Author Topic: New 6 link from QA1  (Read 4703 times)

Offline 73restomod

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New 6 link from QA1
« on: March 12, 2015 - 07:10:15 PM »
This could very well be my new rear suspension, says it will be available for B/E bodies soon...! They need to hurry up and get these out for testing.







Offline brads70

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Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline 73restomod

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Re: New 6 link from QA1
« Reply #2 on: March 13, 2015 - 10:36:59 PM »
By looking at the system I think it should function quite nicely, all the links are long, which is good for braking and acceleration. Main reason I haven't opted for a street lynx or similar setup is because of the short upper links, and I have seen them hop under hard braking at the autocross. This setup should also have a lower roll center as well. Time will tell.

Here is a link to another article on hotrod's website http://www.hotrod.com/features/1412-bolt-in-six-link-rear-suspension-for-66-79-chrysler-a-bodies/

And some better pics



« Last Edit: March 13, 2015 - 10:41:48 PM by 73restomod »

Offline 3D

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Re: New 6 link from QA1
« Reply #3 on: March 13, 2015 - 11:20:51 PM »
Looks nice but I don't think you can run a wide tire?

Offline 73restomod

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Re: New 6 link from QA1
« Reply #4 on: March 14, 2015 - 02:56:18 AM »
Looks pretty tight to the frame rail, tighter than the factory leafs, this particular one is for A-bodies.

Offline 72bluNblu

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Re: New 6 link from QA1
« Reply #5 on: March 14, 2015 - 03:19:16 AM »
Even an A-body with a 1/2" offset hanger/shackle kit has that much space though. And from what I understand the 6-link can't be used with the offset hangers.

On an E-body, if they use the stock brackets like that the 1" offset spring kits would have more tire room.

Where exactly is your exhaust supposed to go?

Offline 73restomod

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Re: New 6 link from QA1
« Reply #6 on: March 14, 2015 - 06:27:31 PM »
I don't see why you couldn't use offset hangers, everything uses spherical rod ends, so any misalignment, as long as it wasn't so severe to cause binding would have no effect on travel or action. That and it bolts to the old leaf spring pads, so if you have already relocated them, you would probably have to use an offset front hanger to get the alignment right anyway. It wouldn't be hard to make your own front spring hanger by duplicating the mounting hole patterns from the QA1 kit and offset the mount plate like the DR-Diff kits.
The link rods are probably 1.25 or 1.5 inch diameter, which will still provide extra clearance over a 2.5 inch wide spring. Either way its all speculation until people get hands on the system; but I think this system could be a have your cake and eat it too, with some creative thinking and/or fab work.

Offline 72bluNblu

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Re: New 6 link from QA1
« Reply #7 on: March 15, 2015 - 03:38:18 AM »
I was going off information from a member over at FABO that claimed to have spoken directly with QA1 about the offsets not working.

The issue I see is the link that runs back along the gas tank, and the amount of room between it and the rest of the mounts that bolt to the spring perches. On an A body it might not matter since the offsets are only a 1/2", but on an E body with a 1" or 1.5" relocation it could definitely interfere.

The other issue is that moving the perches moves the lower location of the coilovers. Yes, the offset hangers/shackles do that to the shocks, but moving the shocks isn't as significant. Moving the lower mount of the coilover will stand it up straighter, which will change the spring rate needed as well as the geometry of the suspension travel.

The whole thing seems unnecessarily complicated to me. And I still don't see how anyone is going to put a set of tailpipes out past the axle.

Offline 73restomod

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Re: New 6 link from QA1
« Reply #8 on: March 15, 2015 - 09:46:37 AM »
Well space for the exhaust is at a premium, but it is there (in between the shocks to just either side of the pumpkin), no different than a triangulated 4 link. For either one your looking at custom tailpipes. Is it complicated, yes. Is that a bad thing, not in my opinion. Cantilevered suspension systems have been around for a long time, and they tend to offer lots of adjustability, with fewer sacrifices when it come to certain suspension parameters such as anti-squat, instant center, or roll center that are caused by limited space (i.e. short upper or lower links, or not enough adjustability for link angles) in the chassis. I know that this setup isn't for everyone, but other than building a torque arm style myself, to me, it's best bolt in option to date. It makes me excited to see out of the box thinking from the aftermarket applied to Mopars, for a change.

Offline 72bluNblu

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Re: New 6 link from QA1
« Reply #9 on: March 15, 2015 - 06:03:16 PM »
Oh don't get me wrong, I'm always happy to see a major company coming out with any new suspension products for our cars. I'm a little surprised that this is the route that QA1 decided to go, but that said I'm glad they did it. It puts something out there that is completely different from all the other options at the moment, that's for sure.

Since both of my streetworthy cars have offset springs though I think I will definitely be waiting to see a few of them installed before I give it too much thought. I'm also not keen on that many heim joints anymore, not since the longevity issues I've experienced with the ones on my Hotchkis UCA's. Another one of those items that works great in theory and is probably fine for a race car that doesn't translate as well to the street, especially for daily drivers that see more than just hot, dry pavement.

But I'll definitely be looking to see how the installs go and how the 6 link performs. If nothing else, hopefully it will push some of the other manufacturers out there to consider producing something other than upgraded leaf springs for the rear suspension.

Offline HP2

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Re: New 6 link from QA1
« Reply #10 on: March 16, 2015 - 09:42:46 AM »
Since its QA1, I'm sure they have done their homework on angles, motion, etc. because just looking at it, it seems like a complex solution to a otherwise simple question.  I'm sure it is probably a few pounds lighter than a stock set up too, despite its complex appearance, due to the use of chrome-moly tubing. It also appears that there is not much adjustability built into it, so I hope I'm right on it being pretty dialed in out of the box.

Myself, I think I'll stick with leafs on pivots and an adjustable panhard. Perfect, no, but adjustable where it counts and dead nuts reliable.

So, I wish them well with it. I'm sure they will sell a bunch just because its different and its new.