[Jadar]

Any of you fellas gone from H&R sport springs to Dinan springs on your F30? If so what is the spring rate of the dinan, is it stiffer then the H&R? I read somewhere that the H&R have same rate as OEM just lower for improved looks.

My situation with H&R sport and runflat tires was ride was bouncy hard and it seemed like I bottomed out a lot.

I ditched the RFT in favor of some Bridgestone PP s04 and they are phenominal, grip great but not the ride seems very very mushy and I get some type of tail slop especially at higher speed maneuvers, the car seems very wobbly. What can I do to fix this? Better shocks? Or is coil over the one and only solution. I hope Dinan springs will do the trick as being the cheapest option.

What are your thoughts and advice?

[kromix]

What suspension do you have? MSport?

[Jadar]

Originally Posted by kromix

What suspension do you have? MSport?

Yes

[Stlthnmrdrd]

I thought of getting springs, but decided not to waste my time and get coils. I might get them installed next week.

[Jadar]

Originally Posted by Stlthnmrdrd

I thought of getting springs, but decided not to waste my time and get coils. I might get them installed next week.

The more and more I read and dig, coil overs are the only way to go. Springs aren't tuned correctly and are a waste of time and headaches.

[jinnrice]

Originally Posted by dd1981

The more and more I read and dig, coil overs are the only way to go. Springs aren't tuned correctly and are a waste of time and headaches.

I got dinans in for my xdrive 335. A lot better than stock. For what I do daily and few track days and autoX out of the year the Dinans springs with bump stops good enough for me.

[alohasurftoad]

not sure how low you want for aesthetics but if you're not x-drive the m-performance suspension is great. i just installed on my vehicle.

[Jadar]

Originally Posted by alohasurftoad

not sure how low you want for aesthetics but if you're not x-drive the m-performance suspension is great. i just installed on my vehicle.

Ya I've read it's a nice setup l, but for the money I can get coil overs. I'm RWD. I think the M perf is $1500 last I checked.

Are you still on RFT?

[alohasurftoad]

Originally Posted by dd1981

Ya I've read it's a nice setup l, but for the money I can get coil overs. I'm RWD. I think the M perf is $1500 last I checked.

Are you still on RFT?

i have 441m with bridgestone potenza s001 runflats and also have volk racing g25 with bridgestone s-04 goflats.

yes the m-performance susp is $1500. coilovers are lighter and some cost less but good coilovers (ohlins, AST, etc) cost a lot more than $1500. i also prefer with top hats such as tc kline and cks which also cost more. i wasn't interested in anything too low and fussing with ride height, ride/handling settings, numerous alignments. the m-perf is just a "one and done", "works good lasts long time" (hopefully) kind of thing.

[Jadar]

Originally Posted by alohasurftoad

i have 441m with bridgestone potenza s001 runflats and also have volk racing g25 with bridgestone s-05 goflats.

yes the m-performance susp is $1500. coilovers are lighter and some cost less but good coilovers (ohlins, AST, etc) cost a lot more than $1500. i wasn't interested in anything too low and fussing with ride height, ride/handling settings, numerous alignments. the m-perf is just a "one and done", "works good lasts long time" (hopefully) kind thing.

Yeah I'm with you on that, I had a car with coil overs before and it was a PITA adjusting and screwing with it. I have learned that tires make a huge difference especially run flats. They ride harsh and hit like a brick. Once I installed my Bridgestone S04's go flats it was much better, ride quality is superb. But the springs are now the issue. In 80+* weather tires get softer n mushy and the h&r spring rate is same as oem so I see some slop in handling and I still tend to bottom out. I may try the Dinan setup for $300 bucks and go from there.

Thanks for the input much appreciated.

[Polo08816]

Originally Posted by dd1981

Ya I've read it's a nice setup l, but for the money I can get coil overs. I'm RWD. I think the M perf is $1500 last I checked.

Are you still on RFT?

You really can't get quality coilovers for the same price as the M Performance Suspension kit. Even KW V2/V3 or Bilstein PSS10 are in the $2xxx range.

Originally Posted by alohasurftoad

i have 441m with bridgestone potenza s001 runflats and also have volk racing g25 with bridgestone s-05 goflats.

yes the m-performance susp is $1500. coilovers are lighter and some cost less but good coilovers (ohlins, AST, etc) cost a lot more than $1500. i also prefer with top hats such as tc kline and cks which also cost more. i wasn't interested in anything too low and fussing with ride height, ride/handling settings, numerous alignments. the m-perf is just a "one and done", "works good lasts long time" (hopefully) kind of thing.

+1.

The cost for Ohlins Road and Track and AST 5100s is > $3000.

I'm probably going to go with M Performance Suspension when my original Sport Suspension is worn out.

If you DD your vehicle, M Performance Suspension is the way to go unless you can deal with the turn around time of rebuilding the dampers for coilovers.

