E85M vs E86M difference I wasn't aware of

[TomK]

They have different rear anti-roll bars, never knew that. Yes I am bored, stuck on a train
e85M rear arb 21.5mm http://www.bmminiparts.com/DiagramView.aspx?DiagramId=79853&MOSP=49344
e86M rear arb 22.5mm http://www.bmminiparts.com/DiagramView.aspx?DiagramId=79853&MOSP=49422

eta I knew the dampers were different, and the springs were the same, but other than that I always thought they were identical, except the steering rack difference as well.

 

[Franzino]

The OEM alignment is also a little different…with the roadster being a little more aggressive (strange I know).

 

[TomK]

Interesting. How so? More toe out?

 

[Ed Doe]

It's to try and counter all that chassis flop

 

[breezer]

Interesting. How so? More toe out?

I'd assume less toe in.

 

[srhutch]

Roadster is lighter than the hatchback.

 

[Fishy Dave]

It's to try and counter all that chassis flop

I know you're joking but there is no detectable flex from where I sit.

 

[stevo///m3]

Roadster is lighter than the hatchback.

by 10ish kgs if I've got things right. So something like 0.6 per cent....or less than one per cent, with a rigidity figure which dwarfs that with the Coupe and all in the aid of more rain.... and significantly less stiffness than in the proper car :wink:
Stevo

 

[buzyg]

Here we go. :lol:

 

[TomK]

I should have known better :telloff:

 

[Mr Tidy]

Roadster is lighter than the hatchback.

by 10ish kgs if I've got things right. So something like 0.6 per cent....or less than one per cent, with a rigidity figure which dwarfs that with the Coupe and all in the aid of more rain.... and significantly less stiffness than in the proper car :wink:
Stevo

+1 :lol:

 

[srhutch]

Roadster is lighter than the hatchback.

by 10ish kgs if I've got things right. So something like 0.6 per cent....or less than one per cent, with a rigidity figure which dwarfs that with the Coupe and all in the aid of more rain.... and significantly less stiffness than in the proper car :wink:
Stevo

Proper car, you mean afterthought

 

[Argenta]

Springs are different too.

 

[Darren Slone]

Roadster is lighter than the hatchback.

by 10ish kgs if I've got things right. So something like 0.6 per cent....or less than one per cent, with a rigidity figure which dwarfs that with the Coupe and all in the aid of more rain.... and significantly less stiffness than in the proper car :wink:
Stevo

Proper car, you mean afterthought

Touché ! :lol:

 

[TomK]

Springs are different too.

No they're not, the dampers are though.
E86
http://www.bmminiparts.com/DiagramView.aspx?DiagramId=150967&MOSP=49422
E85
http://www.bmminiparts.com/DiagramView.aspx?DiagramId=150967&MOSP=49344
Same for the fronts too

 

[Spikey]

..... The weight difference may be less depending on how much water is sitting in the roadster roof motor well

 

[srhutch]

..... The weight difference may be less depending on how much water is sitting in the roadster roof motor well

or how much metal is lost due to the rusty hatchback

 

[Beedub]

we are sad. lol

 

[Argenta]

Springs are different too.

No they're not, the dampers are though.
E86
http://www.bmminiparts.com/DiagramView.aspx?DiagramId=150967&MOSP=49422
E85
http://www.bmminiparts.com/DiagramView.aspx?DiagramId=150967&MOSP=49344
Same for the fronts too

You sure?
According to Gerhard Richter (R&D at M-division) in Autocar 24 May 2006 "We have stiffer springs all around, revalved shock absorbers and a thicker rear antiroll bar too. The steering has a quicker rack because we reduced the ratio from 13.7 to 12.8:1, and we altered the diff to make it turn in better."

 

[MACK]

Coupes are top heavy, if they were boats they would capsize!