Installed BMW perf kit and h&r sport springs and ride is awful. Advice needed!

Malibu1 · 01-30-2011, 02:48 PM

I was going to get coil overs but got the original Perf Dampers and yellow springs. Do I dare say that the ride is so perfect that I would be scared to now move to Coilovers and have it change.. I love the ride. Just wish it was a little lower.

Black Gold · 01-30-2011, 05:54 PM

Quote:

Originally Posted by Malibu1

I was going to get coil overs but got the original Perf Dampers and yellow springs.

Just wish it was a little lower.

That last part is why I didn't do it. Not enough differece from stock sport suspension

OnlyTruth · 01-30-2011, 10:39 PM

H&R sports are generally for truck racing not for street every day driving

cstmx_ryder · 01-31-2011, 12:07 PM

ok, this might be a stupid question.........

I have sport suspension, and from what I understand, it's about .75-1 in lower than the non sport version......

So.....If I were to get lowering springs, and the spec for the lowering springs are 1.25 in, wouldn't that be only .25-.50 in lower than my sport suspension?

Does that make sense?

TIA

dcorn · 01-31-2011, 03:01 PM

Same suspension setup here and while it's stiff, I'm betting the tires have a lot to do with it. Hopefully getting new non-RFT's soon. I don't mind how it feels, I just hate the harshness when hitting small bumps and road imperfections. There is construction EVERYWHERE in NoVa, which makes the roads almost unbearable to drive on.

jfisher160 · 01-31-2011, 03:25 PM

I had run flats and it sucks. Went to 19' inch VMR's with KW V1's dropped the front 1.5-1.7 and dropped the rear to 1.8 and the car is a totally different animal. The handle is a different world then the Run-flats. Get rid of them and you will love the car.

Black Gold · 01-31-2011, 04:22 PM

Quote:

Originally Posted by jfisher160

I had run flats and it sucks. Went to 19' inch VMR's with KW V1's dropped the front 1.5-1.7 and dropped the rear to 1.8 and the car is a totally different animal. The handle is a different world then the Run-flats. Get rid of them and you will love the car.

Can't freaking wait.

Anyone want an almost new set of oem runflats lol?

335iaz · 01-31-2011, 04:28 PM

I have the same setup as you ... frankly, with the RFT's they were really rough, now that I have non-RFT's the ride is much better .. it is still harsh but not enough to piss off my wife ... which is the true test

brocklanders · 01-31-2011, 09:03 PM

Quote:

Originally Posted by KennyPowers

Can't freaking wait.

Anyone want an almost new set of oem runflats lol?

they are 18" i will give you $400

Black Gold · 01-31-2011, 09:39 PM

Quote:

Originally Posted by brocklanders

they are 18" i will give you $400

225/255s.

450 and deal. They have ~ 2k on them ad they are one month old.

Let me know, let's work something out

FYI I'm also in houston (if you didn't know)

OnlyTruth · 01-31-2011, 09:58 PM

Any chance you have your sport springs for cheap too?

brocklanders · 01-31-2011, 09:58 PM

someone help me out i have 8.5 and 9.5" wheels will i have a problem stretching 225 and 255 run flats?

Lenaxia · 01-31-2011, 10:05 PM

Quote:

Originally Posted by brocklanders

someone help me out i have 8.5 and 9.5" wheels will i have a problem stretching 225 and 255 run flats?

This is what search turned up:
http://www.e90post.com/forums/showthread.php?t=283762

Pretty sure you won't have any problems with the 255.

Black Gold · 01-31-2011, 10:22 PM

Quote:

Originally Posted by Oleg

Any chance you have your sport springs for cheap too?

Ive got em, but a guy has expressed interest in buying them in two weeks when he gets paid.

Im going to get in touch with him today and see if he remains commited. I will let you know

brocklanders · 01-31-2011, 11:27 PM

Quote:

Originally Posted by Lenaxia

This is what search turned up:
http://www.e90post.com/forums/showthread.php?t=283762

Pretty sure you won't have any problems with the 255.

i currently run that size now my question was more about stretching the sidewall of the runflats.

OnlyTruth · 02-02-2011, 10:11 AM

Quote:

Originally Posted by KennyPowers

Ive got em, but a guy has expressed interest in buying them in two weeks when he gets paid.

