Rear arb upgrade query.

DonDP · 02-19-2018, 12:24 AM

Quote:

Originally Posted by Kal027

Quote:

Originally Posted by DonDP

I now have a 15mm bar on the rear installed (eBay special at £60 with bushes). It complements the full ACS sports suspension very well. As Tengo said it removes a little more understeer without compromising comfort.

I have to say body roll is not so much of a concern with the new suspension setup, perhaps consider switching dampers prior to roll bar changes.

Was that from a breakers ??

Any links if so

As mentioned above not sure if will keep the car more than a year -pcp, so don’t wan5 to overspend just in case

They would appear to be, the seller was 'parts_sale2016'.

Although I just searched ebay for various terms like, 'BMW Rear ARB' , 'BMW Rear Sway' and 'BMW anti roll bar'.

Then use the filter to look for used listings.

Think I may have just got lucky as I can't see any on there at the mo.

SteveChester · 02-19-2018, 01:46 PM

I got the price back from Birds today for their kit front and rear - £400+VAT!!

Does it make that much of a difference?

Kal101 · 02-19-2018, 04:25 PM

Quote:

Originally Posted by SteveChester

I got the price back from Birds today for their kit front and rear - £400+VAT!!

Does it make that much of a difference?

Would appear so.

I’m looking more to limit the body roll esp on fast bends.

Guess it just depends how much you want to spend. With any kind of mod the sky’s the limit.

Watsey · 02-19-2018, 05:00 PM

Quote:

Originally Posted by SteveChester

I got the price back from Birds today for their kit front and rear - £400+VAT!!

Does it make that much of a difference?

The Birds (H&R) bars make a huge difference - my car corners very flat.

I disagree with Tengo. I left the bars in place when I had the Ohlins Road & Track coilovers installed and they work well together. I had some concerns that bars + coilovers would be too much but the overall setup has plenty of adjustability in the damper settings.

One tip : the bar ends can touch the track rod ends when the suspension is in full droop and there's some steering lock applied. Shorter drop links are required - SuperPro make a nice adjustable set priced around £100.

Tengocity · 02-20-2018, 01:24 AM

Quote:

Originally Posted by Watsey

Quote:

Originally Posted by SteveChester

I got the price back from Birds today for their kit front and rear - £400+VAT!!

Does it make that much of a difference?

The Birds (H&R) bars make a huge difference - my car corners very flat.

I disagree with Tengo. I left the bars in place when I had the Ohlins Road & Track coilovers installed and they work well together. I had some concerns that bars + coilovers would be too much but the overall setup has plenty of adjustability in the damper settings.

One tip : the bar ends can touch the track rod ends when the suspension is in full droop and there's some steering lock applied. Shorter drop links are required - SuperPro make a nice adjustable set priced around £100.

Hence why I added that Kevin Bird has said that the ARBs have quite a different impact on xdrive v sdrive cars.

Kal101 · 02-20-2018, 05:09 AM

Well just had another quote from Bmw for the changeover.

Now they want £168 for the parts but labour has gone up from £130 to £320 -£514 depending if wheel alignment is required !!!!!

But steep - might have to try an independent

Smee · 02-20-2018, 05:19 AM

£168 for parts sounds about right.

its a paif of a job to fit. you got to lower the rear subframe which means disconnecting the brake lines etc etc

you can do it on the car just but its not easy. my mate fitted mine but was defo a 2 hour job

NISFAN · 02-20-2018, 05:39 AM

Quote:

Originally Posted by Smee

£168 for parts sounds about right.

its a paif of a job to fit. you got to lower the rear subframe which means disconnecting the brake lines etc etc

you can do it on the car just but its not easy. my mate fitted mine but was defo a 2 hour job

Erm, no you don't. No brake lines need disconnecting.

From memory- Support chassis, remove wheels, remove front subframe brackets, undo ARB links, loosen but do not remove rear subframe bolts. Remove front subframe bolts and lower front edge down enough to get access to saddle clamps. Remove those and extract ARB. Refit reverse order.

I did in 2 hours on my drive. A workshop should take 1.5 max.

Smee · 02-20-2018, 05:53 AM

which is what I said but I bet bmw will charge to remove the subframe

Kal101 · 02-20-2018, 07:10 AM

Glad I double checked with them to get a firmish quote - initially I was advised it’s only 4 bolts shouldn’t take more than an hour or so.

Just think the potential extra £200 for wheel alignment is a bit heavy though.

Might try an independent see what they quote.

Would be tempted if I knew I was keeping for more than a year - as that’s when pcp expires and still unsure if keeping or upgrading.

NISFAN · 02-20-2018, 07:21 AM

Quote:

Originally Posted by Kal027

Glad I double checked with them to get a firmish quote - initially I was advised it’s only 4 bolts shouldn’t take more than an hour or so.

