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Suspension Bigger front sway bar on a roadster

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Suspension Bigger front sway bar on a roadster

Old 06-04-2018, 03:00 PM
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blue al
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Bigger front sway bar on a roadster

I found my rear end too be a bit loose this weekend, it was fun chasing a lotus on track
But felt I needed a lot of extra track width to keep on top of things

I Already have a superpro 20mm rear bar, droplinks
Bilstien B16 pss10 with the blue progressive springs and only the "free camber"

Consider it to be a daily driver with a couple of light weight track days per year,
So far that means Silverstone, and dunsfold (top gear)
Number one priority is comfort and compliance on poorly surfaced roads

I'm having to drop the front subframe anyway to fit a quaife LSD ready for some future power upgrades

My car only gets a front 22.5mm bar from the factory, I'm struggling to rationalise if it's a good opportunity to upgrade to a jcw 24mm front bar ?

Not many here it seems have gone down this road, please post if you have, or indeed gone even bigger up front...

The "factory approved" approach is to match the 24mm front with a 18.5mm upgrade to rear, so I don't feel I'm pushing way past the tried and tested yet it appears to be frowned upon as worthwhile upgrade for any fwd

Nb.. my r53 came with a 24mm front bar, on SS+ Suspension and whiteline 20mm rear and handled well on both stock and Bc/swifts
But I'm not sure if that's a reason to upgrade or stick with the 22.5mm
As I know many reduced the front if/when they increased their spring rates
With the early minis
Old 01-23-2019, 06:08 PM
Claviger is offline
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I know this is 6 months old but...

I 100% agree the 59 is incredibly tail happy compared to the hardtop, and we're not alone, Edmunds, and Motortrend noted the same effect on the 58. The roof adds nearlynnothing to stiffness and the 59 has more bracing under it, so the 58/59 are essentially identical functionally if not visually.

I'm going down the same path, 24mm FASB, 18mm RASB, JCW red springs, vorshlag camber plates, rear arms, and Koni FSDs.

I like a car that transitions quickly and flat with huge lateral grip, so will dial in 2-2.5 degrees camber all around and tune rotation with tire pressure.

Note, there is a 23.5 and a 24 mm bar, many people/sites refer to the 23.5 as a 24. The 24 was never included with the 59, but the 23.5 on the 59 and the Clubman are the same part number so the 24 mm from a Clubman should fit the 59.

The R59 comes with a weird and limited selection of suspension compements compared to the 58 or 56 from what I've been able to find.

All 59s, from what I can gather have the sport marked shocks. The springs and bars are the difference between base (22.5/16) and sport (23.5/17) suspension.

​​​​​​There is no official red spring designated for the 59, but, the 58 does have them. Find a 58 VIN with the same options/trans and order the red springs for that car. The weight difference is the weight of a young child so no need for different springs (unless you can spot less than .1" of ride height difference).... The distribution is also more front biased on the 58 by 1.2%, so, if anything it'll add a slight rake benefitting from the end grip.
Old 01-30-2019, 02:47 PM
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blue al
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Fitting 26mm superpro front bar whilst my subframe is out. I Will report back when roads and tyres are warmer,
But im afraid many other upgrades are also happening at the same time.
So it may prove somewhat difficult to attribute cause and effect further down the line.

I have a theory the front to rear weight distribution between hatch and r58/59 may explain some of the differences we have experienced.
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