and 2753019 rear. It wont hit at all. Ground control knows what they are doing. I trust their judgement/.
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Old 01-16-2004, 08:10 PM   #11
-=Stu=-
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Ah you have an M3 For some reason I thought you were asking for non-M oops. Just re-read your initial post, not sure how I got confused.

Stuart.
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Old 01-17-2004, 04:47 AM   #12
johndddd
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stu's ac snitz

you have the sharpest car i have seen. your car is the cover poster for the ac schnitzer catalog i have in my deck. i was going to do that to a 3 series but opted for the M instead. i love your car better than my own. enjoy your car my friend, enjoy....................john
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