Just think the potential extra £200 for wheel alignment is a bit heavy though.

Might try an independent see what they quote.

Would be tempted if I knew I was keeping for more than a year - as that’s when pcp expires and still unsure if keeping or upgrading.

I didn't do a wheel alignment after. You don't upset any of the parts that would affect the wishbone geometry, so providing the subframe is located correctly nothing should move.

DonDP · 02-20-2018, 06:24 PM

Quote:

Originally Posted by Kal027

Glad I double checked with them to get a firmish quote - initially I was advised it’s only 4 bolts shouldn’t take more than an hour or so.

Just think the potential extra £200 for wheel alignment is a bit heavy though.

Might try an independent see what they quote.

Would be tempted if I knew I was keeping for more than a year - as that’s when pcp expires and still unsure if keeping or upgrading.

An independent fitted mine.

I had a service (vehicle inspection and oil change), install of ARB and custom geometry applied for a grand total of £500.

Kal101 · 02-21-2018, 04:46 PM

Quote:

Originally Posted by DonDP

An independent fitted mine.

I had a service (vehicle inspection and oil change), install of ARB and custom geometry applied for a grand total of £500.

That’s not bad.

Don’t suppose the indie you used is round Bham way ??

DonDP · 02-21-2018, 04:50 PM

Quote:

Originally Posted by Kal027

Quote:

Originally Posted by DonDP

An independent fitted mine.

I had a service (vehicle inspection and oil change), install of ARB and custom geometry applied for a grand total of Â£500.

ThatÂ’s not bad.

DonÂ’t suppose the indie you used is round Bham way ??

It was Deutsche Tech in Milton Keynes. https://www.deutschtech.co.uk/

Bit of a trek for you but they have courtesy cars. They did all of that to mine within the day.

NISFAN · 06-20-2018, 03:13 PM

Anyone interested in the 15mm ARB upgrade, I have one for sale in classifieds.

Kal101 · 06-20-2018, 05:30 PM

Quote:

Originally Posted by NISFAN

Anyone interested in the 15mm ARB upgrade, I have one for sale in classifieds.

I’ve bought and fitted one now.

Good upgrade.

Are you on the f30 Facebook page as there were a couple interested on there when I posted about my upgrade ?

02-19-2018, 01:46 PM	#24
SteveChester Brigadier General 2472 Rep 4,653 Posts Drives: F82 M4 Join Date: Oct 2009 Location: Chester iTrader: (0) Garage List 2014 BMW F82 M4 [0.00]	I got the price back from Birds today for their kit front and rear - £400+VAT!! Does it make that much of a difference? __________________ Steve Roberts UK F82 M4 I'm running the 2024 London Marathon for the British Forces Foundation - https://www.justgiving.com/fundraising/sr5/
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02-20-2018, 05:09 AM	#28
Kal101 Major General 3105 Rep 7,031 Posts Drives: 335xd Msport + Join Date: Jan 2014 Location: West mids!!!! iTrader: (0) Garage List 2015 Bmw msport + 3 ... [0.00]	Well just had another quote from Bmw for the changeover. Now they want £168 for the parts but labour has gone up from £130 to £320 -£514 depending if wheel alignment is required !!!!! But steep - might have to try an independent __________________
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02-20-2018, 05:19 AM	#29
Smee Colonel 505 Rep 2,152 Posts Drives: BMW M4 F83 Join Date: Aug 2016 Location: Norfolk iTrader: (0)	£168 for parts sounds about right. its a paif of a job to fit. you got to lower the rear subframe which means disconnecting the brake lines etc etc you can do it on the car just but its not easy. my mate fitted mine but was defo a 2 hour job __________________ 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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02-20-2018, 05:53 AM	#31
Smee Colonel 505 Rep 2,152 Posts Drives: BMW M4 F83 Join Date: Aug 2016 Location: Norfolk iTrader: (0)	which is what I said but I bet bmw will charge to remove the subframe __________________ 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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02-20-2018, 07:10 AM	#32
Kal101 Major General 3105 Rep 7,031 Posts Drives: 335xd Msport + Join Date: Jan 2014 Location: West mids!!!! iTrader: (0) Garage List 2015 Bmw msport + 3 ... [0.00]	Glad I double checked with them to get a firmish quote - initially I was advised it’s only 4 bolts shouldn’t take more than an hour or so. Just think the potential extra £200 for wheel alignment is a bit heavy though. Might try an independent see what they quote. Would be tempted if I knew I was keeping for more than a year - as that’s when pcp expires and still unsure if keeping or upgrading. __________________
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06-20-2018, 03:13 PM	#37
NISFAN Major General 3487 Rep 9,709 Posts Drives: BMW M2 Join Date: Aug 2012 Location: Bedford UK iTrader: (0)	Anyone interested in the 15mm ARB upgrade, I have one for sale in classifieds.
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