Im going to get in touch with him today and see if he remains commited. I will let you know

Can you please check the numbers on springs, D7-D4 (manual) or D7-D5 (usually auto)

ROE BOT · 02-02-2011, 07:27 PM

any recomendations on tires?
i got the same issue and want to replace my run flats ASAP!!!

currently sitting on 19" OEM Factory Rims

Black Gold · 02-02-2011, 07:47 PM

Quote:

Originally Posted by ROE BOT

any recomendations on tires?
i got the same issue and want to replace my run flats ASAP!!!

currently sitting on 19" OEM Factory Rims

I am going with continental dw tires. Excellent reviews, and good price too

acerboo · 02-03-2011, 11:59 AM

Quote:

Originally Posted by MassBimmer

I would go with the OEM BMW Performance springs meant to match the Performance shocks you got

+2 its a great system and well priced

01-30-2011, 02:48 PM	#23
Malibu1 First Lieutenant 36 Rep 313 Posts Drives: Charger HC, Backdraft Cobra Join Date: Nov 2010 Location: Washington State iTrader: (2)	I was going to get coil overs but got the original Perf Dampers and yellow springs. Do I dare say that the ride is so perfect that I would be scared to now move to Coilovers and have it change.. I love the ride. Just wish it was a little lower.
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01-30-2011, 10:39 PM	#25
OnlyTruth Lieutenant 17 Rep 547 Posts Drives: 2011 535 iX Join Date: Oct 2007 Location: NY iTrader: (3)	H&R sports are generally for truck racing not for street every day driving __________________ 2011 535 iX lemoned
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01-31-2011, 12:07 PM	#26
cstmx_ryder Colonel 164 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	ok, this might be a stupid question......... I have sport suspension, and from what I understand, it's about .75-1 in lower than the non sport version...... So.....If I were to get lowering springs, and the spec for the lowering springs are 1.25 in, wouldn't that be only .25-.50 in lower than my sport suspension? Does that make sense? TIA __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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01-31-2011, 03:01 PM	#27
dcorn Captain 77 Rep 940 Posts Drives: 2008 E90 335i Join Date: Dec 2009 Location: NoVA iTrader: (2)	Same suspension setup here and while it's stiff, I'm betting the tires have a lot to do with it. Hopefully getting new non-RFT's soon. I don't mind how it feels, I just hate the harshness when hitting small bumps and road imperfections. There is construction EVERYWHERE in NoVa, which makes the roads almost unbearable to drive on.
	Appreciate 0 Quote

01-31-2011, 03:25 PM	#28
jfisher160 First Lieutenant 19 Rep 331 Posts Drives: 2012 335is Coupe Join Date: Jun 2010 Location: Thousand Oaks, CA iTrader: (3)	I had run flats and it sucks. Went to 19' inch VMR's with KW V1's dropped the front 1.5-1.7 and dropped the rear to 1.8 and the car is a totally different animal. The handle is a different world then the Run-flats. Get rid of them and you will love the car. __________________ New - 2013 - 320i - 15% Tint - Future Mods ( BMS Tune, Suspension, Wheels, Exhaust) Sold - 2007 328i (3-Stage Manifold - BMW Perf Intake w/Scoops - Powerbox - Magnaflow Exhaust - MMW Headers - KW Street Comfort - VMR 701s 19' w/M3 offset - BMW Strut Brace - 330I Brake Conversation - 5% Tint All Around - 8K HID Fog Lights -Angel Eyes)
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01-31-2011, 04:28 PM	#30
335iaz Cause their greeaaaaat!!!! 29 Rep 717 Posts Drives: SBM E90 335i Join Date: Nov 2009 Location: Peoria, AZ iTrader: (14)	I have the same setup as you ... frankly, with the RFT's they were really rough, now that I have non-RFT's the ride is much better .. it is still harsh but not enough to piss off my wife ... which is the true test __________________
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01-31-2011, 09:58 PM	#33
OnlyTruth Lieutenant 17 Rep 547 Posts Drives: 2011 535 iX Join Date: Oct 2007 Location: NY iTrader: (3)	Any chance you have your sport springs for cheap too? __________________ 2011 535 iX lemoned
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01-31-2011, 09:58 PM	#34
brocklanders Major 106 Rep 1,428 Posts Drives: the uno, mineral white Join Date: Mar 2010 Location: houston iTrader: (3) Garage List 06 325 [0.00]	someone help me out i have 8.5 and 9.5" wheels will i have a problem stretching 225 and 255 run flats?
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02-02-2011, 07:27 PM	#39
ROE BOT New Member 0 Rep 11 Posts Drives: 2007 BMW 335i Cab Join Date: Jan 2011 Location: Mississauga iTrader: (0)	any recomendations on tires? i got the same issue and want to replace my run flats ASAP!!! currently sitting on 19" OEM Factory Rims
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