P1 Eibach lowering Springs - differences between models

240

I recently got Bilstein B12 suspension in the C30, which is B8 shocks/struts with Eibach springs.

I got a kit for the Focus XR5 knowing that the parts are compatible with the C30, and I'm curious about whether I could have had a more significant ride drop with other springs. The front has dropped slightly I think, and i'm happy with that because any lower and it would scrape all the time. But as you can see in the above photo, the rear is still super high. I think it has settled very slightly since then but not by much.

There was discussion on the C30 Aus FB group about different springs for C30/XR5/V50 due to the different vehicle weights so I wondered if the rear would sit lower using actual C30 springs rather than XR5.

I went into The Bilstein catalogue and they list a bunch of different part numbers and weights:

C30: E10-84-011-01-22. Front axle 1140kg, rear 900kg.

XR5: E10-35-016-05-22. Front axle 1050kg, rear 915kg.

V50: E10-84-006-07-22. Front axle 1140kg, rear 1010kg.

MPS: E10-55-013-03-22. Front axle 1075kg, rear 925kg.

I was surprised by how different the front weights were between C30, XR5 and V50, I expected them to be similar having the same engine and suspension.

But aside from that, the difference in the rear axle weight rating between C30 and XR5 is only 15kg, so surely that isn't enough to cause the car to sit much higher?

I am aware that even with the Eibach kit, the rear is still expected to sit higher, but this looks pretty close to stock to me and it's meant to be a 30mm drop (maybe slightly less because I had R-design suspension before).

any ideas?

carnut222

240
https://cdn.ozvolvo.org/uploads/222/HWDIGRQZ8WJP.png
I recently got Bilstein B12 suspension in the C30, which is B8 shocks/struts with Eibach springs.
I got a kit for the Focus XR5 knowing that the parts are compatible with the C30, and I'm curious about whether I could have had a more significant ride drop with other springs. The front has dropped slightly I think, and i'm happy with that because any lower and it would scrape all the time. But as you can see in the above photo, the rear is still super high. I think it has settled very slightly since then but not by much.
There was discussion on the C30 Aus FB group about different springs for C30/XR5/V50 due to the different vehicle weights so I wondered if the rear would sit lower using actual C30 springs rather than XR5.
I went into The Bilstein catalogue and they list a bunch of different part numbers and weights:
C30: E10-84-011-01-22. Front axle 1140kg, rear 900kg.
XR5: E10-35-016-05-22. Front axle 1050kg, rear 915kg.
V50: E10-84-006-07-22. Front axle 1140kg, rear 1010kg.
MPS: E10-55-013-03-22. Front axle 1075kg, rear 925kg.
I was surprised by how different the front weights were between C30, XR5 and V50, I expected them to be similar having the same engine and suspension.
But aside from that, the difference in the rear axle weight rating between C30 and XR5 is only 15kg, so surely that isn't enough to cause the car to sit much higher?
I am aware that even with the Eibach kit, the rear is still expected to sit higher, but this looks pretty close to stock to me and it's meant to be a 30mm drop (maybe slightly less because I had R-design suspension before).
any ideas?

I'm pretty sure those weights listed are not the vehicle front and rear axle weights, they're the gross axle weights (the maximum allowable weight on each axle. I know this because a C30 only weighs about 1350 kg and if you add up the numbers in the chart you posted, it would be 2040 kg. If anything, you would want to compare kerb weight, which you can usually find online. That might give you more of an idea as to whether the springs from one car on that platform are likely to be different than another. For example, kerb weights:

C30 1331-1347 kg

2008 XR5 1366 kg

Note, the numbers vary a lot depending on source!

timbo

I fitted some eibachs to a phase 1.5 S40 during the week and it has a slightly ridiculous rake. They were made to order as they had none in stock, perhaps eibach have just dropped the ball lately with there quality?

240

Possibly, the black V50 AWD you have at the shop still has the Eibachs right, I don't remember it having much rake?

timbo

Yep it sits fairly level. Maybe you need to drive around with 100kg in the boot for a little bit

240

I think those numbers are the maximum weight that the spring is rated to.

So the c30 and xr5 springs are so close that it shouldn't make any difference in theory

c30c30

Check your front sills. I think you'll find they're pretty much at 100mm which is as low as you can legally go at the front.

240

@c30c30 as I said I'm happy with the front, but I'd be keen for the rear to sit lower to eliminate the raked look.

However I think it's probably over 100mm anyway.

hamsandwich

I had eibach springs on my xr5, the rear sat way to high aswell. In the end I had to modify the rear springs for it to sit level.

240

@hamsandwich I assume you just cut off a coil?

Did it affect handling at all?

hamsandwich

Yeh I lopped a coil off, it sat level after that, no ill effects despite it being dodgy.