[Jedi1972]

Hi guys. I'm getting my car lowered on H&R springs. I have a 330d m sport. The question is do I go for the sports lowering kit which lowers 30mm or the super sports kit which lowers 45mm?

Having the m sport the suspension as far as I know is 10mm lower then standard suspension so I won't see as much drop as the figures state. I also have the m performance front splitter fitted.

Anyone have either springs fitted? How's the ride and how is it over speed bumps? Any pics to see the drop would be great too. Thanks

[Dave1963]

Look at mine......Its a 4er though, but also xdrive. Mine looks great, but the ride is harsh....very harsh. Speed bumps have to be taken slowly if you don't want a slipped disc.
It does handle like a beast though, totally flat around every corner so far.
Mine is the super sport.....

[Jedi1972]

Cheers pal. Your car looks great. I'd like to achieve a similar drop but have no idea if I should go for sports or super sports as I already have the m sport suspension. I'm guessing sports would probably work and get the same kind of drop as yours.

[Smee]

Dave do you remember the part numbers for your springs? im confused between the sport and super sport

[BrennanF30]

This is mine on H&R sport springs mate.

[Bee Pee]

Originally Posted by Dave1963

Look at mine......Its a 4er though, but also xdrive. Mine looks great, but the ride is harsh....very harsh. Speed bumps have to be taken slowly if you don't want a slipped disc.
It does handle like a beast though, totally flat around every corner so far.
Mine is the super sport.....

Looks good - how much of drop with these H&R SS springs ?

Did you fit shorter bumpstops ?

If not, your harsh ride may be more to do with your car now riding more on the longer, standard bumpstops - hence little or no damper effect to help "calm" the ride.

[Smee]

depends what springs people are talking about 28832-1 is the part number of the Sport springs.. 28877-2 for Super Sport

i am on 28832-1 and not on the bump stop and is more like the ACS springs

[Dave1963]

28832-1 here, so S and not SS. Very bumpy though. I might shorten the bump stops as suggested...either that or get a spine transplant from a 21 year old.....

[Tengocity]

Originally Posted by Dave1963

28832-1 here, so S and not SS. Very bumpy though. I might shorten the bump stops as suggested...either that or get a spine transplant from a 21 year old.....

Or change your dampers to ones that can control the springs.

[Smee]

Think you lot need to man up lol

Bilstein b8 are the way forward. But i dont think the ride is that bad. Maybe I'm use to it as all my previous cars been lowered the same way

[Tengocity]

Originally Posted by Smee

Think you lot need to man up lol

Bilstein b8 are the way forward. But i dont think the ride is that bad. Maybe I'm use to it as all my previous cars been lowered the same way

It wouldn't be about the ride, more that when going fast along a bumpy British B road I'd be annoyed as hell because my car was handling like a bag of shite... I'd be worried about crashing in to the bump stops and bouncing in to the scenery!

I am totally spoiled now though having had the ACS RS on for the last 30k miles. So much so that I've just ordered new dampers for my Boxster, and it's standard ones are miles better than BMW standard ones.

[Smee]

The thing is I can't see how the acs ones are not hitting the bump stops and the hr ones are. They lower pretty much the same amount unless you got super sport.

When I checked mine I was quite far away from the bump stops and as per our conversation on email I think the issue is the shoddy dampers. I can hit single bumps fine with no issue it just can't handle the second bump it feel like the damper locks up like I'm interrupting the up cycle whilst I'm asking it to compress again.

I thought about b8s but leaning towards hr monotubes at the moment or the acs rs kit you have but I don't have adaptable suspension

[Tengocity]

Originally Posted by Smee

The thing is I can't see how the acs ones are not hitting the bump stops and the hr ones are. They lower pretty much the same amount unless you got super sport.

When I checked mine I was quite far away from the bump stops and as per our conversation on email I think the issue is the shoddy dampers. I can hit single bumps fine with no issue it just can't handle the second bump it feel like the damper locks up like I'm interrupting the up cycle whilst I'm asking it to compress again.

I thought about b8s but leaning towards hr monotubes at the moment or the acs rs kit you have but I don't have adaptable suspension

To be fair my ACS springs were done 3 years ago and Lorcan says that they've changed the spec a couple of times for the 335dx, and the car that I was in with H&R springs was a Quantum demo car that Kevin Bird had, which was also an early car. H&R may well have changed their springs since then too, and I read on another thread that LCI cars cope much better with the H&R springs than the pre-facelift ones, which suggests revised dampers.

My ACS springs never ever hit the bump stops though, but there was still quite a lot of the space between tyre and arch to ensure this.

So all in all it's quite confusing to be sure of getting the right set up, and how important it is to be honest about why you're doing it. If it's primarily looks then H&Rs look the best to me. If it's handling on a budget then I'd go ACS. If it's unlocking the true potential of the car then it has to be springs and dampers all round, because the standard dampers are crap for anyone who really wants to drive their car hard on our roads.

[Smee]

Originally Posted by Tengocity

To be fair my ACS springs were done 3 years ago and Lorcan says that they've changed the spec a couple of times for the 335dx, and the car that I was in with H&R springs was a Quantum demo car that Kevin Bird had, which was also an early car. H&R may well have changed their springs since then too, and I read on another thread that LCI cars cope much better with the H&R springs than the pre-facelift ones, which suggests revised dampers.

My ACS springs never ever hit the bump stops though, but there was still quite a lot of the space between tyre and arch to ensure this.

So all in all it's quite confusing to be sure of getting the right set up, and how important it is to be honest about why you're doing it. If it's primarily looks then H&Rs look the best to me. If it's handling on a budget then I'd go ACS. If it's unlocking the true potential of the car then it has to be springs and dampers all round, because the standard dampers are crap for anyone who really wants to drive their car hard on our roads.

well 13th your gonna be there as is Tony he has acs so we can compare and of night and day difference they will get changed but for coilovers lol

[Tengocity]

Originally Posted by Smee

well 13th your gonna be there as is Tony he has acs so we can compare and of night and day difference they will get changed but for coilovers lol

My car against anything with standard dampers is going to be night and day, so better get saving!

[Smee]

Haha already on it how much are acs rs coilovers? Monotubes are a grand

[Tengocity]

Originally Posted by Smee

Haha already on it how much are acs rs coilovers? Monotubes are a grand

ACS RS are well over £2k new, so pretty pricey.

I got mine from another forum user who swapped his 335d for a M3CP for about half price.

If I was doing it now then I'd for for Birds B3 all round or else Bilstein coilovers, as I can't imagine my car is that much better to justify that much more money.

[Smee]

Hmm I'll have a look at bilstein coilovers as well. Birds b3 is just bilsteon dampers and lowering springs correct?

If so might as well get bilstein b8 dampers and stick with hr springs

[Tengocity]

Originally Posted by Smee

Hmm I'll have a look at bilstein coilovers as well. Birds b3 is just bilsteon dampers and lowering springs correct?

If so might as well get bilstein b8 dampers and stick with hr springs

Yes, though probably better matched. In your situation then B8 dampers make complete sense. That's almost what I've ordered for my Boxster - B8 damptronics plus Eibach springs.

[Lorcan]

I have a used RS kit available, for F30 or F31 with passive dampers.

[Smee]

Ahh thank God f32 non adaptive here lol

[Tengocity]

Originally Posted by Lorcan

I have a used RS kit available, for F30 or F31 with passive dampers.

How much and do you have them set up for the 330e yet?

I'm not supposed to modify the company car but to be honest if the suspension was sorted and I could get another 50bhp out of it I'd take it over the 335d!