Stock NA VS Turbo Springs
 

I have a question, we are putting in new strut cartridges on my 87 NA and wondered if you had the choice of using the stock 87 NA springs or a set of springs from a 85 Turbo car which would you use? I have a Turbo parts car and can get the springs out of it. Just wondering if there's be any difference?? Guess we are looking for a firm sport ride but not planning to buy new springs.

BTW I have a full set of Turbo springs,, actually 2 sets.

All done
 

Guess I'll answer this myself.

We went ahead and installed the springs from a 86 Turbo on my 87 2+2 NA. Those springs plus new gabril shocks/struts gave us a very firm ride. We kind of like the new ride it's for sure a firm sport ride like what I'm used to in a sports car.

When we stood the Turbo springs up next to the NA there was about 1 inch diff in height , however the Turbo spring was a much stiffer spring. After all was done we did not notice any diff in the height of the car.

Thanks for the post. I may be doing the same thing with my 86 2+2

Here;s a link some great z31 info.

http://z31.com/wiki/doku.php over all page

http://z31.com/wiki/doku.php?id=info...:stock_springs

Notice that all Z31 springs were the same except

<table class="inline"><tbody><tr class="row0"><th class="col0 centeralign" colspan="6">Spring Code / Applied Model </th> </tr> <tr class="row1"> <th class="col0 centeralign"> Spring
Code </th><th class="col1 centeralign"> Year </th><th class="col2 centeralign"> Model </th><th class="col3 centeralign"> Grade </th><th class="col4 centeralign"> Roof </th><th class="col5 centeralign"> Engine </th></tr></tbody></table><table class="inline"><tbody><tr class="row13"><td class="col0 centeralign">#7 </td><td class="col1 centeralign"> 84 </td><td class="col2 centeralign"> 2 seater </td><td class="col3 centeralign"> 50th AE </td><td class="col4 centeralign"> t-tops </td><td class="col5 centeralign"> T </td> </tr> <tr class="row14"> <td class="col0 centeralign"> #7 </td><td class="col1 centeralign"> 86 </td><td class="col2 centeralign"> ALL </td><td class="col3 centeralign"> ALL </td><td class="col4 centeralign"> ALL </td><td class="col5 centeralign"> T </td> </tr> <tr class="row15"> <td class="col0 centeralign"> #8 </td><td class="col1 centeralign"> 87-89 </td><td class="col2 centeralign"> ALL </td><td class="col3 centeralign"> ALL </td><td class="col4 centeralign"> ALL </td><td class="col5 centeralign"> T </td> </tr> <tr class="row16"> <td class="col0 centeralign">
</td><td class="col1 centeralign">
</td><td class="col2 centeralign">
</td><td class="col3 centeralign">
</td><td class="col4 centeralign">
</td><td class="col5 centeralign">
</td> </tr> <tr class="row17"> <td class="col0 centeralign"> #10 </td><td class="col1 centeralign"> 88 </td><td class="col2 centeralign"> 2 seater </td><td class="col3 centeralign"> SS </td><td class="col4 centeralign"> t-tops </td><td class="col5 centeralign"> T </td></tr></tbody></table>

Guess I need to add that there were small variations in springs over the yrs and models, only those I listed showed any real difference when looking at the Lbs/in. The Lbs/in is the weight required to compress the spring, the higher the number the firmer the ride will be. All the years and models other than those I listed had the same 136 Lbs/in front and 140 Lbs/in rear with only minor differences in the overall spring size.

Let's see if this works??