THUNDERZ Posted February 6, 2004 Share Posted February 6, 2004 I am just wondering why spring companies are offering progressive springs for z application when soo many of you guys say they suck. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted February 6, 2004 Share Posted February 6, 2004 Because they sell. $$$ The idea sounds great to someone who doesn't know better. Jon Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted February 6, 2004 Share Posted February 6, 2004 For what I do with my car, the progressives work great. I bought them off a guy who was converting to coil-overs, and it was clear to me he was disappointed in them. Denver streets suck, and so do the highways - rutted, rough and full of holes. I couldn't tolerate a stiffer spring, and they work fairly well for me, even on the road track. They are not hard to launch on the strip either - I can work with a bit of compliance. Quote Link to comment Share on other sites More sharing options...
danc Posted February 6, 2004 Share Posted February 6, 2004 I have Eibachs with Tokico adjustable and like them very well for my straight line street application. I have an 83 ZX with a 430 H.P. SBC. I can very easily see the benefit and flexibility of ride height/adjustment of Coil-Overs depending on what you use the car for and if you have a desire to put larger rims/tires on. Quote Link to comment Share on other sites More sharing options...
SpeedRacer Posted February 6, 2004 Share Posted February 6, 2004 I also have a set of Eibachs with Tokico shocks and love them. The roads here in Michigan are terrible so I really appreciate the improved ride from the progressive springs. I have a 1971 Datsun 240Z based 1962 Ferrari 250 GTO kit with a 327 SBC in it. http://www.hybridz.org/phpBB2/album_pic.php?pic_id=2514 BTW, lots of production cars come with progressive rate springs in them these days. However, the computer usually matches them up and the spring rate is different for each of the four corners of the car. Quote Link to comment Share on other sites More sharing options...
gramercyjam Posted February 6, 2004 Share Posted February 6, 2004 Progressives are probably a good compromise for handling VS comfort. Progressives are not an acceptable option for those that don't won't compromise handling for comfort. Quote Link to comment Share on other sites More sharing options...
johnc Posted February 6, 2004 Share Posted February 6, 2004 They're fine for a street car and I would run a set on a daily driver. For a race car they are not predictable so adjusting a car for a specific track gets frustrating. Quote Link to comment Share on other sites More sharing options...
THUNDERZ Posted February 6, 2004 Author Share Posted February 6, 2004 so what is a good spring for a z that is on the track three times a year and on the street for the rest of the time? Quote Link to comment Share on other sites More sharing options...
Brad-ManQ45 Posted February 7, 2004 Share Posted February 7, 2004 European Springs? Quote Link to comment Share on other sites More sharing options...
240Z2NV Posted February 7, 2004 Share Posted February 7, 2004 Euro Springs are no longer available according to MSA Quote Link to comment Share on other sites More sharing options...
DavyZ Posted February 7, 2004 Share Posted February 7, 2004 I have Eibach progressives on my car at the moment and they feel great on the read, but they have no adjustability like the coil-overs do and that is the only reason why I won't be keeping mine in the long run. Davy Quote Link to comment Share on other sites More sharing options...
260DET Posted February 7, 2004 Share Posted February 7, 2004 There is some merit in using progressives in a car that is used for ordinary and competition purposes. But compared with linear rate springs you would have to go up more in the spring rate. Quote Link to comment Share on other sites More sharing options...
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