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Re: XV level II front suspension. Who is using it?
[Re: autoxcuda]
#1770362
03/17/15 04:42 PM
03/17/15 04:42 PM
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Joined: Oct 2005
Posts: 44
Mosjøen, Norway
jvike
member
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member
Joined: Oct 2005
Posts: 44
Mosjøen, Norway
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Quote:
Nice weight percentage. Do you have a fiberglass hood and rear mounted battery?
Yes. Optima Yellowtop.
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Re: XV level II front suspension. Who is using it?
[Re: cdoublejj]
#1770363
03/17/15 10:55 PM
03/17/15 10:55 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Quote:
Again the frame rails don't go all the way through on a unibody, this is why i like the UScartool frame rail connectors/stiffening kit so darn much. I have heard only good things about them.
Good to hear, I just ordered their entire chassis stiffening kit for my Barracuda. 
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Re: XV level II front suspension. Who is using it?
[Re: GoodysGotaCuda]
#1770364
03/17/15 11:10 PM
03/17/15 11:10 PM
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Joined: Sep 2014
Posts: 37
NY
XVracing
member
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member
Joined: Sep 2014
Posts: 37
NY
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Quote:
Quote:
Again the frame rails don't go all the way through on a unibody, this is why i like the UScartool frame rail connectors/stiffening kit so darn much. I have heard only good things about them.
Good to hear, I just ordered their entire chassis stiffening kit for my Barracuda.
Before they had there's, XV had their own system, ours works a little bit better....
We have the engine compartment brace they don't have....
I hope I'm not over stating the obvious, but we have it all from the chassis stiffening package, to the suspension kit, to the brake kits, I have rims and steering columns coming to the website soon... And everything was engineered to work together, tested, and bench marked.
This is the new 2 piece E Body
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Re: XV level II front suspension. Who is using it?
[Re: XVracing]
#1770368
03/18/15 12:02 AM
03/18/15 12:02 AM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Quote:
Before they had there's, XV had their own system, ours works a little bit better....
Do you have some data or competitive testing to draw that conclusion?
I did look at XV before ordering the US Car Tool parts. The pricing was close, but XV didn't offer [at least from what I saw] the torque box set, which I need. I had to make one order and pay shipping from one vendor.
The engine bay brace is a nice piece, but I will be building my own for my car.
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Re: XV level II front suspension. Who is using it?
[Re: GoodysGotaCuda]
#1770369
03/18/15 12:15 AM
03/18/15 12:15 AM
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Joined: Sep 2014
Posts: 37
NY
XVracing
member
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member
Joined: Sep 2014
Posts: 37
NY
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Quote:
Quote:
Before they had there's, XV had their own system, ours works a little bit better....
Do you have some data or competitive testing to draw that conclusion?
I did look at XV before ordering the US Car Tool parts. The pricing was close, but XV didn't offer [at least from what I saw] the torque box set, which I need. I had to make one order and pay shipping from one vendor. 
The engine bay brace is a nice piece, but I will be building my own for my car.
I thought everybody knew???
As a matter of fact, I believe the XV products were the only ones tested in this manner???
I would have to drag out the data, I have it somewhere, but here's a picture of the chassis stiffness being tested. They found they didn't need the torque boxes, the system met their criteria...
There's a video somewhere of the testing, they showed a before with a "X" of tape across the engine bay and you could see the tape go slack when the body was twisted, and after, only a slight bit...
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Re: XV level II front suspension. Who is using it?
[Re: XVracing]
#1770370
03/18/15 12:29 AM
03/18/15 12:29 AM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Quote:
Quote:
Quote:
Before they had there's, XV had their own system, ours works a little bit better....
Do you have some data or competitive testing to draw that conclusion?
I did look at XV before ordering the US Car Tool parts. The pricing was close, but XV didn't offer [at least from what I saw] the torque box set, which I need. I had to make one order and pay shipping from one vendor.
The engine bay brace is a nice piece, but I will be building my own for my car.
I thought everybody knew???
As a matter of fact, I believe the XV products were the only ones tested in this manner???
I would have to drag out the data, I have it somewhere, but here's a picture of the chassis stiffness being tested. They found they didn't need the torque boxes, the system met their criteria...
There's a video somewhere of the testing, they showed a before with a "X" of tape across the engine bay and you could see the tape go slack when the body was twisted, and after, only a slight bit...
Nice picture.
I was a bit more interested in how you concluded kit XV's was better than the US Car Tool...and now also how it was concluded torque boxes "aren't needed" on a leaf-sprung application.
As a fellow engineer, you know we like to see data, test constraints, targets, etc, more than talk. Not that you must to provide it or anything, but it would be nice to see what is driving your claims. 
Sure the US Car Tool video isn't the highest of caliber, but it does show their point in laymen's terms very well. A simple table of results in foot-lbs per degree/torsional stiffness as they added stiffening components and various weights would be easy enough to show which components did what for the car. 
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Re: XV level II front suspension. Who is using it?
[Re: GoodysGotaCuda]
#1770371
03/18/15 01:17 AM
03/18/15 01:17 AM
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Joined: Sep 2014
Posts: 37
NY
XVracing
member
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member
Joined: Sep 2014
Posts: 37
NY
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Quote:
Quote:
Quote:
Quote:
Before they had there's, XV had their own system, ours works a little bit better....
Do you have some data or competitive testing to draw that conclusion?
I did look at XV before ordering the US Car Tool parts. The pricing was close, but XV didn't offer [at least from what I saw] the torque box set, which I need. I had to make one order and pay shipping from one vendor.
The engine bay brace is a nice piece, but I will be building my own for my car.
I thought everybody knew???
As a matter of fact, I believe the XV products were the only ones tested in this manner???
I would have to drag out the data, I have it somewhere, but here's a picture of the chassis stiffness being tested. They found they didn't need the torque boxes, the system met their criteria...
There's a video somewhere of the testing, they showed a before with a "X" of tape across the engine bay and you could see the tape go slack when the body was twisted, and after, only a slight bit...
Nice picture.
I was a bit more interested in how you concluded kit XV's was better than the US Car Tool...and now also how it was concluded torque boxes "aren't needed" on a leaf-sprung application.
As a fellow engineer, you know we like to see data, test constraints, targets, etc, more than talk. Not that you must to provide it or anything, but it would be nice to see what is driving your claims.
Sure the US Car Tool video isn't the highest of caliber, but it does show their point in laymen's terms very well. A simple table of results in foot-lbs per degree/torsional stiffness as they added stiffening components and various weights would be easy enough to show which components did what for the car.
First off, the tests on the XV stuff was performed by a independent company called Multimatic, not in house. The fixture as you can see from the picture is something that is designed for this type of test by industry engineers. This company does all types of analysis for the OEM's.
Being an engineer, then you understand that the test rig and standards are as important as the data... Unless you have a baseline, and a standard, your data is only applicable to that particular vehicle..
To answer your question, I did find the system achieves 9800lbs per degree of twist... Not sure how many crankshafts that is? 
And is the real life load on the vehicle from the bumper brackets?
Don't get me wrong, I'm sure it's better than not having anything, but I'm pretty sure the stamped pieces they have don't compare to our mandrel bent tubing inner fender braces and lower radiator supports...
By the way, our rear suspension is hung off the front leaf spring perch as well, never had any issues without torque boxes... The frame connector is picking up that connection...
Really good discussion, thank you for the opportunity...
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Re: XV level II front suspension. Who is using it?
[Re: XVracing]
#1770373
03/18/15 03:28 AM
03/18/15 03:28 AM
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Joined: Dec 2010
Posts: 12,375
SoCal
MuuMuu101
I got lucky at Woodward!
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I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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Quote:
Quote:
Quote:
Before they had there's, XV had their own system, ours works a little bit better....
Do you have some data or competitive testing to draw that conclusion?
I did look at XV before ordering the US Car Tool parts. The pricing was close, but XV didn't offer [at least from what I saw] the torque box set, which I need. I had to make one order and pay shipping from one vendor.
The engine bay brace is a nice piece, but I will be building my own for my car.
I thought everybody knew???
As a matter of fact, I believe the XV products were the only ones tested in this manner???
