F80 M3 H&R springs/ M4 H&R Springs

Bmanny · 12-05-2014, 06:56 PM

I lowered my car with the F80 M3 specific springs 50474-6(blue springs) The back is very low. Also the ride is pretty stiff/rough. I feel everything on the road thru wheel. My friend just picked up his M4 he got the M4 H&R sport springs 50474 (red). The M4 rides much better than my springs. Less road feel softer more comfy. I notice the difference more in the back. My back is much flatter stiff. His feels soft. Plus he said his M4 stock had plenty body roll now with springs doesn't. My M3 never had body roll. So I'm guessing the M3 is stiffer chassis/suspension?

He also mention that there's 2 holes in back for spring placement/seat. He said my spring is on the lower side if it was on the other hole I will get more spring travel also said it will be alittle higher and softer?

Bmanny · 12-07-2014, 08:04 PM

Anyone? 😩

edwinm3 · 12-07-2014, 09:38 PM

Chassis is slightly stiffer on the M3, doubt you'll feel the difference but technically it is stiffer.

Bmanny · 12-07-2014, 09:40 PM

Quote:

Originally Posted by edwinm3

Chassis is slightly stiffer on the M3, doubt you'll feel the difference but technically it is stiffer.

So I guess it's the spring installation or springs in general??

edwinm3 · 12-07-2014, 09:46 PM

might wanna look and see if springs were installed correctly, never heard of two different locations were springs would sit, sounds like a possible incorrect install

Bmanny · 12-08-2014, 06:05 PM

Quote:

Originally Posted by edwinm3

might wanna look and see if springs were installed correctly, never heard of two different locations were springs would sit, sounds like a possible incorrect install

We thought it was 2 settings because the lower control arm has 2 holes for the rubber spring seat.. However we double check and the seat only can go one way (hole closer to the strut)

Bmanny · 12-08-2014, 07:40 PM

Well we figured out the problem.. The dust boot on this car is not a separate pc. So when I installed spring I pull down the boot and it the top where spring sits the rubber came off. So it was spring hitting the plastic part of strut mount.

edwinm3 · 12-08-2014, 08:07 PM

so how's the drop now? better?

Bmanny · 12-08-2014, 09:38 PM

Quote:

Originally Posted by edwinm3

so how's the drop now? better?

Still very stiff, Bouncy when in sport plus.

edwinm3 · 12-08-2014, 10:07 PM

Quote:

Originally Posted by Bmanny

Still very stiff, Bouncy when in sport plus.

bouncy = no good, poor handling

Bmanny · 12-08-2014, 10:08 PM

Quote:

Originally Posted by edwinm3

Quote:

Originally Posted by Bmanny

Still very stiff, Bouncy when in sport plus.

bouncy = no good, poor handling

Yeah thinking about sleeve kit now

edwinm3 · 12-08-2014, 10:24 PM

Quote:

Originally Posted by Bmanny

Yeah thinking about sleeve kit now

honestly, sleeve overs won't be that much more difference over springs because you're still running the stock shocks and the lower you go the worst it gets, have you considered KW V3's coilovers? They're just awesome!

Bmanny · 12-08-2014, 10:26 PM

Last time I ran coils were on my 335i and E46 M3. After bmw came with EDC I just used springs. I'm coming from a F12 M6 comp pkg. so I'm missing some comfort.

edwinm3 · 12-08-2014, 11:31 PM

Quote:

Originally Posted by Bmanny

Last time I ran coils were on my 335i and E46 M3. After bmw came with EDC I just used springs. I'm coming from a F12 M6 comp pkg. so I'm missing some comfort.

KW's are very good both on the street and very capable on the track

Bob MG · 12-24-2014, 05:41 AM

They should just ban springs outright. Fucks up the cars handling completely and the drop ratios front to rear are a fuck up also and upset balance

Retarded process indeed but then what do you expect for a $450 mod on a $80k car?

Coil overs are cheap at $2300 not sure why people opt for this shitty route and the answers are always the same. Worse handling, bouncy etc. About 50% of people who fit sprigs hate them and move to a coilover and stay sold for all future cars. The other 50% don't know how a proper car handles and are indifferent and just like the look and have no issue with the crap handling as they don't know any better

nbennettksu · 12-24-2014, 10:01 AM

shit. I just got H&R Sport and this thread makes me nervous

Bmanny · 12-24-2014, 11:14 AM

I am ready to take mine off 😩

Taimur · 12-24-2014, 11:45 AM

I'm glad I waited. I think Swift will have the best option for springs. Can't wait for those. Lol

Chipm4 · 01-01-2015, 09:06 AM

Hi does anyone know if the coupe and convertible use the same lowering spring?
I was think of ordering this part number? 28878-1

edwinm3 · 01-01-2015, 10:38 AM

Quote:

Originally Posted by Chipm4

Hi does anyone know if the coupe and convertible use the same lowering spring?
I was think of ordering this part number? 28878-1

Probably not, different rate springs, fitment will probably be the same but different part numbers due to their difference in rates, verts are heavier in the rear.

Hierlevelz · 01-01-2015, 05:14 PM

OP are you running wheel spacers? Do you think 15/20 mm spacers will fit front and rear?

