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      06-24-2011, 10:09 AM   #23
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I was in the exact same position of you now. 312 in ferric grey on AW F10 = hard to refuse. That's why I now end up with another set of oem wheels (19"). But oh boy... running 20" + lower springs = win!!!

My opinion,
From 19" to 20" with the width, same brand of tires, and "correct" pressure, I would say at least 10% firmer. This is due to 5% different in tire profiles (40 vs 35) + "maybe" 5% from sidewall stiffness/flex.

And don't forget, if you go 20", you will want to lower your car. That would further reduce the comfort. All in all, you should be looking at least 20% harsher ride.
Thx! I really wanna get the 312 ferric grey on my AW F10, but I don't wanna lower my car and give up further comfort. Will it look weird on 20" if I keep the original height? Or any other issues may raise?
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      06-24-2011, 10:29 AM   #24
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Originally Posted by fC8 View Post
Thx! I really wanna get the 312 ferric grey on my AW F10, but I don't wanna lower my car and give up further comfort. Will it look weird on 20" if I keep the original height? Or any other issues may raise?
True, swapping to lowering springs may be harsher than the OEM springs. For what I have, which is H&R sport springs, I say about 10-15% harsher. The stock stock is way to comfort anyway, after the swap it is still better than most cars. One major factor for swapping lowering springs is reduced body roll. The stock suspension without electronic damper and stabilizer is way too soft. My family members complained they felt sick when I drove on twisty roads. After having the H&R, no more complaints.

So it's give and take, you loose a bit of comfort driving on imperfect roads. But you get more comfort for cornering. You make the call.
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      06-24-2011, 10:36 AM   #25
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Quote:
Originally Posted by fC8 View Post
Thx! I really wanna get the 312 ferric grey on my AW F10, but I don't wanna lower my car and give up further comfort. Will it look weird on 20" if I keep the original height? Or any other issues may raise?
Nothing else than looking weird. But it look less weird going with 20" OEM compared to aftermarket wheels with aggressive offset without any lowering. This is due to oem offsets position the wheels inside fenders. Most aftermarket doing aggressive offsets for better looking stance (when lowered). Example, MORR fixed offset: 20x9 ET23 fr, 20x10 ET38 rr, HRE (recommended, but can be customized): 20x9 ET27, 20x10 ET39.

In case you dare to experiment ( I don't ), use m sport spring only to lower the car by 10mm. This gives the best balance. You can see here for car with complete m sport suspension: http://f10.5post.com/forums/showthre...=507779&page=4

If you did this, I'm dying to know how it feel. Here are the part number for m sport 528i springs: front 31336795428 and rear spring 33536795436.
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      06-24-2011, 10:47 AM   #26
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fC8, I noticed you are from Hongkong. I've been there regularly (mostly Hongkong side). Eventhough the road is not as nice as Singapore, I think you can pull 20" lowered and still get "acceptable" comfort. Lower profile tires only gives you problem running over bumps and road irregularities, I don't see that much in Hongkong. Or have I been to the wrong sides of the town all this time?
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      06-24-2011, 10:52 AM   #27
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Quote:
Originally Posted by fC8 View Post
Thx! I really wanna get the 312 ferric grey on my AW F10, but I don't wanna lower my car and give up further comfort. Will it look weird on 20" if I keep the original height? Or any other issues may raise?
Try Eibachs
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      06-24-2011, 11:00 AM   #28
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Originally Posted by fC8 View Post
Thx! I really wanna get the 312 ferric grey on my AW F10, but I don't wanna lower my car and give up further comfort. Will it look weird on 20" if I keep the original height? Or any other issues may raise?
Or H&R. Hehe.
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      06-24-2011, 11:03 AM   #29
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Originally Posted by pyramid View Post
fC8, I noticed you are from Hongkong. I've been there regularly (mostly Hongkong side). Eventhough the road is not as nice as Singapore, I think you can pull 20" lowered and still get "acceptable" comfort. Lower profile tires only gives you problem running over bumps and road irregularities, I don't see that much in Hongkong. Or have I been to the wrong sides of the town all this time?
yeah fC8. Look in the asia section and you'll see many threads about lowering springs.

