Which drop spring most comfortable?
I asked a similar question and got that BMR > Eibach because people say that Eibach have a "harsh" ride. I am looking into swapping out shocks + springs too so I am probably going to go with BMR over Eibach.
That said, I prefer a spring who's rates are known at all point thoughout the range of travel which is only able to be done with a linear rate spring. Also I believe in not making the springs any stiffer than is necessary. Strano Performance rear springs are 150 pounds linear.... softer than a lot of of other lowering springs are, but 25% stiffer than stock springs because you need to up the rate to compensate for the lesser travel. If you go stiffer than needed you end up with the "empty pick-up truck" action over bumps.
Eibach's rates would be fine if the springs weren't so low, and most sets lower the car more than the claimed 1.2". But they tend to end too low for the rates used. BMR's are hugely progressive so you never *truly* know where you are in terms of spring rate at any given point other than fully crushed, and their rears basically start out as stiff as my rears ever are, and only get stiffer. I mean 310-550 which is a 45% change in spring rate though the travel. Shocks are spring dampers, and the shock doesn't know that's happening (because unlike springs which are displacement sensitive, shocks are velocity dependent).
And my spring set weighs about 12-13 less than any of those springs too. Made of a different alloy (that most Nextel Cup teams are using also). Easy way to shave some weight since you want to change springs anyway.... and a lot cheaper than a k-member or control arms!
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
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I'm happy to discuss exactly what I think (and more importantly why), but I really can't do a good job of it by e-mail or PM's, etc. But you should feel 100% free to call me on my techical info line 814-849-3450, and I'll answer whatever you want. And I'm very straightforward. I'll tell you already that I'd sooner run BMR springs than QA1 shocks, but I think you can do better on both counts.
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
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That said, I prefer a spring who's rates are known at all point thoughout the range of travel which is only able to be done with a linear rate spring. Also I believe in not making the springs any stiffer than is necessary. Strano Performance rear springs are 150 pounds linear.... softer than a lot of of other lowering springs are, but 25% stiffer than stock springs because you need to up the rate to compensate for the lesser travel. If you go stiffer than needed you end up with the "empty pick-up truck" action over bumps.
Eibach's rates would be fine if the springs weren't so low, and most sets lower the car more than the claimed 1.2". But they tend to end too low for the rates used. BMR's are hugely progressive so you never *truly* know where you are in terms of spring rate at any given point other than fully crushed, and their rears basically start out as stiff as my rears ever are, and only get stiffer. I mean 310-550 which is a 45% change in spring rate though the travel. Shocks are spring dampers, and the shock doesn't know that's happening (because unlike springs which are displacement sensitive, shocks are velocity dependent).
And my spring set weighs about 12-13 less than any of those springs too. Made of a different alloy (that most Nextel Cup teams are using also). Easy way to shave some weight since you want to change springs anyway.... and a lot cheaper than a k-member or control arms!

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www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion





