Tubular vs. Boxed LCA's
12-10-2007, 12:18 PM
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Tubular allows for use of rod ends. Boxed usually only has poly or rubber mounts. As for strength, then it depends on wall thickness. But, given the same wall thickness, a tubular will be stronger in most cases.
12-10-2007, 12:49 PM
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Personally I prefer the designs where the bushing is
"captive" inside the native steel (box style, or stock).
No depending on saddle pipe welds, not to break. Of
course I'm riding around with a tubular K member...
but my LCAs are boxed stockers.
"captive" inside the native steel (box style, or stock).
No depending on saddle pipe welds, not to break. Of
course I'm riding around with a tubular K member...
but my LCAs are boxed stockers.
12-10-2007, 02:28 PM
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I don't think whether it's stronger or not is even an issue. The thing I'd be more concerned with is rod ends or poly ends and weight, adjustability. I haven't heard of any adjustable boxed arms.
From what I've learned is that poly gives you more sound dampening and cusion but not much range of movement while rod ends are noisier but give you a lot of range of movement since the hole can slide around (yeah bad explaination)
From what I've learned is that poly gives you more sound dampening and cusion but not much range of movement while rod ends are noisier but give you a lot of range of movement since the hole can slide around (yeah bad explaination)
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12-11-2007, 02:05 AM
#8
According to what I've been told (I think by Sam), the boxed LCA's (I have the Hotchkis LCA's) can bind up during suspension travel on sharp turns/etc due to the bushings 'cos they're designed more for the road, drag strip and work better on up/down movement and are not as flexible when the axle is at an angle to the body (stock rubber 'gives' a lot more than the aftermarket/poly bushings). He recommended the Poly/rod end combo units (they're usually tubular) for good handling 'with' some sound absorption.
12-11-2007, 10:04 AM
#9
But in the case of any LCA that uses poly bushings at both ends, that's true. Doesn't matter if it's boxed or tubular. It's the bushings that cause the issue.
I absolutely do recommend poly/rod combos for the best axle articulation while still getting rid of bushing and arm wind-up itself.
I absolutely do recommend poly/rod combos for the best axle articulation while still getting rid of bushing and arm wind-up itself.
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Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
12-11-2007, 02:18 PM
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Edelbrock does make a boxed LCA for 4th gens with a spherical bearing installed at both ends. But for the price of this, and the cost/bother to replace those bearings when they do wear out, why not just go good double rod-ended to begin with (and have the adjustability as well)??
12-11-2007, 02:32 PM
#11
Exactly right.
You could buy Edelbrock's which use a spherical bearing on one end and a poly on the other, made of mild steel. They run about $240 a set.
But why? After all, we can do UMI's for $179.00. http://www.stranoparts.com/partdetai...D=18&ModelID=7
They use a rod-end which is easier and more cost effective to replace if the need arises. And for $209 you can get them made from even lighter Chrome-Moly.
You could buy Edelbrock's which use a spherical bearing on one end and a poly on the other, made of mild steel. They run about $240 a set.
But why? After all, we can do UMI's for $179.00. http://www.stranoparts.com/partdetai...D=18&ModelID=7
They use a rod-end which is easier and more cost effective to replace if the need arises. And for $209 you can get them made from even lighter Chrome-Moly.
__________________
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
www.stranoparts.com --814-849-3450
Results matter. Talk is cheap. We are miles beyond the success anyone else has had with the 4th gens, and C5, C6, C7 Corvettes,
10 SCCA Solo National Championships, 2008 Driver of they Year, 2012 Driver of Eminence
13 SCCA Pro Solo Nationals Championships
2023 UMI King of the Mountain Champion
