ARB

Dr Forinor · 09-14-2017, 03:56 AM

Just curious, has anyone upgraded theirs? Any thoughts on the change(s)?

Smee · 09-14-2017, 04:48 AM

i fitted the m140 rear arb to my f32 435d made a world of difference to turn in

Dr Forinor · 09-14-2017, 05:03 AM

Was it only the turn in that was affected, anything else?

Smee · 09-14-2017, 05:52 AM

just feels more planted and response is better no understeer etc etc

i also have HR springs so the car handles great now

Dr Forinor · 09-14-2017, 05:59 AM

Ah brilliant, thanks.

Tengocity · 09-14-2017, 07:58 AM

I have made a few ARB changes over the years:

from 12mm rear bar to 13mm rear bar
from 13mm rear bar to Birds ARBs
From Birds ARBs to a 15mm rear bar from M135i and back to standard front(at the same time as going from ACS springs to the full ACS RS coilovers)

Love how it is now, and would recommend the 15mm rear bar to anyone with a desire to neutralise the understeer considerably.

Dr Forinor · 09-14-2017, 09:01 AM

Excellent Tengocity, thank you.

DriveS · 09-14-2017, 03:55 PM

I have the M140i rear ARB fitted and it makes a big difference in cornering stability as other have said. (I also have ACS Spring) However the ARB has also brought another difference for me.
Before I was forever using SPORT mode as the handling in COMFORT was not up to my expectations. But now the handling in COMFORT is much better. So I now use the Gear stick left to change into sports gearing and often just leave it in COMFORT. I find the mode button selector awkward and I usually have to take eye off the road to find it. Now its much better.

Dr Forinor · 09-14-2017, 04:46 PM

Thank you DriveS, that helpful info before I decide on making the decision.

dizzy619 · 09-14-2017, 05:32 PM

I was thinking of this too the other day.... Has anyone got an uprated one for sale?

matty81 · 09-15-2017, 04:18 AM

tempted by this too, I have ACS springs but there is still a bit of body roll, does it eliminate this?

cesare87 · 09-15-2017, 04:35 AM

What's the going rate for a m140 rear ARB guys?

NISFAN · 09-15-2017, 06:44 AM

Quote:

Originally Posted by cesare87

What's the going rate for a m140 rear ARB guys?

I think I paid around the £150 mark.

Plus one to how good a mod this is.

Smee · 09-15-2017, 06:49 AM

£155 new from BMW

Ti Rich · 09-15-2017, 07:04 AM

My new 435D now has 15mm ARB as standard and i have to say body roll is a lot less that the 330D s-drive it replaced (12mm std?)

I would also say it's a good move based on that.

Tengocity · 09-15-2017, 07:17 AM

Quote:

Originally Posted by Ti Rich

My new 435D now has 15mm ARB as standard and i have to say body roll is a lot less that the 330D s-drive it replaced (12mm std?)

I would also say it's a good move based on that.

Interesting... good that BMW are paying attention to what some of us have had to do to make up for their failings.

Maybe I should bill them for my consultancy fees asa chassis engineer, and ask them for a job...

And retrospectively bill them for the work I had to do to my own car!

Dr Forinor · 09-15-2017, 09:48 AM

Can anyone give the part number required for this please?

Tengocity · 09-15-2017, 09:50 AM

This thread on the main F30 suspension forum may be useful for folks.

http://f30.bimmerpost.com/forums/sho....php?t=1418092

McBeemer · 09-15-2017, 10:07 AM

Quote:

Originally Posted by Ti Rich

My new 435D now has 15mm ARB as standard and i have to say body roll is a lot less that the 330D s-drive it replaced (12mm std?)

I would also say it's a good move based on that.

That's interesting .... I'm picking up a new 335d Touring on Monday & getting ACS springs fitted at Rossiters the following day.

Does the 335d now have 15mm ARB now too?

Ti Rich · 09-15-2017, 10:56 AM

Quote:

Originally Posted by McBeemer

That's interesting .... I'm picking up a new 335d Touring on Monday & getting ACS springs fitted at Rossiters the following day.

Does the 335d now have 15mm ARB now too?

Not sure sorry. I would try it before commiting. Mine does look high but it handles OK. Undecided on the ACS right now.

McBeemer · 09-15-2017, 12:05 PM

Quote:

Originally Posted by Ti Rich

Not sure sorry. I would try it before commiting. Mine does look high but it handles OK. Undecided on the ACS right now.

I've pushed the button & have got it all booked up!

After spending many months researching the springs to death, I'm very confident that I'll be happy with the result.

All the people on here that have helped me make the decision to spend the cash are to blame anyway ;-))) ... seriously, I know it'll be good!

It'll be a bonus if the car now comes standard with 15mm ARB's

I'm also going to keep an eye on the new adaptive Bilstein shocks that are shortly to be developed by Rossiters.

SteveChester · 09-15-2017, 12:17 PM

Quote:

Originally Posted by Smee

£155 new from BMW

What's the part number and how long does it take it get done - I think you have to drop part of the suspension?