But it's very subjective. You make you own call. Someone may say we are just trash talking.
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      06-24-2011, 11:05 AM   #30
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Quote:
Originally Posted by pyramid View Post
Nothing else than looking weird. But it look less weird going with 20" OEM compared to aftermarket wheels with aggressive offset without any lowering. This is due to oem offsets position the wheels inside fenders. Most aftermarket doing aggressive offsets for better looking stance (when lowered). Example, MORR fixed offset: 20x9 ET23 fr, 20x10 ET38 rr, HRE (recommended, but can be customized): 20x9 ET27, 20x10 ET39.

In case you dare to experiment ( I don't ), use m sport spring only to lower the car by 10mm. This gives the best balance. You can see here for car with complete m sport suspension: http://f10.5post.com/forums/showthre...=507779&page=4

If you did this, I'm dying to know how it feel. Here are the part number for m sport 528i springs: front 31336795428 and rear spring 33536795436.
Are these the MORR wheels you are refering to with ET23 and ET38, the one that was shown on Lacster's F10 at Bimmerfest?



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      06-24-2011, 11:15 AM   #31
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@remmib > No, I asked MORR directly. Maybe Lacster can gives us more info on that show wheels.

Edit: Yes, that VS8.2 are the wheels I'm referring to about the offsets.

Last edited by pyramid; 06-24-2011 at 11:28 AM..
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      06-25-2011, 06:05 AM   #32
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new pic of my car, maybe I will buy vorsteiner bodykit later when available
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      06-25-2011, 08:40 AM   #33
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I would love to try the M suspension on my 528i, but I don't think I can do that at this moment. I m currently driving a 135i, and my wife keeps complaining the car is too bouncy since she is pregnant, and that's why I gota sell it and buy a larger and comfort car 528i. I worry if I lower it by M suspension, and it will become same as the 135i's suspension setting, and if my wife notices, I will die.....!

But if it doesn't affect much on it's comfort, I definitely will put on the M suspension. Now, I can only focus on improving the car's outlooking, rather than any performance issue lead a trade off of its comfort.

BTW, I think HK's road condition ain't bad, I enjoy driving my 135i anywhere in HK. But my wife (and my baby) doesn't agree.......
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      06-25-2011, 09:23 AM   #34
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Quote:
Originally Posted by fC8 View Post
I would love to try the M suspension on my 528i, but I don't think I can do that at this moment. I m currently driving a 135i, and my wife keeps complaining the car is too bouncy since she is pregnant, and that's why I gota sell it and buy a larger and comfort car 528i. I worry if I lower it by M suspension, and it will become same as the 135i's suspension setting, and if my wife notices, I will die.....!

But if it doesn't affect much on it's comfort, I definitely will put on the M suspension. Now, I can only focus on improving the car's outlooking, rather than any performance issue lead a trade off of its comfort.

BTW, I think HK's road condition ain't bad, I enjoy driving my 135i anywhere in HK. But my wife (and my baby) doesn't agree.......
No worries, I have a F10 with M suspension and 20"alloys.(Look at the pic on page one)
I drove a 120d for half a year, a very bouncy car(on 17"RFTs) My F10 is way more comfy than a 1 series ever will be. Seriously.
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      06-25-2011, 09:30 AM   #35
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Quote:
Originally Posted by fC8 View Post
I would love to try the M suspension on my 528i, but I don't think I can do that at this moment. I m currently driving a 135i, and my wife keeps complaining the car is too bouncy since she is pregnant, and that's why I gota sell it and buy a larger and comfort car 528i. I worry if I lower it by M suspension, and it will become same as the 135i's suspension setting, and if my wife notices, I will die.....!

But if it doesn't affect much on it's comfort, I definitely will put on the M suspension. Now, I can only focus on improving the car's outlooking, rather than any performance issue lead a trade off of its comfort.

BTW, I think HK's road condition ain't bad, I enjoy driving my 135i anywhere in HK. But my wife (and my baby) doesn't agree.......
The 135's suspension is much stiffer than the F10. Even if you swap to aftermarket springs the F10 would still be way more comfy than most cars.

