i want to lower my car 1.5 to 2 inches and i was wondering what you guys were running in terms of Specific VS. Progressive? I think i want to run specific but i was wondering how much worse of ride quality they are than progressive? I also heard that since progressive aren't as stiff they give you better weight transfer to the rear than specific.....all your help, tips and ideas are welcome, THANKS!
what springs are you guys running? Specific VS. Progressive?
- Thread starter custom89stang
- Start date
Caldwell
New Member
Well, you are going for a bit different approach than I will be heading with my car... but let me tell you on what i've found.
First, of course, there is Eibach, who make typically two types of springs,
their Pro Kit, which will lower your car 1.2 to 1.5 inches, of course still giving that comfort feel, and their Sportline Springs which go from 1.5 to 2 inches.
Lower, a bit bumpier, but way more aggressive.
Me?! I own a 94 gt vert... problem is i want a 2 inch drop, and eibach don't make sportlines for gt verts to go 2 inches... just the pro kit
so now i've been looking at h&r springs...
i think they make springs go as low as 2.5 inches
First, of course, there is Eibach, who make typically two types of springs,
their Pro Kit, which will lower your car 1.2 to 1.5 inches, of course still giving that comfort feel, and their Sportline Springs which go from 1.5 to 2 inches.
Lower, a bit bumpier, but way more aggressive.
Me?! I own a 94 gt vert... problem is i want a 2 inch drop, and eibach don't make sportlines for gt verts to go 2 inches... just the pro kit
so now i've been looking at h&r springs...
i think they make springs go as low as 2.5 inches
ALMOST STOCK
Founding Member
I went with H&R’s Progressive, there plenty stiff but not bone jarring stiff in my opinion.
Personally for a daily driver I think the Specific might be to stiff. Just my $.02
Personally for a daily driver I think the Specific might be to stiff. Just my $.02
sry to steal thread but does anyone run eibach drag launch kit? im thinking about getting those, i heard they help alot on launching but i want to know how is ride quality for a daily driver and how much does it lower your car
1.5 - 2 inch drop is a lot. I guess it all depends on what you want to do; look cool, drag race or hang curves. I have always read that more than 1 inch really goofs up your steering gometry.
On my '91 LX I am using HR progressive rate (Sport models I think) They drop the car almost exactly 1 inch and to me it looks just right. Look at the Maximum Motorsports site and they have a good chart for these springs. They are good on the street and ok for auto-X.
I used to run the FMS C-springs and they were good for auto-X but to stiff for me on the street. The C ( for Comp.) are 650lb constant on the front and progressive in the back, about a 1 inch front drop, bit less rear. Cool hot rod stance on these! Some guys run 800lb or more in the front for auto-X!
I would recomend the HR sport springs and adjustable rear lower control arms so that you can get the hight just right. They have jack screws to raise or lower the back end. Wish I had them. Steeda and others make them(Max. Motorsports too).
On my '91 LX I am using HR progressive rate (Sport models I think) They drop the car almost exactly 1 inch and to me it looks just right. Look at the Maximum Motorsports site and they have a good chart for these springs. They are good on the street and ok for auto-X.
I used to run the FMS C-springs and they were good for auto-X but to stiff for me on the street. The C ( for Comp.) are 650lb constant on the front and progressive in the back, about a 1 inch front drop, bit less rear. Cool hot rod stance on these! Some guys run 800lb or more in the front for auto-X!
I would recomend the HR sport springs and adjustable rear lower control arms so that you can get the hight just right. They have jack screws to raise or lower the back end. Wish I had them. Steeda and others make them(Max. Motorsports too).
trevnut
Member
i got the eibach pro kit with specific rate springs. lowered about 1.5 inches. mine actually rides better than my buddies. he got the progressives. his went down about 2 inches though. i guess that could make the difference in the ride quality.
I have the "C" springs on the '86; 650 lbs specific rate. The struts I'm using, Monroe Formula GPs (old Saleen style), are overpowerd by these springs. Hence, the ride is pretty harsh in town. Ride is 24-3/4" front; 26" in back (ground to center of lip). I have the H&R Super Sports (progressive) on the '01 vert, with Bilsteins. Ride is 25-7/8" Front; 27" Back (ground to center of lip). However, the stuff under the car is a lot closer to the grond than the Fox - hit the k-member several times on high spots in the road. Ride in town is much nicer but that is probably because of the IRS. In my experiance, getting the right strut/shock combo with the selected springs is key to ride quality, unless you're running some pretty heave stuff.
dstanggt50
Founding Member
I have eibach progressives, lowered a little over 1 inch, looks and handles good, traction off the line suffered a little though.
runningmole
Founding Member
I have H&R Springs. Race Springs up front 750-850 lb/in and Torque Arm Springs in the rear 390-430 lb/in