I would have to drag out the data, I have it somewhere, but here's a picture of the chassis stiffness being tested. They found they didn't need the torque boxes, the system met their criteria...
There's a video somewhere of the testing, they showed a before with a "X" of tape across the engine bay and you could see the tape go slack when the body was twisted, and after, only a slight bit...
Nice torsional rigidity test. I'd be curious about the numbers myself. That reminds me when we used to do testing for my SAE Baja car. Ours was similar but scrap metal was utilized instead. 
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Re: XV level II front suspension. Who is using it?
[Re: 72Swinger]
#1770374
03/18/15 07:34 AM
03/18/15 07:34 AM
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Joined: Sep 2014
Posts: 37
NY
XVracing
member
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member
Joined: Sep 2014
Posts: 37
NY
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Quote:
Love that piece Chris! IMO the heims kill at least some of its effectiveness though! I think they need SOLID connection my friend. Something like this
http://www.tmrcustoms.com/store/index.ph...863638076e7b152
Or a setup like the Hotchkis Dart.
Actually, the Heim has no effect on the rigidity orientated the way it is. If is was mounted horizontally, then I would agree..
What it does do is allow the bar to be adjusted to fit every vehicle perfectly, because we know none of these cars are exactly the same, and that fit has a bigger impact on how well the bar works.
The Hotchkis Dart, has tubes welded from the frame rails to the firewall, and cage also, at that point you would better off clipping the car with some box tubing and be done with it. Really like comparing apples and oranges....
MuuMuu, maybe you missed it, but I posted. I found that they achieved 9800lbs per degree of twist, which I believe is better than a C7 Corvette..
CR
Last edited by XVracing; 03/18/15 10:36 AM.
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Re: XV level II front suspension. Who is using it?
[Re: XVracing]
#1770376
03/18/15 02:57 PM
03/18/15 02:57 PM
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Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
Mopar Mitch
pro stock
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pro stock
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
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Chris -- Does the E-body upper brace you've picture fit with a SB factory 6-pack setup (incldg the factory air cleaner base)?
Also, what's the weight of the upper brace? (Adding more weight to the car, in particular the front end, is a concern to me.)
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
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Re: XV level II front suspension. Who is using it?
[Re: Mopar Mitch]
#1770377
03/18/15 06:14 PM
03/18/15 06:14 PM
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Joined: Sep 2014
Posts: 37
NY
XVracing
member
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member
Joined: Sep 2014
Posts: 37
NY
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Quote:
Chris -- Does the E-body upper brace you've picture fit with a SB factory 6-pack setup (incldg the factory air cleaner base)?
Also, what's the weight of the upper brace? (Adding more weight to the car, in particular the front end, is a concern to me.)
I believe we test fit that brace in just about everything, and with the removable bar, it allows even more of an adjustment.
The only installed pictures I have are with GenIII Hemi's, but this should give you an idea. Call me in the shop, and I can give you some measurements.
The shipping weight with the box is about 17lbs, so figure 15lbs or so...
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Re: XV level II front suspension. Who is using it?
[Re: Mopar Mitch]
#1770378
03/18/15 08:45 PM
03/18/15 08:45 PM
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Joined: Oct 2005
Posts: 44
Mosjøen, Norway
jvike
member
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member
Joined: Oct 2005
Posts: 44
Mosjøen, Norway
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Quote:
Chris -- Does the E-body upper brace you've picture fit with a SB factory 6-pack setup (incldg the factory air cleaner base)?
Also, what's the weight of the upper brace? (Adding more weight to the car, in particular the front end, is a concern to me.)
I have a 340 (4bbl) and had to modify the XV engine brace to make it fit around the distributor. Easy fix.
Also I've uploaded the entire XV DVD on youtube if y'all want to see the engineering behind the products.
XV DVD
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Re: XV level II front suspension. Who is using it?
[Re: jvike]
#1770379
03/18/15 10:44 PM
03/18/15 10:44 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Quote:
Also I've uploaded the entire XV DVD on youtube if y'all want to see the engineering behind the products.
XV DVD
Thanks, watched 'em all. Very interesting
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