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      01-15-2014, 10:48 PM   #1
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Dinan springs vs AC Schnitzer springs

Pretty sure no one has either of the 1st two installed but I'm curious as to thoughts of which would be the best option to provide a modest drop but maintain everyday drive ability in M-Sport suspension:

Dinan springs + bump stops
AC Schnitzer springs
M-Performance springs

Discuss
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      01-15-2014, 11:20 PM   #2
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Wow, never even heard of ac schnitzer springs. Anyway, I'm not sure there's much info regarding those and M performance, but Dinan has officially released theirs as a 30% increase in stiffness and 20mm drop. M performance springs are 10mm drop but increase in stiffness is unknown. I would guess they will behave similarly to Dinan springs. No idea about ac schnitzer. Maybe they would be closer to H&R and Eibach?
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      01-15-2014, 11:33 PM   #3
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Go for dinan. M performance don't make sense without the matching shocks.
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      01-16-2014, 09:31 AM   #4
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Quote:
Originally Posted by momo3605 View Post
but Dinan has officially released theirs as a 30% increase in stiffness and 20mm drop.
On the official website, they have two options, one is for the 328 and the other for the 335... What's the difference? Will there be any problem on installing any of them on a base standard suspension F30 320d? I have mailed the Dinan guys but no response yet... Can anyone of you shed some light? These springs are a blessing in disguise.
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      01-16-2014, 10:07 AM   #5
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Quote:
Originally Posted by vip
Go for dinan. M performance don't make sense without the matching shocks.
Not sure whether I have m performance shocks or not as stock on my M-Sport 335...
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      01-16-2014, 10:10 AM   #6
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Quote:
Originally Posted by momo3605 View Post
Wow, never even heard of ac schnitzer springs. Anyway, I'm not sure there's much info regarding those and M performance, but Dinan has officially released theirs as a 30% increase in stiffness and 20mm drop. M performance springs are 10mm drop but increase in stiffness is unknown. I would guess they will behave similarly to Dinan springs. No idea about ac schnitzer. Maybe they would be closer to H&R and Eibach?
M performance is 20mm drop off of base.
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      01-16-2014, 10:25 AM   #7
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Quote:
Originally Posted by AdiSinghV12 View Post
On the official website, they have two options, one is for the 328 and the other for the 335... What's the difference? Will there be any problem on installing any of them on a base standard suspension F30 320d? I have mailed the Dinan guys but no response yet... Can anyone of you shed some light? These springs are a blessing in disguise.
I'm guessing that the Dinan springs were tested to go with the adaptive dampers (DHP), especially since Dinan will be coming out with Shockware to tweak those dampers to go with the springs. They could fit on the car alright but not work with the standard shocks too well.
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      01-16-2014, 10:29 AM   #8
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Quote:
Originally Posted by DesertSmokeBBQ View Post
Pretty sure no one has either of the 1st two installed but I'm curious as to thoughts of which would be the best option to provide a modest drop but maintain everyday drive ability in M-Sport suspension:

