Guest zfan Posted May 1, 2002 Share Posted May 1, 2002 Does anyone know what the stock spring weight was for the front and rear springs in a 1971 240 Z. Im trying to go a little stiffer than stock but do not want to over do it! Thanks, Mike Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted May 1, 2002 Share Posted May 1, 2002 Mike, Seems like 140 lbs rings a bell. I really think that is close. Mark Quote Link to comment Share on other sites More sharing options...
74_5.0L_Z Posted May 1, 2002 Share Posted May 1, 2002 The stock spring rates front and rear for the 240Z was 90 lb/in. I am autocrossing my 260 and am using 250 lb/in in the rear, and 200 lb/in on the front. This is too stiff for the street. For the street try 150 lb/in in front, and 175 lb/ in in the rear. Quote Link to comment Share on other sites More sharing options...
Guest scca Posted May 1, 2002 Share Posted May 1, 2002 as an idea the suspension tech springs are bout 140lbs.... like dan suggested 150 front 175 rear or 175-200 if you drive it hard Quote Link to comment Share on other sites More sharing options...
Guest Aaron Posted May 2, 2002 Share Posted May 2, 2002 I remember from my old service manual that the '81 280ZXT was 120lb on all four corners. I was a much heavier car however. Quote Link to comment Share on other sites More sharing options...
katman Posted May 2, 2002 Share Posted May 2, 2002 I believe the FSM says 83 lb/in front, and 101 lb/in rear for the 240Z. Ain't much is it? Quote Link to comment Share on other sites More sharing options...
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