Bmanny · 01-01-2015, 05:16 PM

Quote:

Originally Posted by Hierlevelz

OP are you running wheel spacers? Do you think 15/20 mm spacers will fit front and rear?

No, I was waiting till spring. I see people are running 15/18 on F80's

12-05-2014, 06:56 PM	#1
Bmanny Lieutenant 41 Rep 405 Posts Drives: Beamer Join Date: Jul 2008 Location: New York iTrader: (1)	F80 M3 H&R springs/ M4 H&R Springs I lowered my car with the F80 M3 specific springs 50474-6(blue springs) The back is very low. Also the ride is pretty stiff/rough. I feel everything on the road thru wheel. My friend just picked up his M4 he got the M4 H&R sport springs 50474 (red). The M4 rides much better than my springs. Less road feel softer more comfy. I notice the difference more in the back. My back is much flatter stiff. His feels soft. Plus he said his M4 stock had plenty body roll now with springs doesn't. My M3 never had body roll. So I'm guessing the M3 is stiffer chassis/suspension? He also mention that there's 2 holes in back for spring placement/seat. He said my spring is on the lower side if it was on the other hole I will get more spring travel also said it will be alittle higher and softer?
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12-07-2014, 08:04 PM	#2
Bmanny Lieutenant 41 Rep 405 Posts Drives: Beamer Join Date: Jul 2008 Location: New York iTrader: (1)	Anyone? 😩
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12-07-2014, 09:38 PM	#3
edwinm3 Brigadier General 974 Rep 3,998 Posts Drives: F82 Join Date: Nov 2011 Location: Broward iTrader: (32)	Chassis is slightly stiffer on the M3, doubt you'll feel the difference but technically it is stiffer. __________________ Grigio Telesto M4, 6MT. Coyote 5.0 F-150 991 GT3
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12-07-2014, 09:46 PM	#5
edwinm3 Brigadier General 974 Rep 3,998 Posts Drives: F82 Join Date: Nov 2011 Location: Broward iTrader: (32)	might wanna look and see if springs were installed correctly, never heard of two different locations were springs would sit, sounds like a possible incorrect install __________________ Grigio Telesto M4, 6MT. Coyote 5.0 F-150 991 GT3
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12-08-2014, 07:40 PM	#7
Bmanny Lieutenant 41 Rep 405 Posts Drives: Beamer Join Date: Jul 2008 Location: New York iTrader: (1)	Well we figured out the problem.. The dust boot on this car is not a separate pc. So when I installed spring I pull down the boot and it the top where spring sits the rubber came off. So it was spring hitting the plastic part of strut mount.
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12-08-2014, 08:07 PM	#8
edwinm3 Brigadier General 974 Rep 3,998 Posts Drives: F82 Join Date: Nov 2011 Location: Broward iTrader: (32)	so how's the drop now? better? __________________ Grigio Telesto M4, 6MT. Coyote 5.0 F-150 991 GT3
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12-08-2014, 10:26 PM	#13
Bmanny Lieutenant 41 Rep 405 Posts Drives: Beamer Join Date: Jul 2008 Location: New York iTrader: (1)	Last time I ran coils were on my 335i and E46 M3. After bmw came with EDC I just used springs. I'm coming from a F12 M6 comp pkg. so I'm missing some comfort.
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12-24-2014, 05:41 AM	#15
Bob MG Moderating 418 Rep 2,047 Posts Drives: like a muppet Join Date: Oct 2009 Location: Dubai iTrader: (0)	They should just ban springs outright. Fucks up the cars handling completely and the drop ratios front to rear are a fuck up also and upset balance Retarded process indeed but then what do you expect for a $450 mod on a $80k car? Coil overs are cheap at $2300 not sure why people opt for this shitty route and the answers are always the same. Worse handling, bouncy etc. About 50% of people who fit sprigs hate them and move to a coilover and stay sold for all future cars. The other 50% don't know how a proper car handles and are indifferent and just like the look and have no issue with the crap handling as they don't know any better
	Appreciate 0 Quote

12-24-2014, 11:14 AM	#17
Bmanny Lieutenant 41 Rep 405 Posts Drives: Beamer Join Date: Jul 2008 Location: New York iTrader: (1)	I am ready to take mine off 😩
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12-24-2014, 11:45 AM	#18
Taimur Second Lieutenant 21 Rep 270 Posts Drives: '15 M3 Join Date: May 2007 Location: Long Island, NY iTrader: (0)	I'm glad I waited. I think Swift will have the best option for springs. Can't wait for those. Lol
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01-01-2015, 09:06 AM	#19
Chipm4 New Member 4 Rep 28 Posts Drives: M4 convertible Join Date: Dec 2014 Location: Northern ireland iTrader: (0)	H&R M4 convertible springs Hi does anyone know if the coupe and convertible use the same lowering spring? I was think of ordering this part number? 28878-1
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01-01-2015, 05:14 PM	#21
Hierlevelz Captain 76 Rep 916 Posts Drives: 11 AW E9X M Join Date: Dec 2011 Location: ENYC iTrader: (10)	OP are you running wheel spacers? Do you think 15/20 mm spacers will fit front and rear?
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