I've tried searching, but there's noting that I found on how to read the rates. On this picture, there are more than one set of numbers. How would you read these numbers? The reason I'm asking is because I'm purchasing from a local seller (Used set) and just want to know how to read the springs to make sure they are what he says they are.



ie. 500f/600r - where do you get these numbers off the springs?

 

The last section of the part number is the rate. It will be in either metric (kg-mm) or imperial (lbs-in) units.

The example spring is labeled in metric units, so you have to convert to lbs-in. Take the 75 (which is 7.5 kg-mm) and multiply it by the conversion factor, which is 5.6 (the conversion from kg-mm to lbs-in is *56). You get 420. Since ERS springs are sold in increments of 25 lbs-in, the spring pictured is roughly a 425 lbs-in spring.

The other numbers are 125mm ~= 5" free length, 64mm ~= 2.5" inner diameter. All Ground Control coilovers use 2.5" ID springs.

For a '94-01 Integra, which I assume you have, you will generally want an 8" front spring and a 7" rear spring for most applications.

 

Those are some short coils. I wouldn't go under 7" length if these are for a Civic or Integra.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">The last section of the part number is the rate. It will be in either metric (kg-mm) or imperial (lbs-in) units.

The example spring is labeled in metric units, so you have to convert to lbs-in. Take the 75 (which is 7.5 kg-mm) and multiply it by the conversion factor, which is 5.6 (the conversion from kg-mm to lbs-in is *56). You get 420. Since ERS springs are sold in increments of 25 lbs-in, the spring pictured is roughly a 425 lbs-in spring.

The other numbers are 125mm ~= 5" free length, 64mm ~= 2.5" inner diameter. All Ground Control coilovers use 2.5" ID springs.

For a '94-01 Integra, which I assume you have, you will generally want an 8" front spring and a 7" rear spring for most applications.</TD></TR></TABLE>

Thanks for your informative post. You pretty much summed it up, Thanks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gabebauman &raquo;</TD></TR><TR><TD CLASS="quote">Those are some short coils. I wouldn't go under 7" length if these are for a Civic or Integra.</TD></TR></TABLE>

So I found out the numbers:

&gt; Front: 230.64.55 = 9".2.5".311
&gt; Rear: 200.64.44 = 7.9".2.5".246

The rates seem a little on the soft side, and that's fine for me, but now I'm worried about the spring length. Are these too long? I'm planning to mate them with Koni Yellows, or KYB AGX's. I'm not planning to dump my ride, but rather just close the wheel gap between the tire and the fenders.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AlphaQup &raquo;</TD></TR><TR><TD CLASS="quote">


So I found out the numbers:

&gt; Front: 230.64.55 = 9".2.5".311
&gt; Rear: 200.64.44 = 7.9".2.5".246
</TD></TR></TABLE>

how come these numbers dont match the picture?

what car is it for and where did you get this kit?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">

how come these numbers dont match the picture?

what car is it for and where did you get this kit?</TD></TR></TABLE>

The picture is just for reference from another thread. It's going to be for a 94 LS.

 

front spring is too long then. and kinda soft.

whered you get these?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">front spring is too long then. and kinda soft.

whered you get these?</TD></TR></TABLE>

I haven't purchased them yet, that's why I'm gathering data first. Thanks for the info. If they're too long, I'm not going to get them.

 

ttt

 

I just want to know how do you read the spring rate because I have people said that the lower the spring rate the better road noise and less bouncy and the more spring rate the more bouncy. Is this right and which spring rate is very good for less bouncy that feel like stock but better?. Thanks.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdm civic ej1 &raquo;</TD></TR><TR><TD CLASS="quote">I just want to know how do you read the spring rate because I have people said that the lower the spring rate the better road noise and less bouncy and the more spring rate the more bouncy. Is this right and which spring rate is very good for less bouncy that feel like stock but better?. Thanks.</TD></TR></TABLE>

Bouncy is an underdamped condition. You can have insanely stiff springs, but paired with the correct shocks, no bounce.

The softer the spring, the more suspension compliance, the more body roll, the more brake dive, etc...

Since stock is slightly underdamped, if you want less bounce than stock, you want better shocks, not new springs.