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Old 11-02-2012, 12:46 PM   #24
Racecomp Engineering
 
Join Date: Nov 2011
Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI
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Quote:
Originally Posted by i_4got View Post
Wow, so informative! Thanks! Are there any specific brands that you would recommend? Are there certain specifications that I should look out for? For example, tires have different sizes. Is there some number I need to look at for each type of spring to understand how good they are and how much I can lower my car?

Thanks!
Well....we're obviously biased but we do have our RCE Yellow springs. We focused on function over form, but you do still get a pretty nice looking drop of 20mm.

There's a sticky at the top of the suspension forum that lists the drop of the springs that are out there. Anything over an inch IMO is too much, and as far as I know Eibach is the only other company to include shortened bumpstops besides us. That should be taken into account as well.

You'll notice most springs are much softer up front and a little stiffer in the rear than ours. This is shown as the spring rate in terms of lbs/in. Ours are 250 lbs/in front and rear. Our reasons for this stem from both theory and testing various configurations. The firmer front helps keep the car off the bumpstops and makes the car a lot easier to control under power. It's my opinion and others that a very soft front makes the car a little sloppy/floaty up front and causes the car to want to spin a little too much.

- Andrew
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