Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - what rate springs to order with ground controls?

HippoSleek · 12-03-2002, 06:44 AM

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I know in other applications, AGX's can hold up to a 400 lbs. spring safely (I know people running 450# w/ AGX on Civics).  So anything up to that amount should be fine.  a 10kg/mm spring will kill them!

More important though is what you plan to do w/ the car.  If it is mostly a daily driver w/ perhaps some autox, I'd go for the low end of the spectrum - like a 5/4 kg set up.  That would provide way more performance than somethign like a ProKit, but would be very livable on the streets.  Personally, I wouldn't put anything over 6 kg (336 lbs) on a street car.  The other thing to remember is that Eibach ERS (GC's springs) come in 25# increments, so you could do something like what West was saying.

12-03-2002, 06:44 AM	#3
HippoSleek Nissanaholic! Join Date: Aug 2001 Location: elsewhere Posts: 2,081 Trader Rating: (0)	<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/withstupid.gif" border="0" valign="absmiddle" alt=':withstupid:'> I know in other applications, AGX's can hold up to a 400 lbs. spring safely (I know people running 450# w/ AGX on Civics).  So anything up to that amount should be fine.  a 10kg/mm spring will kill them! More important though is what you plan to do w/ the car.  If it is mostly a daily driver w/ perhaps some autox, I'd go for the low end of the spectrum - like a 5/4 kg set up.  That would provide way more performance than somethign like a ProKit, but would be very livable on the streets.  Personally, I wouldn't put anything over 6 kg (336 lbs) on a street car.  The other thing to remember is that Eibach ERS (GC's springs) come in 25# increments, so you could do something like what West was saying.