09-14-2017, 03:56 AM	#1
Dr Forinor Captain 266 Rep 922 Posts Drives: 2015 F31 335d Join Date: Feb 2014 Location: Abrdn/Dund iTrader: (0)	ARB Just curious, has anyone upgraded theirs? Any thoughts on the change(s)? __________________ Coding. LED Front Fogs. DIY Driver Glovebox. KW Street Comfort. 15mm Rear ARB. Tarox SS Brake Lines. Motorwerks Remap. DIY Rear 12v Socket. M Performance Discs. Tarox Strada Pads. Spacers (10mm & 12mm). Head Unit USB Cable. Rear Diffuser. Rear Light Tints. Non RFTs.
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09-14-2017, 04:48 AM	#2
Smee Colonel 505 Rep 2,152 Posts Drives: BMW M4 F83 Join Date: Aug 2016 Location: Norfolk iTrader: (0)	i fitted the m140 rear arb to my f32 435d made a world of difference to turn in __________________ Current: BMW M4 F83 - Mods : Pedal Covers, LCI Stereo facia Retrofit and Carbon Rear corner covers Old: F32 435d M Sport - Mods : HR Sport Springs, 20" Veemann V-FS23 in Gun Metal, M Performance Body Kit, Pedal Covers, Eurspec CF Mirror Caps, More-BHP remap 364 BHP 741 NM, M4 Under Chassis Brace, 15mm Rear ARB, 8.8" Screen Retrofit and LCI Stereo facia Retrofit
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09-14-2017, 05:03 AM	#3
Dr Forinor Captain 266 Rep 922 Posts Drives: 2015 F31 335d Join Date: Feb 2014 Location: Abrdn/Dund iTrader: (0)	Was it only the turn in that was affected, anything else? __________________ Coding. LED Front Fogs. DIY Driver Glovebox. KW Street Comfort. 15mm Rear ARB. Tarox SS Brake Lines. Motorwerks Remap. DIY Rear 12v Socket. M Performance Discs. Tarox Strada Pads. Spacers (10mm & 12mm). Head Unit USB Cable. Rear Diffuser. Rear Light Tints. Non RFTs.
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09-14-2017, 05:52 AM	#4
Smee Colonel 505 Rep 2,152 Posts Drives: BMW M4 F83 Join Date: Aug 2016 Location: Norfolk iTrader: (0)	just feels more planted and response is better no understeer etc etc i also have HR springs so the car handles great now __________________ Current: BMW M4 F83 - Mods : Pedal Covers, LCI Stereo facia Retrofit and Carbon Rear corner covers Old: F32 435d M Sport - Mods : HR Sport Springs, 20" Veemann V-FS23 in Gun Metal, M Performance Body Kit, Pedal Covers, Eurspec CF Mirror Caps, More-BHP remap 364 BHP 741 NM, M4 Under Chassis Brace, 15mm Rear ARB, 8.8" Screen Retrofit and LCI Stereo facia Retrofit
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09-14-2017, 05:59 AM	#5
Dr Forinor Captain 266 Rep 922 Posts Drives: 2015 F31 335d Join Date: Feb 2014 Location: Abrdn/Dund iTrader: (0)	Ah brilliant, thanks. __________________ Coding. LED Front Fogs. DIY Driver Glovebox. KW Street Comfort. 15mm Rear ARB. Tarox SS Brake Lines. Motorwerks Remap. DIY Rear 12v Socket. M Performance Discs. Tarox Strada Pads. Spacers (10mm & 12mm). Head Unit USB Cable. Rear Diffuser. Rear Light Tints. Non RFTs.
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09-14-2017, 07:58 AM	#6
Tengocity General 8566 Rep 19,982 Posts Drives: 911, Cayenne Turbo, Disco 4 Join Date: Sep 2013 Location: Crieff, Perthshire, Scotland iTrader: (0)	I have made a few ARB changes over the years: from 12mm rear bar to 13mm rear bar from 13mm rear bar to Birds ARBs From Birds ARBs to a 15mm rear bar from M135i and back to standard front(at the same time as going from ACS springs to the full ACS RS coilovers) Love how it is now, and would recommend the 15mm rear bar to anyone with a desire to neutralise the understeer considerably. __________________ Current: Porsche 911 991 C4S, Porsche Cayenne Turbo, Land Rover Discovery 4. Gone...G01 X3 M40i, Cayman S 987, F31 340i, Cayman GT4, F82 M4 CP, Lotus Exige V6, G20 330e, F30 330e, Boxster S 987, F31 335d, Mini Cooper SD, E89 Z4, E90 330d 320d, E60 520d, E46 330d 320d, MX5s, E30 325i
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09-14-2017, 09:01 AM	#7
Dr Forinor Captain 266 Rep 922 Posts Drives: 2015 F31 335d Join Date: Feb 2014 Location: Abrdn/Dund iTrader: (0)	Excellent Tengocity, thank you. __________________ Coding. LED Front Fogs. DIY Driver Glovebox. KW Street Comfort. 15mm Rear ARB. Tarox SS Brake Lines. Motorwerks Remap. DIY Rear 12v Socket. M Performance Discs. Tarox Strada Pads. Spacers (10mm & 12mm). Head Unit USB Cable. Rear Diffuser. Rear Light Tints. Non RFTs.
