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F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
The sixth generation BMW 3 Series Sedan F30/F31/F34 and the first first generation 4 Series Coupe F32/F33/F36. Get the latest 3 and 4 series pricing from our ordering and pricing guide sticky thread.

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  #51  
Old 06-06-2017, 09:17 AM
F10-N52 F10-N52 is offline
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To OP, F10 528i is still 3800+lb with relatively high CG so any aftermarket suspension mods can be hit or miss.

One option is to seek out custom tuner in your area to build a suspension setup per your spec. E.g. there is tuner here that charges few grands to run simulations of compression and rebound curves per car and/or suspension setups, and use rebuild/adjustable struts(or shocks?!?) plus finely tuned springs(not sure custom or off-the-shelf)(parts are extra costs) to improve bottom out and rebounds.

Some friends paid the prices to tune their Miatas/S2000/Muni and their rides are eerily comfy AND sporty.

The claim is that sport springs can be made soft, and soft springs can be made sporty, as parts of a system. Apparently there is science behind suspension.
100% agree. But I have read reviews on the bilstein b8 struts with eibach springs (someone slapped them onto an f10) and said that it made the car handle like a real BMW again. They also tested the ride over sh*t Canadian roads (where I live) and said the ride was comfortable to the point where passengers in his car made no mention of the vehicles new suspension. I've talked to some knowledgable people and they said that as long as you properly match the strut to a good spring, the ride will be both comfortable and sporty. Driving my car again I have decided that it's mainly the soft suspension and lack of aggressive sway bars holding back an otherwise capable (albeit heavy) chassis. I have not decided if I will get aftermarket suspension yet, but I think I will One day.

In the mean time, I am buying these adjustable front camber bushings and will be tinkering with my camber. I learned that BMW's, like most cars are setup from the factory to purposely understeer for safety reasons by adding positive camber in the front and tons of negative in the rear which often sets the car into a steady state of understeer once you turn in. Ideally, a setup with equal amounts of negative camber front to rear will result in a front axle that will almost never lean toward understeer. I will be slightly increasing positive camber in the rear, and then increase negative camber in the front axle. (Roughly -1 to -1.5 front and back) Then I MIGHT add an ever so slight amount of negative toe in the front axle to help turn in response, but I have not decided on that yet. If someone with more experience on camber/toe alignment can chime in that would be greatly appreciated.

Last edited by F10-N52; 06-06-2017 at 09:19 AM.
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  #52  
Old 06-06-2017, 09:36 AM
namelessman namelessman is offline
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Originally Posted by F10-N52 View Post
100% agree. But I have read reviews on the bilstein b8 struts with eibach springs (someone slapped them onto an f10) and said that it made the car handle like a real BMW again. They also tested the ride over sh*t Canadian roads (where I live) and said the ride was comfortable to the point where passengers in his car made no mention of the vehicles new suspension. I've talked to some knowledgable people and they said that as long as you properly match the strut to a good spring, the ride will be both comfortable and sporty. Driving my car again I have decided that it's mainly the soft suspension and lack of aggressive sway bars holding back an otherwise capable (albeit heavy) chassis. I have not decided if I will get aftermarket suspension yet, but I think I will One day.

In the mean time, I am buying these adjustable front camber bushings and will be tinkering with my camber. I learned that BMW's, like most cars are setup from the factory to purposely understeer for safety reasons by adding positive camber in the front and tons of negative in the rear which often sets the car into a steady state of understeer once you turn in. Ideally, a setup with equal amounts of negative camber front to rear will result in a front axle that will almost never lean toward understeer. I will be slightly increasing positive camber in the rear, and then increase negative camber in the front axle. (Roughly -1 to -1.5 front and back) Then I MIGHT add an ever so slight amount of negative toe in the front axle to help turn in response, but I have not decided on that yet. If someone with more experience on camber/toe alignment can chime in that would be greatly appreciated.
Yes swapping in aftermarket offerings may work, or it may not. So it can take a few iterations and $$$$$ to churn through the permutations.

Do note no aftermarket vendors(not even Dinan) have the treasure trove of data of BMW, so when BMW provides a system from the factory, the system works as a whole. When one changes out parts of the system to fine tune the system, it necessitates the re-simulation of the whole system, and no aftermarket vendor has the budgets to do so.

It is fair that one can swap in adjustable components to adjust oneself. The caveat is that the range of adjustment is limited, so again it may work, or it may not.
  #53  
Old 06-06-2017, 09:51 AM
F10-N52 F10-N52 is offline
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Yes swapping in aftermarket offerings may work, or it may not. So it can take a few iterations and $$$$$ to churn through the permutations.

Do note no aftermarket vendors(not even Dinan) have the treasure trove of data of BMW, so when BMW provides a system from the factory, the system works as a whole. When one changes out parts of the system to fine tune the system, it necessitates the re-simulation of the whole system, and no aftermarket vendor has the budgets to do so.

It is fair that one can swap in adjustable components to adjust oneself. The caveat is that the range of adjustment is limited, so again it may work, or it may not.
Hmm... yes very true. Based on what I've experienced with my vehicle, it seems like the soft suspension holds back the chassis from performing like an old school BMW and also dulls steering resonse. It's a heavy car, but it has aluminum suspension components and still has the classic BMW weight distribution which I feel can be emphasized on. Seems like the bilstein eibach combo would improve chassis response, but then you would need new sway bars to compliment the stiffer suspension, probably camber adjustments to reduce understeer, etc. Going back to what you said about everything working together as a whole, this is a complicated process. I am going to start with a camber adjustment and then decide, because the suspension is more or less okay for me since I stopped cornering aggressively (and better suited to awful Toronto roads then bilstein sport)

