P500 Rear suspension sag at full payload?

C2Corvette1

C2Corvette1

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Jan 3, 2023
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Not going to be running at max payload but will be adding slightly heavy rear bumper, 90 lbs of dog, and 2 passengers for most daily use. Does the suspension sag a lot under static load? Thanks. 2022 520 on the way.
 
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Yomama101

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Not going to be running at max payload but will be adding slightly heavy rear bumper, 90 lbs of dog, and 2 passengers for most daily use. Does the suspension sag a lot under static load? Thanks. 2022 520 on the way.
Our 2022 520 barely sagged/moved with the wife, myself and around 50lbs of "stuff" behind us in the bed with stock suspension. I noticed it a lot more with the Elka shocks. Slight sag as you get in and load stuff. 😁Lower spring rate I assume. Still working on the "Tuning" of the shocks for the load-out and the trail.
 
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crewcabrob

crewcabrob

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Hi,

I had to load 400 pounds of cement bags to get the suspension to sag 2 inches. I have Elka stage 1 shocks though. I've also had more than that with mulch in the back, and it didn't sag any more than that. I've also did an experiment with water softener salt.

I know that doesn't sound like much, but you have to remember that the suspension travel is only 5.9". I believe a proper suspension sag setup should be roughly 20-30%. Let's use some numbers that are pretty easy to work with.

500/520 suspension travel is roughly 6"
25% of 6 is 1.5"
Sag of weight from a full load is another 2"

That leaves you roughly 2.5" of upward travel.

I actually think I have a thread on my suspension tuning from last year that might be a good read for you.

Rob
 
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crewcabrob

crewcabrob

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Here is the info I have compiled on the suspension. Like I mentioned earlier, I have Elka shocks so the stock will be a bit different.

 

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