question, i have two 2005 coupes, one cherry SRT and a 6 speed NA that i just picked up cheap to leave at the airport i fly to weekly. for the first time i had them sitting next to each other and the SRT sits lower, so do they have lower springs than the NA, or have they sagged over time?
Dan

 

Lower and stiffer.

Thicker anti-sway bars, too.

 

Specifications say:
NA height = 51.5". Ground clearance = 4.9"
SRT height = 51.5". Ground clearance = 4.9"

They are the same according to the spec sheet, shorter springs do not mean lower height, as stronger springs do not compress so much for the same load as softer springs.

 

I stand corrected.

BUT, they always look lower than an N/A.

Maybe it's the surfboard?

 

front lip makes it look lower too

 

If what the specs show is correct then you stand corrected for one of the first times ever.
I am glad you are staying around the forum, you would be sorely missed.

 

All Crossfires are probably intended to have the same height, with the same ground clearance, but there's a LOT of variance in vehicles if the spring cups (rubber donuts) are any indicator.

I know the trim levels come with varying dry curb weights, but you can remove the springs from three N/A coupes and three SRT coupes, and you'll likely discover than 60% of them have unique spring cups (one dot, two dots, four dots). Each dot, IIRC, was about a ~4mm difference in height.

Somewhere deep in the archives is an explanation of thickness respective to the dot-count, but I'm too lazy to hunt for it right now (and it's a rabbit trail to this discussion). I think maximum thickness is ~24mm, minimum is ~12mm. I'm sure there was a broadcast sheet in the factory dictating which spring cup would be used with which spring, respective to the model/trim coming down the line. I can't imagine them tweaking each car via trial and error.

Still, a 5mm variance here and there is moot. The SRT springs are considerably stiffer, and there are spring rate differences between coupe and roadster as well. Highly unlikely that they would have sagged more than the N/A coupe's springs. If the gap is considerable (>20mm), then there's a good chance the SRT is running with Eibach/H&R springs from the previous owner.