[alohasurftoad]

Originally Posted by dd1981

Yeah I'm with you on that, I had a car with coil overs before and it was a PITA adjusting and screwing with it. I have learned that tires make a huge difference especially run flats. They ride harsh and hit like a brick. Once I installed my Bridgestone S04's go flats it was much better, ride quality is superb. But the springs are now the issue. In 80+* weather tires get softer n mushy and the h&r spring rate is same as oem so I see some slop in handling and I still tend to bottom out. I may try the Dinan setup for $300 bucks and go from there.

Thanks for the input much appreciated.

if you're bottoming the strut, it may an indication that your struts have already begun to wear prematurely, typical with factory strut and lowering springs. the dinan has cut bumpstops (or you can buy your own and cut them) which may help with bottoming for the time being. it would suck to go through all of that and have problems arise. on the other hand if it all works out then you will be saving a lot, i suppose...ok, good luck with the dinan.

[Jadar]

Originally Posted by alohasurftoad

if you're bottoming the strut, it may an indication that your struts have already begun to wear prematurely, typical with factory strut and lowering springs. the dinan has cut bumpstops (or you can buy your own and cut them) which may help with bottoming for the time being. it would suck to go through all of that and have problems arise. on the other hand if it all works out then you will be saving a lot, i suppose...ok, good luck with the dinan.

They're not worn yet, its a typical side affect with any H&R sport spring with oem bump stops, its why most folks on here have long ditched the H&R spring setup and I may be the next to do so. I think for now Dinan springs are a good option for the money and everyone says they handle good and very well for the street.

BY the way mod bargains has Vogland coil overs for our cars non EDC for $900 bucks and Vogland is a great German Brand.

[XKxRome0ox]

If going with the dinan springs, the matching bumpstop is a must have?

I have m sport suspension + adaptive suspension
But I am looking for a little tighter and lower

[jinnrice]

How long did you guys wait for the springs to settle. It's been few weeks/ month for mine.
The front has a bigger gap than the rear.
I'm on dinans with bump stops.

[alohasurftoad]

Originally Posted by XKxRome0ox

If going with the dinan springs, the matching bumpstop is a must have?

I have m sport suspension + adaptive suspension
But I am looking for a little tighter and lower

the dinan bumpstops are shorter. this makes the effective length of the strut shorter. with factory bumpstops the strut is compressed by the difference in height between the factory springs and the dinan (or any lowering) springs thus reducing strut travel and is one of the causes of oem strut failure with just lowering springs.

the dinan bumpstops appear to be factory bumpstops that cut in half but i'm not sure. it's a cheap/effective way of making effective strut travel match their spring height.

it is more complex than my simple explanation so do some research.

[NICKTENN]

Originally Posted by jinnrice

How long did you guys wait for the springs to settle. It's been few weeks/ month for mine.
The front has a bigger gap than the rear.
I'm on dinans with bump stops.

Can you tell me your wheel brand & model along with size and offset? Tire sizes?

[jinnrice]

Originally Posted by NICKTENN

Can you tell me your wheel brand & model along with size and offset? Tire sizes?

Forgot the brand. I let my shop pick it for me really. CSL type with low weight 18"s. Price them for me around 2000-2300 with BF Goodrich sport comp 2/ conti dws tires. I have to check ET for you.
But wheel size
Front - 245/40r18
Rear - 275/35r18
Notes: front needs another 5mm to make it flush. Rear pokes out a little but if I go down to 265/35or 40 r 18 it should be flush. But I like the little poke.

[kzflags]

Originally Posted by dd1981

The more and more I read and dig, coil overs are the only way to go. Springs aren't tuned correctly and are a waste of time and headaches.

this.

dont waste your time with springs. i ran h&rs for 2 months in the summer, bent 3 of my wheels, felt like i was driving around a tin can; not a BMW. switched to KW street comforts and its been light and day. 0 wheel gap @ its lowest setting, and my ride quality is on par with stock.

save yourself the time and money

[bateau]

Originally Posted by kzflags

dont waste your time with springs. i ran h&rs for 2 months in the summer, bent 3 of my wheels, felt like i was driving around a tin can; not a BMW. switched to KW street comforts and its been light and day.

Which suspension did you start from - regular or sport (Option 704)?

[NICKTENN]

Originally Posted by jinnrice

Forgot the brand. I let my shop pick it for me really. CSL type with low weight 18"s. Price them for me around 2000-2300 with BF Goodrich sport comp 2/ conti dws tires. I have to check ET for you.
But wheel size
Front - 245/40r18
Rear - 275/35r18
Notes: front needs another 5mm to make it flush. Rear pokes out a little but if I go down to 265/35or 40 r 18 it should be flush. But I like the little poke.

Does Avant Garde M359 sound familiar?

[jinnrice]

Originally Posted by NICKTENN

Does Avant Garde M359 sound familiar?

Ditto!
I'm starting to like the EC-7 from apex. If you get them you should be able to fit my tire set up. But if you do track, get a square setup.