Let's start with spring rates:
Spring---------------------Front(lb/in.)-------------Rear(lb/in.)
Stock 325i-----------------------106------------------------245
Stock 325is----------------------118------------------------265
Stock 325ix----------------------106------------------------308
Stock M3-------------------------114------------------------314
Stock M3--------------------------140------------------------250
Dinan Sport-----------------------172------------------------300
H&R OE Sport---------------------180------------------------380
H&R Sport-------------------------180------------------------380
H&R Sport (29664)---------------200------------------------285
H&R Race-------------------------315------------------------ 570
H&R Coilovers***----------------340------------------------380
Eibach Pro-Kit--------------------102-------------------------277
Eibach Race----------------------160-------------------------445
IE SIII----------------------------315-------------------------570
Koni Coilovers-------------------342-------------------------407
Cosmo Coilovers----------------450-------------------------560
Tokico----------------------------165-------------------------265
TMS J-Stock**-------------------680------------------------1026
Alpina(est.)---------------------~200-----------------------~350
FK 60/60 cup kit-----------------379--------------------------379
Vogtland Standard***--------115/197-----------------------360
Vogtland CS***---------------137/200-----------------------400
Vogtland--------------------------225--------------------------360
For coilovers, there are plenty of options as far as what spring rate you want. Companies such as GC, and BC, both allow you to choose your own rate. I would give them a call if you want custom rates...it'll depend on what your purpose is (track, DD, etc...)
I have BC coilovers, my rates are 10k/12k. It's my DD. It's stiff ;)
Here are pictures of some setups people have (take note of whether the car is an early or late model because of the differing rear arches. Late models have arches that are about an inch lower so they have less rear wheel gap but more of a perceived reverse rake than early models)
Eibach Pro-kit
Eibach Pro-kit
Eibach Race
IE3 (no pads in the front)
H&R Sport
H&R Sport
Vogtland springs with lower rear spring pads removed
M3 springs
Stage 1 Dinan
KW 60/60
Options for coilovers:
Ground Control "GC" kit
BC Racing
Cosmo
C3 Motorsport
JOM
D2
AST 4100
TCkline
NEX
Vmaxx
Ksport
Gaz
Full GC kit with shortened housings
Full GC kit with shortened housings
C3 Motorsport kit
JOM
BC
Seems like there are a lot of questions as far as what needs to be welded when installing BC coilovers...the coilover gets welded onto the knuckle like so
You first have to cut down the original strut housing so that there is only 50mm left of it
D2
Here is a pic of the cosmo coilover installation (spring perch is cut off)
Shocks
Brand/Model----F/R----Fits----------------Made For-----------Part #-----------Notes----Verified?
Bilstein Sport……Front 318is,325,i,is…….Corrado G60……………………..F4- P30-3066………..(*1)........Yes
Koni Sport....……Front 318is,325,i,is…….85-90 Golf/Jetta.……………..8611-1258-Race…….(*5).......Yes
Koni Sport………..Rear 318is,325i,is……..94-04 Mustang Exc. IRC…..8041-1186-Sport……(*2).......?
Koni Sport………..Rear 318is, 325i,is…….94-04 Mustang Exc. IRC…..8042-1134-Sport…….(*3)......?
Koni Sport………..Rear 318is, 325i,is…….87-93 Mustang, 8 cyl……….8042-1026-Sport…….(*3)......?
Koni Sport………..Front 318is, 325i,is…….Corrado G60…………………….8641-1198-Sport……..(*1).....Yes
Koni Sport (GC) Front 318is, 325i,is…….E30…………………………………..?..................... ......(*4).....Yes
Koni Sport………..Front 318is, 325i,is…….05-08 Subaru Legacy……….8610-1447-Sport……..(*6)....?
1 – Corrado G60 shock casings are shorter, thus these are used for people lowering their spring perches and running spacers under the shock. Shock casing diameter is also 6mm narrower. Custom gland nut for Bilstein Sports – # U232A1
2 – Mustang Koni Sport rear shocks are used because they are top adjustable, unlike the Koni Sport rears made for E30’s
3 – These Mustang Koni Sports are double adjustable (External Rebound and Compression), as opposed to single adjustable like the ones above.
4 – I’ve heard these Koni Sports carry the same part number as the Corrado G60 Koni Sports, however, they are “custom valved” specifically for Ground Control. Anytime I try to get more info on them from Ground Control they avoid the questions… Dimensions? Part numbers? Revalving description? Who knows, but they’re $50 more than the G60 shock.
5 - Double Adjustable (External Rebound and Compression). Shock casings are shorter, thus these are used for people lowering their spring perches and running spacers under the shock.
6 - Koni Sport top adjustable - Made for Subaru Legacy (Liberty) 2.0, 3.0, 3.0R incl. GT Wagon
There are also shocks from Tokico and KYB, but I haven't heard many good things about them
A popular set up is bilstein sports and h&r sports/race
If there's anything I should add let me know.
This is info I've compiled over awhile now, so I don't know exactly who helped me out on this...but thanks to all the photographers and others who wrote up some of the lists with part numbers. Hopefully this will help out some people.
