igone916

I just bought some used ground control and I don't know which spring goes in the front and the rear...here are the numbers on the springs...

GC 180.64.44 and GC 200.64.58

Can someone tell me which one goes in the front and which goes in the back...The person I bought it from said it was from a Del Sol....

sting94112

GC 200.64.58 in the front

AmginE

How do I tell what my spring rates are?
Ground Control sells Eibach Race Springs (ERS) which are labelled by 3 different values in the following convention: length . diameter . spring rate. However, ERS will come labelled in either Metric (mm.mm.N/m) or English (inchx100.inchx100.lbs/inch) units. 180.64.61 is the same thing as 700.250.350. The conversion from Metric to English is (/.254, /.254, x5.7) "/" means "divide by", "x" means "multiply by

edit: Taken from the RR/AC forum FAQ (written by Tyson)

igone916

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sting94112 &raquo;</TD></TR><TR><TD CLASS="quote">GC 200.64.58 in the front </TD></TR></TABLE>

Cool thanks, but why is the longer ones in the front...my a stupid question but I would expect it to be in the rear...

sting94112

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by igone916 &raquo;</TD></TR><TR><TD CLASS="quote">

Cool thanks, but why is the longer ones in the front...my a stupid question but I would expect it to be in the rear...</TD></TR></TABLE>front is heavier

namechangeagain

200 in front...its the stronger spring cuz the front end is heavier.....plus its longer

slammed_93_hatch

not always true there is the "jdm" spring rate thing. with the heavier rates in the back and the lower rates in the front. you could run either way. but with that low of rates i would run it with the heavier rates up front

Evs-One

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slammed_93_hatch &raquo;</TD></TR><TR><TD CLASS="quote">not always true there is the "jdm" spring rate thing. with the heavier rates in the back and the lower rates in the front. you could run either way. but with that low of rates i would run it with the heavier rates up front</TD></TR></TABLE>

that would be USDM.

JDM coilovers run higher front

RangerDan

I run 350front/ 420 rears. This allows the back end to be a little looser for going around corners in an autox event. My spring weight is pretty friendly compared to some and its totally streetable.

Check this out. http://www.norcalcrx.org/tyson/coilover.html

This came from the sticky post in the road race/ autox forum...theres alot of really good info there.

toEknEEg

call up ground control. they will tell you in seconds.

i told him the serial number and he didnt even look it up. he knew it off the top of his head

SleepnCiViC

200/180 ehhhhh very soft!!!!!!

sting94112

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SleepnCiViC &raquo;</TD></TR><TR><TD CLASS="quote">200/180 ehhhhh very soft!!!!!!</TD></TR></TABLE>

that is the length. the spring rates are 330/250

igone916

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sting94112 &raquo;</TD></TR><TR><TD CLASS="quote">

that is the length. the spring rates are 330/250</TD></TR></TABLE>

hey where do you look for the spring rates...

RangerDan

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by igone916 &raquo;</TD></TR><TR><TD CLASS="quote">

hey where do you look for the spring rates...</TD></TR></TABLE>

LOL Look 4 post above yours....