Last edited by F10-N52; 06-06-2017 at 09:52 AM.
  #54  
Old 06-06-2017, 09:58 AM
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Looks like I've been misinformed on what street racing is my whole life then.
Yes you have.
Glad i could school you before you do something stupid.
  #55  
Old 06-06-2017, 10:04 AM
F10-N52 F10-N52 is offline
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Yes you have.
Glad i could school you before you do something stupid.
You didn't school anyone. I've already made a stupid decision and learned from my mistake long before I ever talked to any of you on this forum.
  #56  
Old 06-06-2017, 10:22 AM
mbanks21 mbanks21 is offline
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What is the point of this thread?
  #57  
Old 06-06-2017, 11:09 AM
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The claim is that sport springs can be made soft, and soft springs can be made sporty, as parts of a system. Apparently there is science behind suspension.
Think the rock hard suspension for handling theory died along with British sports cars. Compliant & controlled will follow the road surface better everytime.
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  #58  
Old 06-06-2017, 11:49 AM
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Think the rock hard suspension for handling theory died along with British sports cars. Compliant & controlled will follow the road surface better everytime.
Agreed. I think the optimal setup for street performance is a fairly aggressive damper with somewhat compliant springs.
  #59  
Old 06-06-2017, 11:53 AM
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What is the point of this thread?
Well, it was started by F10 N52, so naturally we should be discussing how rare and exclusive his 2011 528 is, with an occasional detour into luigi (or whatever it's called) motor oil.
  #60  
Old 06-06-2017, 12:44 PM
F10-N52 F10-N52 is offline
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Rare and exclusive 528i.. ha ha.

The whole point of this thread is to discuss modifications for our BMWs but looks like many of us are having problems comphrehending what that means.
  #61  
Old 06-06-2017, 01:01 PM
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Think the rock hard suspension for handling theory died along with British sports cars. Compliant & controlled will follow the road surface better everytime.
I remember a BMW commercial from the '90s (?) that demonstrated this. It included footage of a then-new E39 5 Series (I think; maybe it was an E34) blasting along a curve on a washboard test track. The wheels were thrashing madly up and down in the wheel wells, keeping the tires planted solidly on the road, while the chassis continued on a level, unruffled trajectory. The engineer at the wheel looked positively bored.
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Last edited by Zeichen311; 06-06-2017 at 01:23 PM.
  #62  
Old 06-06-2017, 01:46 PM
namelessman namelessman is offline
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Originally Posted by bear-avhistory View Post
Think the rock hard suspension for handling theory died along with British sports cars. Compliant & controlled will follow the road surface better everytime.
A local custom tuner had videos on youtube talking about scientific framework for "the perfect ride", it can be a bit dry but quite interesting.
  #63  
Old 06-06-2017, 02:55 PM
PK2348 PK2348 is offline
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Rare and exclusive 528i.. ha ha.

The whole point of this thread is to discuss modifications for our BMWs but looks like many of us are having problems comphrehending what that means.
https://www.bimmerfest.com/forums/sho...497&highlight=

rare and exclusive indeed. your words not mine.
  #64  
Old 06-06-2017, 11:50 PM
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https://www.bimmerfest.com/forums/sho...497&highlight=

rare and exclusive indeed. your words not mine.
I seat regular flat seats in that 528, wouldn't want to do much spirited driving in them sliding all over the place.
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  #65  
Old 06-07-2017, 08:37 AM
F10-N52 F10-N52 is offline
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I seat regular flat seats in that 528, wouldn't want to do much spirited driving in them sliding all over the place.
They actually hold you in place quite well during cornerning and are much more comfortable and supportive then they look.
  #66  
Old 06-07-2017, 09:05 AM
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I see the mods deleted some posts. I'll let this thread crash and burn on its own then.
  #67  
Old 06-07-2017, 11:33 PM
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I see the mods deleted some posts. I'll let this thread crash and burn on its own then.
That happened a while go, but I think it's becoming who can troll who the best.
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  #68  
Old 06-07-2017, 11:36 PM
F10-N52 F10-N52 is offline
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I see the mods deleted some posts. I'll let this thread crash and burn on its own then.
The majority of 3 series owners make thes rest of the forum look like a bunch of assholes. This holds true for both bimmerfest and bimmerpost as well.
  #69  
Old 07-04-2017, 02:27 PM
mbanks21 mbanks21 is offline
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I see he's made yet another new user ID - Roast Beef, posting the same old **** he did before
  #70  
Old 07-04-2017, 07:33 PM
F10-N52 F10-N52 is offline
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I see he's made yet another new user ID - Roast Beef, posting the same old **** he did before
i literally wrote "an ecu reflash is preferable over a chip" and you lost it as usual. I don't see what's wrong with posting factual evidence?
  #71  
Old 07-05-2017, 08:55 AM
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They actually hold you in place quite well during cornerning and are much more comfortable and supportive then they look.
*THAN*

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  #72  
Old 07-05-2017, 11:10 AM
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*THAN*





Cmon man, this guy probably hasn't finished high school yet. Let's give him a few semesters before we expect him to carry himself like an adult.


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  #73  
Old 07-05-2017, 04:56 PM
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Cmon man, this guy probably hasn't finished high school yet. Let's give him a few semesters before we expect him to carry himself like an adult.


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We don't have to, he has been running two accounts and trolling everybody, both accounts the IP address matches, BTW, he finally got banned, but of course, doesn't mean he won't be back under another name.
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  #74  
Old 07-06-2017, 05:17 AM
mbanks21 mbanks21 is offline
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We don't have to, he has been running two accounts and trolling everybody, both accounts the IP address matches, BTW, he finally got banned, but of course, doesn't mean he won't be back under another name.
The system works! Praise Jebus!
  #75  
Old 07-06-2017, 07:20 AM
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The system works! Praise Jebus!
Like I said, he was trolling.
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