Spring---------------------Front(lb/in.)-------------Rear(lb/in.)
Stock 325i-----------------------106------------------------245
Stock 325is----------------------118------------------------265
Stock 325ix----------------------106------------------------308
Stock M3-------------------------114------------------------314
Stock M3--------------------------140------------------------250
Dinan Sport-----------------------172------------------------300
H&R OE Sport---------------------180------------------------380
H&R Sport-------------------------180------------------------380
H&R Sport (29664)---------------200------------------------285
H&R Race-------------------------315------------------------ 570
H&R Coilovers***----------------340------------------------380
Eibach Pro-Kit--------------------102-------------------------277
Eibach Race----------------------160-------------------------445
IE SIII----------------------------315-------------------------570
Koni Coilovers-------------------342-------------------------407
Cosmo Coilovers----------------450-------------------------560
Tokico----------------------------165-------------------------265
TMS J-Stock**-------------------680------------------------1026
Alpina(est.)---------------------~200-----------------------~350
FK 60/60 cup kit-----------------379--------------------------379
Vogtland Standard***--------115/197-----------------------360
Vogtland CS***---------------137/200-----------------------400
Vogtland--------------------------225--------------------------360
For coilovers, there are plenty of options as far as what spring rate you want. Companies such as GC, and BC, both allow you to choose your own rate. I would give them a call if you want custom rates...it'll depend on what your purpose is (track, DD, etc...)
I have BC coilovers, my rates are 10k/12k. It's my DD. It's stiff ;)
Here are pictures of some setups people have (take note of whether the car is an early or late model because of the differing rear arches. Late models have arches that are about an inch lower so they have less rear wheel gap but more of a perceived reverse rake than early models)
Eibach Pro-kit
Eibach Pro-kit
Eibach Race
IE3 (no pads in the front)
H&R Sport
H&R Sport
Vogtland springs with lower rear spring pads removed
M3 springs
Stage 1 Dinan
KW 60/60
Options for coilovers:
Ground Control "GC" kit
BC Racing
Cosmo
C3 Motorsport
JOM
D2
AST 4100
TCkline
NEX
Vmaxx
Ksport
Gaz
Full GC kit with shortened housings
Full GC kit with shortened housings
C3 Motorsport kit
JOM
BC
Seems like there are a lot of questions as far as what needs to be welded when installing BC coilovers...the coilover gets welded onto the knuckle like so
You first have to cut down the original strut housing so that there is only 50mm left of it
D2
Here is a pic of the cosmo coilover installation (spring perch is cut off)
Shocks
Brand/Model----F/R----Fits----------------Made For-----------Part #-----------Notes----Verified?
Bilstein Sport……Front 318is,325,i,is…….Corrado G60……………………..F4- P30-3066………..(*1)........Yes
Koni Sport....……Front 318is,325,i,is…….85-90 Golf/Jetta.……………..8611-1258-Race…….(*5).......Yes
Koni Sport………..Rear 318is,325i,is……..94-04 Mustang Exc. IRC…..8041-1186-Sport……(*2).......?
Koni Sport………..Rear 318is, 325i,is…….94-04 Mustang Exc. IRC…..8042-1134-Sport…….(*3)......?
Koni Sport………..Rear 318is, 325i,is…….87-93 Mustang, 8 cyl……….8042-1026-Sport…….(*3)......?
Koni Sport………..Front 318is, 325i,is…….Corrado G60…………………….8641-1198-Sport……..(*1).....Yes
Koni Sport (GC) Front 318is, 325i,is…….E30…………………………………..?..................... ......(*4).....Yes
Koni Sport………..Front 318is, 325i,is…….05-08 Subaru Legacy……….8610-1447-Sport……..(*6)....?
1 – Corrado G60 shock casings are shorter, thus these are used for people lowering their spring perches and running spacers under the shock. Shock casing diameter is also 6mm narrower. Custom gland nut for Bilstein Sports – # U232A1
2 – Mustang Koni Sport rear shocks are used because they are top adjustable, unlike the Koni Sport rears made for E30’s
3 – These Mustang Koni Sports are double adjustable (External Rebound and Compression), as opposed to single adjustable like the ones above.
4 – I’ve heard these Koni Sports carry the same part number as the Corrado G60 Koni Sports, however, they are “custom valved” specifically for Ground Control. Anytime I try to get more info on them from Ground Control they avoid the questions… Dimensions? Part numbers? Revalving description? Who knows, but they’re $50 more than the G60 shock.
5 - Double Adjustable (External Rebound and Compression). Shock casings are shorter, thus these are used for people lowering their spring perches and running spacers under the shock.
6 - Koni Sport top adjustable - Made for Subaru Legacy (Liberty) 2.0, 3.0, 3.0R incl. GT Wagon
There are also shocks from Tokico and KYB, but I haven't heard many good things about them
A popular set up is bilstein sports and h&r sports/race
If there's anything I should add let me know.
This is info I've compiled over awhile now, so I don't know exactly who helped me out on this...but thanks to all the photographers and others who wrote up some of the lists with part numbers. Hopefully this will help out some people.
Comment