coilover 8 inch spring?

[copperdatsun76]

does anyone know if you its ok to run 8 inch springs on a coilover setup for a 280z? i have a set of 8 inch 2.5 id eibach coilover springs with 300lb springs rates.

[JMortensen]

It's OK.

[copperdatsun76]

and just section the strut like normal? im just curious what the differences are vs. running the 10 inch spring that the GC kit offers

[JMortensen]

The main difference is that the 10" spring has more travel, this is important with lighter spring rates. When you go stiffer you can go shorter on the spring and not run out of travel. You can look at Eibach's website and see what the total travel of the spring is. Most people with coilovers lower their car to the point where coil binding an 8" 300 lb spring is not going to be an issue. You'll hit the bumpstop first. The smaller spring has the added benefit of not bending as much as it compresses, and it's lighter.

[CarolinaTZ]

I, too, have 8" x 2.5" but they are 225lb...would coil bind be an issue with these?

 

I understand you section the struts just like with a 10" spring.

[JMortensen]

You would need to look up the spring length and bound length, figure out how much travel you'd have at the ride height you want and see if it would bind before it hit the bumpstop.

[copperdatsun76]

thanks i appreciate the info

[turbeau]

if and when you guys look up the travel distance of the 8'' springs will you post that up?

 

also, i have 280f and 336 rear spring rate and it is almost unbearable on bumps. on the freeway it bucks and porpuses and the whole car will jump off the ground if im going fast enouph and hit a good bump, like a bridge to freeway transfer. no fun

[JMortensen]

Different springs have different free lengths and bound lengths. If you look up Eibach's website they have .pdf catalogs that have the info, but it will vary a bit from Eibach to Hyperco to whatever other source you use for springs.