ELI5: Why the big front bar, and a noodle at the rear?

JJaber · 07-12-2020, 02:36 AM

For a backroad/canyon cruiser, is the FSB a good finisher? I currently have the M3 control arms, PSS9s, 235/265 Michelin PSS, Meyle HD tie rods, and dinan rear upper shock mounts. The car feels fantastic on curvy canyon roads, but I feel like its missing a few final touches. My next mods were going to be the M3 rear control arms and e93 M3 front sway bar but now I’m not so sure after reading this thread...

One thing I feel the car lacks a bit is confidence going into a turn, and that might be due to the body roll. Not necessarily a bad thing, because it remains composed through the turn but it’s more of a “whoa, I made it through this turn” and not grin inducing. I wouldn’t mind tighter steering, especially on these super twisty roads.

Tambohamilton · 07-12-2020, 03:24 AM

Probably wouldn't change much, given it's only 10% stuffer than your stock bar, if I remember rightly. It really depends what springs you're running though. Chances are you'd also want to upgrade the rear bar, at least sightly

streetpro · 07-24-2020, 03:04 AM

I have added the M3 cabrio front swaybar + M3 strut brace...
outcome is a much more balanced feeling, time to change the front shocks too as they are past their BB :-)

Tambohamilton · 07-24-2020, 03:09 AM

What have you got on the rear?

streetpro · 07-27-2020, 05:19 AM

the rear is M3 20mm... a bit overkill I think... I have commented this on page no. 2 here

Tambohamilton · 07-27-2020, 08:47 AM

Ah, yes. I'm sure that front bar would help balance things a bit then, if your front springs are also stock.

My spreadsheet, as I home in on accurate results, is showing some fairly interesting things though; with more appropriate front springs, I think I won't need a front ARB upgrade at all... Time will tell!

07-12-2020, 02:36 AM	#45
JJaber Second Lieutenant 84 Rep 256 Posts Drives: 2013 335i M-Sport Join Date: Feb 2016 Location: SF Bay Area iTrader: (0)	For a backroad/canyon cruiser, is the FSB a good finisher? I currently have the M3 control arms, PSS9s, 235/265 Michelin PSS, Meyle HD tie rods, and dinan rear upper shock mounts. The car feels fantastic on curvy canyon roads, but I feel like its missing a few final touches. My next mods were going to be the M3 rear control arms and e93 M3 front sway bar but now I’m not so sure after reading this thread... One thing I feel the car lacks a bit is confidence going into a turn, and that might be due to the body roll. Not necessarily a bad thing, because it remains composed through the turn but it’s more of a “whoa, I made it through this turn” and not grin inducing. I wouldn’t mind tighter steering, especially on these super twisty roads. Last edited by JJaber; 07-12-2020 at 11:05 AM..
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07-12-2020, 03:24 AM	#46
Tambohamilton Brigadier General 3058 Rep 3,909 Posts Drives: E91 330d Join Date: Apr 2019 Location: Herefordshire iTrader: (0)	Probably wouldn't change much, given it's only 10% stuffer than your stock bar, if I remember rightly. It really depends what springs you're running though. Chances are you'd also want to upgrade the rear bar, at least sightly
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07-24-2020, 03:04 AM	#47
streetpro Second Lieutenant 87 Rep 236 Posts Drives: e92 335iA Join Date: Nov 2018 Location: Prague iTrader: (0) Garage List 2006 Bmw e92 335iA [0.00]	I have added the M3 cabrio front swaybar + M3 strut brace... outcome is a much more balanced feeling, time to change the front shocks too as they are past their BB :-) __________________ "If everything seems under control, you're not going fast enough.” Mario Andretti
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07-24-2020, 03:09 AM	#48
Tambohamilton Brigadier General 3058 Rep 3,909 Posts Drives: E91 330d Join Date: Apr 2019 Location: Herefordshire iTrader: (0)	What have you got on the rear?
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07-27-2020, 05:19 AM	#49
streetpro Second Lieutenant 87 Rep 236 Posts Drives: e92 335iA Join Date: Nov 2018 Location: Prague iTrader: (0) Garage List 2006 Bmw e92 335iA [0.00]	the rear is M3 20mm... a bit overkill I think... I have commented this on page no. 2 here __________________ "If everything seems under control, you're not going fast enough.” Mario Andretti
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07-27-2020, 08:47 AM	#50
Tambohamilton Brigadier General 3058 Rep 3,909 Posts Drives: E91 330d Join Date: Apr 2019 Location: Herefordshire iTrader: (0)	Ah, yes. I'm sure that front bar would help balance things a bit then, if your front springs are also stock. My spreadsheet, as I home in on accurate results, is showing some fairly interesting things though; with more appropriate front springs, I think I won't need a front ARB upgrade at all... Time will tell!
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