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Author Topic: Reilly Motorsports or XV Motorsports rear Suspension?  (Read 3846 times)

Offline QuartermileCuda

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Reilly Motorsports or XV Motorsports rear Suspension?
« on: December 02, 2009 - 11:03:03 AM »
I have been looking to Upgrade the rear suspension in my cuda so looked into kits to swap it out. I have found 2 somewhat nice kits that I can not really decide between. One being the XV and the other being Reilly.

http://www.xvmotorsports.com/products/detail/index.cfm?nPID=65

This is the XV motor sports one. I have seen the one post that covers the whole XV install and it looks difficult and pricey to put in. It also cost more if you want to upgrade to adjustable shocks.

http://www.reillymotorsports.com/store/product.php?productid=16174&cat=0&page=1

The Reilly seems easier to install because it bolts up to the old leaf spring mounts and requires less welding. The base order is 200 cheaper and also comes with single Adjustable shocks.

Im just looking to what everyone's opinion would be between the two. Also if anyone has a reilly I would like to know how the handling is compared to the XV.
71 340-6 AAR 'Cuda Concept.
(Was a 73 Barracuda)
69 Dodge Charger 383 4 speed. T5 Copper Needing Resto!

340/416 Stroker, 904 w/ Gearvendors gear splitter, 3:91 Posi.
Cant wait to see how fast she'll move. ;)

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Reilly Motorsports or XV Motorsports rear Suspension?
« on: December 02, 2009 - 11:03:03 AM »



Offline wiging19

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #1 on: December 03, 2009 - 02:03:29 AM »
 :clueless:

Offline thedodgeboys

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #2 on: December 03, 2009 - 08:34:35 AM »
IMNCARN82 \ Robert has one in his car and loves it pm him for more info.

http://www.cuda-challenger.com/cc/index.php?topic=63901.0

i am with you on the Reilly but I dont know much about the XV.

bolth would work  :bigsmile:
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Offline mopardave

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #3 on: December 03, 2009 - 09:11:11 AM »
We installed the Reilly street lynx t bar system in a hemi cuda we did for a customer and the ride and handling is awesome.
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Offline HP2

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #4 on: December 03, 2009 - 10:33:39 AM »
The Reilly set up is a similar design of the GM A body layout, which means it has all the benefits and drawbacks of those systems.

XV is a three link design which is much more popular with the road racing crowd for its ability to articular without binding.


My perceptions of these systems;

The benefit people are seeing with these systems is having someone else spec out all the wheel rates neceessary to balance out the car,  thus achieve excellent handling. With the proper application of formulas, the same results can be produced with the OEM suspensions, but most people do not how to get there, of ir they have hte books, have not bothered to do all the calculations (they can get extensive). Tires only care about the force acting on them, not the system appling the force.

Coil overs are nice in that they are lightweight, quickly adjustable, and have a plethora of available springs rates. All great things in a competition environment that require quick, minut changes to adjust the car. For street applications, most drivers will never bother to change rates or perform the adjustments that make coil overs the prefered method of suspending a competition vehicle.

They do look freaking cool though!!

It all comes down to personal preference, application, and budget. There is no wrong or right answer to any of them.

Offline IMNCARN82

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #5 on: December 03, 2009 - 02:53:56 PM »
The RMS was very easy to install. It really balanced out the car.Being able to drive it with the RMS front end and SS leafs for a while.Then with the coils on all fours really showed some performance gains.If I still had the factory front end...I'd do the rear first.Just because the 4 link is so much smoother and easily adjustable.Maybe a coil/UCA conversion? I'm not a racer,Just like to corner.Shocks are the key I think. Someday I'll upgrade,But for now it's QA1 single adjustable. I drive on roads with tight hairpin turns with drastic grade shifts.Never a noise,or a problem. Been very pleased with RMS.  :2cents:   HP2 here is the best I know with the stuff...He gave it to me straight. He's right. The factory stuff is very,very good set up properly.I just wanted the custom aspect.Happy to answer any specific questions. But I'm no expert.These guys here have helped me out the most.I trust them.   R/T
'73 340 5 speed,RMS,BAER,... "Supercuda" (O[   ]||||[   ]O)  
'69 Dodge Charger 383,Auto                  (OiiiiiiiiiiIiiiiiiiiiiO)
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Offline gkring

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #6 on: December 03, 2009 - 03:29:25 PM »
Personally if you don't KNOW you need or want the XV level II stuff then either stick with their level I setup which handles great, is already speced out perfectly, and plenty affordable, or go with the alterkation which is way easier to install, performs just as good as anyone elses setup and better than any of us truly need or can use. The level II is a fabrication nightmare whereas Bill's stuff is a bolt in deal. Both will still have your tires as the weak link in handling performance. With Bill's stuff you also have the option of going air ride later if you decided.
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Offline wiging19

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #7 on: December 03, 2009 - 11:16:30 PM »
It really is nice that we have people in the forums who are so well informed.  I really enjoy reading your input and it really helps a person make an informed decission if your thinking of going down any of these paths.  Thanks you all.  :popcorn:

Offline QuartermileCuda

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #8 on: December 04, 2009 - 09:24:54 AM »
IMNCARN82 - I am glad you said that you would do the rear end first. I was wanting to do the rear first but figured that I should maybe do the front. But now I will defiantly do the rear first and I think I am going to go with the RMS. Only thing I am curious about is why none of the kits come with a sway bar setup. Do they just not need them because of how the setups are?
71 340-6 AAR 'Cuda Concept.
(Was a 73 Barracuda)
69 Dodge Charger 383 4 speed. T5 Copper Needing Resto!

