IRS vs. 4-link, aka: RS vs DSE...
 

I'm trying to decide between the RS IRS setup
and the DSE Quadralink...

I want a smooth, compliant ride 90% of the time
with the ability to make some changes for weekend track rides.
Sort of a "best of both worlds" if possible.

My builder says the DSE is the proven setup, etc...

any thoughts, feedback from those who've used or rode in a vehicle with these>?

Have a Quadralink/Moser 9" combo on order for my '69 right now... :thumbsup:

I've not seen either setup in person, but may provide at least a little info.

You'll likely be using coilovers on both setups, so springrate/shock changes would be possible either way.

The advantages you're getting with IRS is the ability to bake in static camber, and realize camber gain through suspension travel. Both of which are utilized to compensate for body roll.
The disadvanges are added cost/complexity.

If you're looking for a compliant ride 90% of the time I would venture a guess that you wouldn't realize a measurable advantage 95% of the time.

You just have to determine if that added cost/complexity is worth it for the 5% of time it would benefit you.

Im guessing your building a 1st gen camaro? Id say you can't go wrong ether way. whats you budget?

DSE would be my choice on a 1st gen camaro with the quadra-link. and with a hydro frame. if you were building like a chevelle or something id say RS setup would be the ticket I know Chris Jacobs loves his new chassis under his car.

Ether way both are top notch probably depends what you wanna spend with the RS IRS being more $$ than the DSE set-up:thumbsup:

i cant tell you as far as ride goes because i have yet to drive my dse front and rear equiped 67 camaro. I did see the RS setup and man i wouldnt hesitate to place that under my 67 camaro either. If i was you i would go DSE because of cost.

Go ride in a brand new Corvette ---- and you KNOW the handling is superb.... so ride and handling ='s IRS.


Personally for me it would be a no brainer unless budget is a constraint - then DSE is the absolute top of the top.

If cost is at all a concern, I would say the DSE Quadralink is the right choice for you. If you want to spend a little more money and be different, I would recommend the Roadster Shop's setup.

I have all of DSE's suspension under my car with remote canister shocks and have logged 11-12k miles on the car. With street friendly shock settings, the car rides as nice as a new 'Vette or G35 (I'm only using those as reference because I've gotten some miles on those cars). I'm afraid to disagree with Mr. Weld, but I actually think my '69 as I think it has a smoother ride than new Corvette.

Just my opinion, but if you're looking for the best ride possible out of the DSE suspension, the double adjustable shocks make a difference. A lot of people tend to buy the non adjustable ones because they don't think they're going to be racing, however I think they provide a noticeable benefit on the street as well. (yes, I've tried out both sets of shocks on my car).

Matt

I now daily drive a C6 corvette with base suspension and I agree with Matt, the Camaro is very comparable. Shocks settings and realistic spring rate are the key to a good ride. The independent suspension certainly has some advantages in performance.

Thanks for this feedback gentlemen
I am leaning towards the IRS, but trying to wrap my head around spending the kind of $ it's going to take...:cool:

My Chevelle has had both a solid rear axle and an IRS and to me there is a huge difference in ride quality. The car had double adjustable shocks in both configurations and I will admit it was sprung a little on the stiff side to get it to work right on the track with the solid axle set up. The IRS on the other hand is sprung very soft, yet handles better with less body roll and a way better ride. I'll agree that if you want to do more of a bolt in type rear suspension the DSE QuadraLink is awesome, but if you can spend the money you will not be disappointed in the RS/IRS chassis.