mfg Posted January 5, 2015 Report Share Posted January 5, 2015 In 1989, Avanti Motors sometimes used which of the following methods to lower the rear of the lighter Avanti fiberglass body after mounting it on the GM chassis?.......1) Cut one coil off of spring,............2) Install 'less stiff' aftermarket springs.....or....3) Heat the spring with a torch to shorten it a bit Link to comment Share on other sites More sharing options...
mfg Posted January 6, 2015 Author Report Share Posted January 6, 2015 Still looking here! Link to comment Share on other sites More sharing options...
AnAvantiR1for Bob Posted January 6, 2015 Report Share Posted January 6, 2015 Given how Altman-Newman read the market for the Avanti (less "sporting" ), installing 'less stiff' aftermarket springs would have accomplished two goals. Link to comment Share on other sites More sharing options...
mfg Posted January 6, 2015 Author Report Share Posted January 6, 2015 Given how Altman-Newman read the market for the Avanti (less "sporting" ), installing 'less stiff' aftermarket springs would have accomplished two goals. Reasonable thought,.....but not the answer here!.....Anyone? Link to comment Share on other sites More sharing options...
plwindish Posted January 6, 2015 Report Share Posted January 6, 2015 89 would have been in Carfalo's realm. Softer after market springs. Link to comment Share on other sites More sharing options...
Gunslinger Posted January 6, 2015 Report Share Posted January 6, 2015 I'll take a guess at cutting a coil off the existing springs. That would likely be a less expensive method of obtaining the same results. I think heating the coils would hurt the temper of the material if not very, very careful, plus being a very inconsistent way of achieving equal results spring to spring. Cutting a coil would be a simple measurement to maintain equal results. Link to comment Share on other sites More sharing options...
mfg Posted January 6, 2015 Author Report Share Posted January 6, 2015 I'll take a guess at cutting a coil off the existing springs. That would likely be a less expensive method of obtaining the same results. I think heating the coils would hurt the temper of the material if not very, very careful, plus being a very inconsistent way of achieving equal results spring to spring. Cutting a coil would be a simple measurement to maintain equal results. I agree,...but believe it or not the answer is #3, they heated them! Link to comment Share on other sites More sharing options...
Gunslinger Posted January 6, 2015 Report Share Posted January 6, 2015 I'm certainly no engineer...choo-choo, automotive or any other kind...but that seems like a chancy way to do it. Link to comment Share on other sites More sharing options...
mfg Posted January 7, 2015 Author Report Share Posted January 7, 2015 Sometimes the 'short way' turns out to be the 'long way'. One '89 Avanti convertible treated in this fashion eventually settled unevenly at the rear, requiring new coil springs. Link to comment Share on other sites More sharing options...
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