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09-14-2017, 03:55 PM	#8
DriveS Lieutenant 220 Rep 541 Posts Drives: F30 335d Join Date: Dec 2011 Location: Newcastle iTrader: (0)	I have the M140i rear ARB fitted and it makes a big difference in cornering stability as other have said. (I also have ACS Spring) However the ARB has also brought another difference for me. Before I was forever using SPORT mode as the handling in COMFORT was not up to my expectations. But now the handling in COMFORT is much better. So I now use the Gear stick left to change into sports gearing and often just leave it in COMFORT. I find the mode button selector awkward and I usually have to take eye off the road to find it. Now its much better.
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09-14-2017, 04:46 PM	#9
Dr Forinor Captain 266 Rep 922 Posts Drives: 2015 F31 335d Join Date: Feb 2014 Location: Abrdn/Dund iTrader: (0)	Thank you DriveS, that helpful info before I decide on making the decision. __________________ Coding. LED Front Fogs. DIY Driver Glovebox. KW Street Comfort. 15mm Rear ARB. Tarox SS Brake Lines. Motorwerks Remap. DIY Rear 12v Socket. M Performance Discs. Tarox Strada Pads. Spacers (10mm & 12mm). Head Unit USB Cable. Rear Diffuser. Rear Light Tints. Non RFTs.
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09-14-2017, 05:32 PM	#10
dizzy619 Major 447 Rep 1,453 Posts Drives: F31 340i Join Date: Feb 2016 Location: bedfordshire iTrader: (0)	I was thinking of this too the other day.... Has anyone got an uprated one for sale?
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09-15-2017, 04:18 AM	#11
matty81 First Lieutenant 84 Rep 306 Posts Drives: F30 335i Join Date: Jun 2013 Location: newbury iTrader: (0)	tempted by this too, I have ACS springs but there is still a bit of body roll, does it eliminate this?
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09-15-2017, 04:35 AM	#12
cesare87 First Lieutenant 64 Rep 308 Posts Drives: 435i Join Date: Sep 2015 Location: uk iTrader: (0)	What's the going rate for a m140 rear ARB guys?
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09-15-2017, 06:49 AM	#14
Smee Colonel 505 Rep 2,152 Posts Drives: BMW M4 F83 Join Date: Aug 2016 Location: Norfolk iTrader: (0)	£155 new from BMW __________________ Current: BMW M4 F83 - Mods : Pedal Covers, LCI Stereo facia Retrofit and Carbon Rear corner covers Old: F32 435d M Sport - Mods : HR Sport Springs, 20" Veemann V-FS23 in Gun Metal, M Performance Body Kit, Pedal Covers, Eurspec CF Mirror Caps, More-BHP remap 364 BHP 741 NM, M4 Under Chassis Brace, 15mm Rear ARB, 8.8" Screen Retrofit and LCI Stereo facia Retrofit
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09-15-2017, 07:04 AM	#15
Ti Rich Major 310 Rep 1,314 Posts Drives: Porsche Macan S D Join Date: Jan 2008 Location: Dudley, West Midlands, UK iTrader: (0)	My new 435D now has 15mm ARB as standard and i have to say body roll is a lot less that the 330D s-drive it replaced (12mm std?) I would also say it's a good move based on that.
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09-15-2017, 09:48 AM	#17
Dr Forinor Captain 266 Rep 922 Posts Drives: 2015 F31 335d Join Date: Feb 2014 Location: Abrdn/Dund iTrader: (0)	Can anyone give the part number required for this please? __________________ Coding. LED Front Fogs. DIY Driver Glovebox. KW Street Comfort. 15mm Rear ARB. Tarox SS Brake Lines. Motorwerks Remap. DIY Rear 12v Socket. M Performance Discs. Tarox Strada Pads. Spacers (10mm & 12mm). Head Unit USB Cable. Rear Diffuser. Rear Light Tints. Non RFTs.
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09-15-2017, 09:50 AM	#18
Tengocity General 8566 Rep 19,982 Posts Drives: 911, Cayenne Turbo, Disco 4 Join Date: Sep 2013 Location: Crieff, Perthshire, Scotland iTrader: (0)	This thread on the main F30 suspension forum may be useful for folks. http://f30.bimmerpost.com/forums/sho....php?t=1418092 __________________ Current: Porsche 911 991 C4S, Porsche Cayenne Turbo, Land Rover Discovery 4. Gone...G01 X3 M40i, Cayman S 987, F31 340i, Cayman GT4, F82 M4 CP, Lotus Exige V6, G20 330e, F30 330e, Boxster S 987, F31 335d, Mini Cooper SD, E89 Z4, E90 330d 320d, E60 520d, E46 330d 320d, MX5s, E30 325i
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