Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, Lowered SRX in Cadillac SRX Forums; caddy stock.jpg
As you can see from the before picture, my '06 AWD N* MRC always ...
As you can see from the before picture, my '06 AWD N* MRC always sat nose high and I hated the look of it. I was doing some service work on it, and decided to cut one coil out of the front springs. The 2nd and third pics are the result. I'm pretty happy with it. It still rides nicely, and looks vastly better IMO.
I realize the spring rate will be incrementally firmer, and that the strut piston will be about 1" further into strut body (considering the 1.5" drop and that the strut is inset somewhat from the face of the wheel mounting face), but it appears there is still good range of motion of the strut and that it isn't far from its original spec.
Automobile(s): 09 SRX V8 AWD Sport 2010 CTS AWD Wagon
Re: Lowered SRX
I don't agree so lets talk.
How can you change the rate of a spring by cutting it?
Ok so the car is lower now yes but how is that going to stress the shock, if it were to "max out" the bump stop would be hit long before the shock bottoms out, does the shock see more stress being lower in the travel, the rate of movement has not changed.
I'm not being lippy at all either I just like facts, your not giving me any.
I have to chime in.
I am a mechanical engineer so I know about springs.
This applies to a uniform wound spring.
If you cut cut coils out of a spring, you do (2) things
(1) you decrease the travel of the spring before it becomes a solid (bottoms out)
(2) you increase the force that the spring will generate (the spring rate)
The above is only true if you do not lengthen the spring back to its original length (by stretching coils)
If you stretch the spring back to its original length by stretching coils, the opposite of (1) and (2) will occur.
Ideally a spring functions best when you keep the overall travel of the spring to less than 30% of its total length.
Automobile(s): 2009 SRX V6 RWD, 1999 Corvette..370 RWHP and many more mods
Re: Lowered SRX
The SRX has a tapered coil spring so I'm not sure if it qualifies as a uniformly wound coil spring. However, since the OP says "it still rides nicely" whatever changes in spring rate that might have occurred appear to be minimal. I would agree with Whiplash that the suspension geometry has changed but I'm with Cone in that I can't see how any more stress would be placed on the shock. The change in geometry will likely change the camber a bit and possibly the caster, so I would have that checked to see if it is still within spec.