My suggestion is try the stock suspension first. See if you and your wife feel alright. I changed to H&R because my wife complained the stock suspension's body roll is too excessive. She wanted to puke whenever I drove on curvy roads. After the swap, no more complaints.
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      06-25-2011, 09:45 AM   #36
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Quote:
Originally Posted by fC8 View Post
I would love to try the M suspension on my 528i, but I don't think I can do that at this moment. I m currently driving a 135i, and my wife keeps complaining the car is too bouncy since she is pregnant, and that's why I gota sell it and buy a larger and comfort car 528i. I worry if I lower it by M suspension, and it will become same as the 135i's suspension setting, and if my wife notices, I will die.....!

But if it doesn't affect much on it's comfort, I definitely will put on the M suspension. Now, I can only focus on improving the car's outlooking, rather than any performance issue lead a trade off of its comfort.

BTW, I think HK's road condition ain't bad, I enjoy driving my 135i anywhere in HK. But my wife (and my baby) doesn't agree.......
fc8, I also have a 135i (convert) in Hong Kong! But I did 2 mods to the car and now it is more compliant on road imperfections, and improved handling
1) Ditch the run flats. I am running Michelin PS3, 225/40R18, 255/35R18. Way better than the RE050A run craps!
2) Koni FSD shocks! The car is not bouncy now and very comfortable driving around. But when you push it, my 135i corners way better than the stock sport suspension!

On the F10 550i, Eibach gives you a lowered look but in terms of ride quality, closest to stock (without the boat ride feeling)
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      06-25-2011, 10:57 AM   #37
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Quote:
Originally Posted by Robin Hood View Post
No worries, I have a F10 with M suspension and 20"alloys.(Look at the pic on page one)
I drove a 120d for half a year, a very bouncy car(on 17"RFTs) My F10 is way more comfy than a 1 series ever will be. Seriously.
Very good looking
That's the car outlook I want! Is it 10mm lowered?
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      06-25-2011, 11:02 AM   #38
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The 135's suspension is much stiffer than the F10. Even if you swap to aftermarket springs the F10 would still be way more comfy than most cars.

My suggestion is try the stock suspension first. See if you and your wife feel alright. I changed to H&R because my wife complained the stock suspension's body roll is too excessive. She wanted to puke whenever I drove on curvy roads. After the swap, no more complaints.
Yep, I will keep the stock suspension for awhile anyway (at least after the breaking-in), coz I worry such mod will affect the original warrantee.

BTW, I guess your wife prefer a bit more bouncy than car roll.
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      06-25-2011, 11:12 AM   #39
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Originally Posted by mlai View Post
fc8, I also have a 135i (convert) in Hong Kong! But I did 2 mods to the car and now it is more compliant on road imperfections, and improved handling
1) Ditch the run flats. I am running Michelin PS3, 225/40R18, 255/35R18. Way better than the RE050A run craps!
2) Koni FSD shocks! The car is not bouncy now and very comfortable driving around. But when you push it, my 135i corners way better than the stock sport suspension!

On the F10 550i, Eibach gives you a lowered look but in terms of ride quality, closest to stock (without the boat ride feeling)
mlai, I had my 135i changed the BMW performance multi-spoke rims with PS2 running, and keeping the stock sport suspension. I am totaly satisfied, but just wife is not.

How much are the Eibach you are using? Do you know the price diff b/w the M susp and yours?
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      06-25-2011, 11:14 AM   #40
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Originally Posted by fC8 View Post
mlai, I had my 135i changed the BMW performance multi-spoke rims with PS2 running, and keeping the stock sport suspension. I am totaly satisfied, but just wife is not.

How much are the Eibach you are using? Do you know the price diff b/w the M susp and yours?
Eibach on my F10. Fairly cheap. The set is around HKD2-2.5K
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      06-25-2011, 11:25 AM   #41
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Eibach on my F10. Fairly cheap. The set is around HKD2-2.5K
Thx
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      06-25-2011, 12:20 PM   #42
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Originally Posted by fC8 View Post
Yep, I will keep the stock suspension for awhile anyway (at least after the breaking-in), coz I worry such mod will affect the original warrantee.

BTW, I guess your wife prefer a bit more bouncy than car roll.
Haha. Actually my butt is more sensitive. I feel the H&R a bit harsher than the stock. My wife feels no difference.
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