Dinan springs + bump stops
AC Schnitzer springs
M-Performance springs

Discuss
And don't forget Kelleners Sport springs. They drop 30mm F and 20mm R, but I don't know anything else about them. They don't seem to come with bump stops. They cost $399 at BavAuto.com. The KS springs come with a warranty on the part, but not on the suspension like Dinan. Typically Schnitzer provides a Dinan-type warranty with their stuff, but they charge more. Schnitzer is very popular in Europe and 'round the world, and Kelleners Sport is much better known outside the States too.
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      01-16-2014, 11:19 AM   #9
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Quote:
Originally Posted by DesertSmokeBBQ View Post
Not sure whether I have m performance shocks or not as stock on my M-Sport 335...
you have the regular msport shocks. M performance shocks are the $1400 option, that also includes the stiffer springs.
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      01-16-2014, 11:20 AM   #10
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Quote:
Originally Posted by stevehecht View Post
I'm guessing that the Dinan springs were tested to go with the adaptive dampers (DHP), especially since Dinan will be coming out with Shockware to tweak those dampers to go with the springs. They could fit on the car alright but not work with the standard shocks too well.
yeah probably not good for a non sportline/msport 328/335. They are made to work with the sportline/msport suspension only.
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      01-16-2014, 11:34 AM   #11
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Is the 20mm drop on the "M-Sport Suspension" ?? Won't the drop be much more if the car has standard base suspension??
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      01-16-2014, 01:22 PM   #12
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Quote:
Originally Posted by shivaswrath View Post
M performance is 20mm drop off of base.
Right, but the OP's sig shows an M sport so it's a 10mm drop from there, whereas the Dinan is a 20mm drop from M sport. Just trying to be consistent.
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      01-16-2014, 01:24 PM   #13
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Quote:
Originally Posted by AdiSinghV12 View Post
Is the 20mm drop on the "M-Sport Suspension" ?? Won't the drop be much more if the car has standard base suspension??
Yea, it would probably drop even more. But like said above, the springs are designed to match the sports suspension/DHP dampers :/ If you really want to go this route, you could buy a 328i M sport suspension from the classified section and then add these springs to it. Then you'll have a US spec sport suspension
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      01-17-2014, 09:11 AM   #14
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Quote:
Originally Posted by DesertSmokeBBQ
Quote:
Originally Posted by vip
Go for dinan. M performance don't make sense without the matching shocks.
Not sure whether I have m performance shocks or not as stock on my M-Sport 335...
The MPS shocks are $1000 you'd notice that!
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      01-17-2014, 09:18 AM   #15
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Quote:
Originally Posted by shivaswrath
Quote:
Originally Posted by DesertSmokeBBQ
Quote:
Originally Posted by vip
Go for dinan. M performance don't make sense without the matching shocks.
Not sure whether I have m performance shocks or not as stock on my M-Sport 335...
The MPS shocks are $1000 you'd notice that!
So, Dinan springs and stock M-Sport shocks for ~$550+ install or MPS springs + shocks for ~$1400 + install........ Is ~3x the cost worth it in terms of maintaining DD ability with "factory" ride quality while tightening things up just a bit (reducing body roll, acceleration lift etc)
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      01-17-2014, 09:51 AM   #16
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Quote:
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Go for dinan. M performance don't make sense without the matching shocks.
+1.
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      03-01-2014, 09:18 PM   #17
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I very much would like to see a comparo between the newly-released Dinan spring set and the AC Schnitzer springs already available for the F30. But I suppose we'll have to wait until Shockware is released and then the full Dinan "kit" will be compared to the full Schnitzer kit. If you have DHP and any interest in Shockware it would not make sense to buy non-Dinan springs at this time since no doubt Dinan is at this very moment carefully calibrating their spring sets with the soon-to-be-released Shockware software.
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      03-02-2014, 05:15 PM   #18
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Quote:
Originally Posted by stevehecht
I very much would like to see a comparo between the newly-released Dinan spring set and the AC Schnitzer springs already available for the F30. But I suppose we'll have to wait until Shockware is released and then the full Dinan "kit" will be compared to the full Schnitzer kit. If you have DHP and any interest in Shockware it would not make sense to buy non-Dinan springs at this time since no doubt Dinan is at this very moment carefully calibrating their spring sets with the soon-to-be-released Shockware software.
Except that Dinan STILL doesn't have ECU access to upload Shockware....
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      03-02-2014, 05:33 PM   #19
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Quote:
Originally Posted by DesertSmokeBBQ View Post
Except that Dinan STILL doesn't have ECU access to upload Shockware....
I've heard rumblings on the boards that they recently made a big step forward with ECU access for the F30 engine tunes. No? Yes? If yes wouldn't that imply that they also have been given improved access for Shockware?
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      03-04-2014, 06:21 PM   #20
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Spoke to a Dinan rep and I was told end of May beginning of June for their tune... Not set in stone though. Won't be cheap. But I'd rather pay more and have piece of mind. About their springs, does anyone have these installed on their 328i? Would love to hear what they are like compared to the regular m sport suspension before pulling the trigger on a set.
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      03-04-2014, 07:17 PM   #21
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Originally Posted by manticor View Post
Spoke to a Dinan rep and I was told end of May beginning of June for their tune... Not set in stone though. Won't be cheap. But I'd rather pay more and have piece of mind. About their springs, does anyone have these installed on their 328i? Would love to hear what they are like compared to the regular m sport suspension before pulling the trigger on a set.
There have been a few reviews posted, mostly positive, and mostly in this particular suspension forum. Look around!
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      03-05-2014, 03:10 AM   #22
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Generally speaking AC-Schnitzer springs are spot on for normal daily driving and even track driving on street tires. Throught the different models E30-E90, they've worked very well with stock sport shocks and their own valved dampers(either sachs in E46 trim or bilstein E30 and E36). Although they're wound by eibach, they drive different, more composed and less bouncy.
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