340/416 Stroker, 904 w/ Gearvendors gear splitter, 3:91 Posi.
Cant wait to see how fast she'll move. ;)

Offline IMNCARN82

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #9 on: December 04, 2009 - 03:38:16 PM »
I asked Bill about a sway option on the rear.He said it wasn't needed.  The rear is 1/2 the price,And it made a big difference. Easily adjustable. I felt the front went in easier than the rear,But it's all bolt in.The rear takes some welding and set-up for the upper tabs. But not too bad.I don't know much... And I did it.  I see XV lowered their prices. Hmmmm. 
'73 340 5 speed,RMS,BAER,... "Supercuda" (O[   ]||||[   ]O)  
'69 Dodge Charger 383,Auto                  (OiiiiiiiiiiIiiiiiiiiiiO)
13' Challenger R/T BlacktoP  6spd.   (OO________OO)
Boulder CO
Robert    "cuda bob"

Offline QuartermileCuda

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #10 on: December 04, 2009 - 04:30:41 PM »
Thats good to hear that I wouldn't need a sway bar. One less thing I need on my list.

And yeah XV did lower it a bit. But it still is a bit more requires a lot more welding. And I can only imagine how bad it would be to fix if something ended up being off in all of those just welded brackets.
71 340-6 AAR 'Cuda Concept.
(Was a 73 Barracuda)
69 Dodge Charger 383 4 speed. T5 Copper Needing Resto!

340/416 Stroker, 904 w/ Gearvendors gear splitter, 3:91 Posi.
Cant wait to see how fast she'll move. ;)

Offline IMNCARN82

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #11 on: December 04, 2009 - 07:08:14 PM »
I liked the slim/trim look of the RMS stuff. The price is manageable. It performs.It's simple,easy to understand and install/service.  It's taken my car to a whole new level.You will really want the front end someday.I did one end one year.Then the other end the next year.Couldn't do it all at once.My car has to be operational. R/T
'73 340 5 speed,RMS,BAER,... "Supercuda" (O[   ]||||[   ]O)  
'69 Dodge Charger 383,Auto                  (OiiiiiiiiiiIiiiiiiiiiiO)
13' Challenger R/T BlacktoP  6spd.   (OO________OO)
Boulder CO
Robert    "cuda bob"

Offline abodyjoe

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #12 on: December 04, 2009 - 09:33:04 PM »
 have the RMS alter-k and street lynx kits in my dart. The front end is a true bolt in. It practally fell into the car. I would highly recomend the power steering option. Well worth the money. The rear requires some welding but nothing too difficultso even if ya have to hire some one to weld for ya the damage shouldn't be bad at all. Both front and rear are well designed and very user friendly.   I did the front first and would recommend doing the front first but that's really just personal preference.

 RMS customer service is second to none which makes things a little nicer too.


As far as xv goes I honestly don't know anyone running their set up. Haven't seen anyone on any of the forums I'm on running that set up either. I do know it has always been crazy money for their set up. Their prices have come down big time. Kinda have to ask why.  The xv set up also requires a ton more work to install.
« Last Edit: December 04, 2009 - 09:36:16 PM by abodyjoe »

Offline jvike

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #13 on: December 05, 2009 - 07:50:38 AM »
Hi, I did the rear first, I put on the XV rear setup, and it totaly transformed my car! But I have to say; don't run 15" wheels! They can't justify the suspension. Choose to wait with the wheel becouse I wanted to buy the front suspesion and new brakes before I ordered some custom backspace wheels. XV setup has a swaybar.
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Offline QuartermileCuda

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Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #14 on: December 07, 2009 - 08:33:17 AM »
Did you do the XV suspension yourself? Do you know how it was to measure and weld everything in place? And what kind or wheels did you get? where from? If you don't mind me asking.
71 340-6 AAR 'Cuda Concept.
(Was a 73 Barracuda)
69 Dodge Charger 383 4 speed. T5 Copper Needing Resto!

340/416 Stroker, 904 w/ Gearvendors gear splitter, 3:91 Posi.
Cant wait to see how fast she'll move. ;)

Cuda-Challenger.com

Re: Reilly Motorsports or XV Motorsports rear Suspension?
« Reply #14 on: December 07, 2009 - 08:33:17 AM »