Compression and Rebound Explained: How Shock Valving Works | QA1 Tech

[@NealHogue]

Been running your full set up on my 65 chev truck for 4 yrs, and couldn’t be happier!! It’s a blast going through corners on country roads ! Thanks for making bolt on parts.

[@LastHumansGarage]

i have a fully adjustable customized magride in my 2018 Audi S3, with 3 way adjustable compression rebound. (low/med/high shock speed.) i dont like the harsh bumps over cracks around town. i think i will dial back my compression for low speed shock setting (< 2.5" rod trravel). thanks for the thoughts, you got my project going.

[@geofflloyd3807]

Thanks for the information. Excellent product and performance on my 69 C-10 complete suspension front & rear with installation by Kugel Komponents. Much appreciated.

[@QA1TECH]

Happy to hear it! We appreciate you choosing QA1!

[@geofflloyd3807]

@@QA1TECH super pleased about your product. Jeff Kugel only recommended QA1 in this build process. If you have an email address I would be happy to send you photos. Much much appreciated.

[@QA1TECH]

@@geofflloyd3807 Yes! Please send them to [e-mail].

[@haf2193]

Thanks a lot,u solve my problem there

[@QA1TECH]

Happy to hear our video could help!

[@designsinorbit]

So on a single adjustable, I can still change both stiffness and ride height?

[@QA1TECH]

On our coil-over shocks, yes. On our stocker star, factory replacement shocks, they just adjust your valving.

[@jessewilliams875]

What would be the ideal settings for a 2000 Silverado 1500 RCSB RWD for the most comfortable ride? These trucks typically have a lot of bounce in the rear.

[@alfreddevost5913]

What's the preferred setting for the single adjustable shocks for 96 impala ss qa1 shocks

[@QA1TECH]

Hi there! If the car is mainly a street cruiser, a good setting to start would be 0-6 clicks. It may take you a little bit to find the right balance, but generally that's a good start! Adjust the knobs, take it for a drive and adjust as needed.

[@-.__.__.-Rad]

You sparked my interest, but your website has a very limited car manufacturers options.... Unfortunately no use for me

[@QA1TECH]

Hi there! Depending on what you are looking for, we may be able to offer it even if it's not on the website. Please give us a call. 952-985-5675

[@bengray9866]

i have a lowered car with very stiff spring amd wondering if i should have stiff shocks or soft shocks?

[@QA1TECH]

It might be better if you run your shocks stiffer with the spring setup you have. I would recommend calling into our tech team for some advice and recommendations. It may be easier to try to a different spring rate. They are available M-F 9am-5pm CST at 952-985-5675 or [e-mail]

[@jasonguy6572]

Can you guys sell me an adjustable shock for my 2018 rav4 hybrid. It rides stiff and would LOVE THIS and willing to pay much more than a factory shock replacement?

[@QA1TECH]

We currently do not offer a direct fit shock for this vehicle. We may be able to depending on the shock measurements and mounting configurations. Please reach out to our tech team at 952-985-5675 or [e-mail]

[@NickelWhiteS550]

On drag racing why did y’all skip the rear of the car? Y’all only talked about the front not the rear of the car in drag racing.

[@QA1TECH]

I can help answer some questions for you on the valving of your drag car!

[@TonyGarrett-p1c]

I dunno; this video did not give me a warm fuzzy about QA1 products....

[@RbNetEngr]

I think you provided some very elementary information about Compression and Rebound valving, and not much else. I am thinking that this short video is really bait to get potential customers to contact QA1? For example, you say your recommendation is to go stiffer for Rebound. But you neglect to mention that a stiffer Rebound damping can have a negative effect over repeated bumps, where the slowness caused by a stiffer Rebound setting can result in the damper ultimately jacking down until the suspension is riding on the bump stops. At that point, the spring rate is almost infinite, so the ride becomes VERY stiff, and it can also result in the tires being unable to track the pavement properly and end up with less traction. My suggestion for viewers who are trying to understand how to set up adjustable coilovers: 1. Start by setting all four dampers for Full Soft on both Compression and Rebound. 2. Find a good stretch of roads that will be a good test for the suspension response. Make sure it has some bumps, ridges, ripples. This will be your test route as you make adjustments, and the consistent route will help you to see how the changes affect the ride and handling of the vehicle. 3. Take the vehicle for the initial drive over your test course. Make a note of how the front responds, and how the rear responds. 4. Now, with the rear still set for Full Soft on both Compression and Rebound, work on the front suspension. Dial in Compression stiffness, several clicks at a time. For each change, take the vehicle out on the test course and note the change in response for the front suspension. 5. Repeat Step #4 until the Compression damping is as firm as possible, without being stiff and uncomfortable. Write down the final front Compression setting. 6. Now, work on the Front Rebound setting. Increase the Rebound stiffness, a few clicks at a time, and take the vehicle out on the test course. Note the response to increased Rebound stiffness. The goal is to get the Rebound stiffness sufficient to quickly settle the vehicle after it encounters bumps and road surface changes. 7. Repeat Step #6 until the Rebound damping controls the chassis response smoothly, and doesn’t stiffen Rebound so much that the damper jacks down onto the bump stops over repeated bumps. Write down the final front Rebound setting. 8. Now that the front suspension has been initially set, work in a similar manner on the rear suspension, starting with Compression damping. For the rear suspension, Compression damping will have a bigger effect on ride quality (seat of the pants bumps), so use that as a guide to set the rear Compression damping. Again, stiffen the Compression damping a few clicks at a time, then take the vehicle out on the test course and note the change in ride quality. 9. Repeat Step #8 until the ride quality of the chassis is comfortable over the test course - firm, but not stiff. Write down the final rear Compression setting. 10. Finally, work on the Rear Rebound damping. Increase the damping a few clicks at a time, and for each change, take the vehicle out and note the difference with the new setting. 11. Repeat Step #10 until the Rear Rebound damping controls the rear response to bumps, allowing it to quickly settle without excessive bouncing, and without causing the dampers to jack down and ride on the bump stops. Write down this final rear Rebound setting. That will give you a good initial setting for your suspension. It’s important to write down these values and keep them, because as you drive the vehicle and become familiar with the suspension performance, you will likely note that the front or rear may need some fine tuning in the future. For the fine tuning, only work on a single axle that you suspect could be improved, and only change the damping a single click in either direction. Write down the change, then drive the vehicle and note whether that change made things better or worse. For the fine tuning, take your time, and really focus on how the damping changes affect either the front or the rear suspension response. Don’t try to change too much at once or else you will lose your reference. If you do end up changing too many things and really mess up the response, go back to those final Compression and Rebound settings that you saved during your test route work, and start from that known reference again. I used this procedure for both of my cars with coilovers, and it ended up giving me much improved ride and handling.

[@rogerharrison2671]

🤘 Promo>SM.

[@kukuku786]

100 thumbs downs for how loud your intro is. grrrr.