Are the 93GT front spring rate heavier then 79 base.
Thanks,
Ed
Are the 93GT front spring rate heavier then 79 base.
Thanks,
Ed
According to a book i have:
1979 base non V8= 370# constant rate
1993 handling/GT/hd= 425-530 variable rate
93 front spring rate is accurate. I don't know on the 79. I believe they had less rate but were constant so more harsh which aligns with what is mentioned above .
I had a brain malfunction and was thinking load rating. Sorry LOL
Mike
Now stang-less.
88 Cougar 5.0
Found this
heres a list of common springs and their rates...
Rate(lb/in) Drop(in.)
PartNo. front rear front rear
'87 Mustang 2.3L 370 160
'87-93 Mustang 5.0 425-530 200-300
'93 Mustang Cobra 425-530 160
'93 Mustang Cobra R 750-850 240-260
'94-95 Mustang Cobra 400 160
'95 SVT Cobra R M-5310-R58 700 850
M-5560-R58 200-260
'96-98 Mustang Cobra 400-505 165-265
'99-04 Mustang V6 OEM 400 190
'99-04 Mustang GT OEM 450 210
2000 SVT Cobra R (Eibach) M-5310-R00 800
M-5560-R00 750 (IRS)
2001 SVT Cobra OE M 500 470 (IRS)
2001 Bullitt 1R3Z-5310-CA (front) 600
1R3Z-5560-AA (rear) 250 0.75 0.75 1R3C-5560-AA ?
2003 Mach 1 3R3Z-5310-AA (front) 600 3R33-5310-CA, 3R33-5310-AA ?
3R3Z-5560-AA (rear) 250 0.50 0.50 3R33-5560-BB
2003 SVT Cobra (Conv.) OEM 500 470 (IRS)
2003 SVT Cobra Coupe OEM 600 600 (IRS)
BBK Progressive BBK2510 ?? ?? 1 0.8
Dech Speeddrive 1000-1200 210-280 1.5"
Eibach Prokit 425-530 200-300 1.50 1.50
Eibach ProKit Convertible 460-570 170-310 1.5 1.5
Eibach ProKit Coupe 460-570 200-250 1.50 1.50
Eibach Racekit 700-850 200-260
Eibach Sportline 425-630 140-295 2.00 2.00
Ford Motorsports B M-5300-B 425-530 200-300 1.50 0.75
Ford Motorsports C M-5300-C 650 200-300 1.50 0.75
Ford Motorsports F M-5300-F 460-570 200-250 1.50 1.50
Ford Motorsports G (Conv.) M-5300-G 460-570 170-310 1.50 1.50
Ford Motorsports R M-5300-R 700-850 200-260
Global West 800 160 1 1
Global West Comp 1000 160 1 1
Global West Drag 680 160 1 1
H&R Cobra Convertible Race 750-850 770 (IRS)
H&R Cobra Coupe 700-760 685 (IRS)
H&R Cobra Vert Super Sport 700-760 685 (IRS)
H&R Race 750-850 260-280 1.25 1.00
H&R Sport 490-575 250-285 1.60 1.50
H&R Super Race 950-1050 260-300 1.25 1.25
H&R Super Sport Coupe 51652-77 700-760 275-300 1.75 1.60
H&R Super Sports Vert 51658-77 700-760? 275-300? 2 1.6
Intrax 2 2
Jamex 450-550 170-220 1.5 1.5
Jamex Sportsprings 425-450 180-225 1.50 1.50
Kenny Brown 650 800 (IRS) 2 1.25
MAC Progressives 450-520 200-230
MRT MRT-301 650 200-250 1.25 1.25
Progress 580 250-300 1.75 1.75
Saleen (Eibach ProKit?) 460-570 200-250
Roush Sport SM01-37X0-V8 1.50 0.80
Steeda Competition 555-8240 750-850 250 1.25 1.25
Steeda Full Comp [front] 121-4540-001 850-1050 N/A 1.50 N/A
Steeda Sport 223-9004 650 200-250 1.25 1.25
Suspension Tech Street 725 230
Suspension Tech Comp 850 280
Last edited by ThunderStruck; 05-31-2019 at 12:43 AM.
That's awesome information!
Thanks!
Trey
"I Don't build it hoping for your approval! I built it because it meets mine!"
"I've spent most of my money on Mustangs, racing, and women... the rest I just wasted."
Mustangs Past: Too many to remember!
Current Mustangs:
1969 Mach 1
1979 Pace Car now 5.0/5 speed
1982 GT Stalled RestoModification
1984 SVO Still Waiting Restoration
1986 GT Under going Wide Body Conversion Currently
Current Capris:
1981 Capri Roller
1981 Capri Black Magic Roller Basket Case
1982 Capri RS 5.0/4spd T-top Full Restoration Stalled in TX
1984 Capri RS T-top Roller
1983-84 Gloy Racing Trans Am/IMSA Body Parts
That list is mostly meaningless.
You can compare two springs against each other which are linear, but for the most part you can't compare a progressive spring to another progressive spring, or for that matter a progressive spring to a linear one.
1) Every company in that list uses different criteria to define the points at which the high and low rates are defined for their low and high spring rates. For example H&R uses ride height for the low rate and 2" of bump travel as the high rate. Eibach uses full droop travel as the low rate and ride height as the high rate.
2) In addition, every company uses a different front and rear spring load to define ride height. With progressive springs this makes it impossible to compare springs between manufacturers.
Jack Hidley
Maximum Motorsports Tech Support
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