Tubular or boxed LCA?
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Junior Member
Joined: May 2001
Posts: 39
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From: Cali
Car: 1986 IROC
Engine: 305 TPI
Transmission: TH700r4
Tubular or boxed LCA?
Okay I would think that boxed might have more strength but is it really worth it to get them? I am going to start taking the car to the drag strip. And i am planning on doing a LT-1 Conversion (maybe convert that to LT-4) with in this year, so would it be better to get boxed?
Also, what would you recommend for LCAs? BMR or Spohn? My friend says that BMR is good but all I see here mostly is to go with Spohn.
Thanks
Marty
Also, what would you recommend for LCAs? BMR or Spohn? My friend says that BMR is good but all I see here mostly is to go with Spohn.
Thanks
Marty
i love my kenny browns.....this is a primarily spohn site. hence the sponsorship. 
the reason i like mine more is in the overall design and less vibration....cheaper as well.
if you can spring for the tubular that's the way to go.

the reason i like mine more is in the overall design and less vibration....cheaper as well.
if you can spring for the tubular that's the way to go.
I would think boxed would be stronger but I think its all on design and material. I personally like tubular cuz its lighter and it looks nicer than boxed. I have Spohn LCAs and they hold up well. I hear nothing but good news bout BMR.
part for part KB is the exact same thing except the end that mounts to the body uses a different type of bushing that is more quiet.
i agree with supporting steve since his products are competatively priced and he seems to be very knowledgable. there are other things out there though.
when i bought mine steve didn't have any of those items, strictly the boxed setup. KB was one of the first to offer the tubular let alone a 2 way adjustable. i love mine, that's all i can tell you. either way i don't think you'll go wrong.
i agree with supporting steve since his products are competatively priced and he seems to be very knowledgable. there are other things out there though.
when i bought mine steve didn't have any of those items, strictly the boxed setup. KB was one of the first to offer the tubular let alone a 2 way adjustable. i love mine, that's all i can tell you. either way i don't think you'll go wrong.
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Joined: Jul 1999
Posts: 1,294
Likes: 1
From: was: Palmdale, Ca
Car: was: 1984 Camaro Z28
Engine: was: L69
Transmission: was: 700-R4
Rectangular is more suited to drag racing. They are stronger than tubular and can put down the power (from the weight transfer) better than an equally built/designed tubular bar. Although, they do not flex, causing binding in the rear suspension.
Tubular is more suited to street/Auto-X/Road Racing. They are more flexible and better suited for cars that will take turns aggressively. They flex upon weight transfer more than a comparable rectangular bar. Since they allow flexability, they will not bind when taking corners hard.
My SS has a drag race setup, so it will have rectangular suspension pieces.
My Z28 will be for road racing, so it will have all tubular suspension.
Tubular is more suited to street/Auto-X/Road Racing. They are more flexible and better suited for cars that will take turns aggressively. They flex upon weight transfer more than a comparable rectangular bar. Since they allow flexability, they will not bind when taking corners hard.
My SS has a drag race setup, so it will have rectangular suspension pieces.
My Z28 will be for road racing, so it will have all tubular suspension.
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iTrader: (8)
Joined: Jul 2001
Posts: 3,204
Likes: 7
From: New Boston, IL, USA
Car: '90 Formula 350
Engine: 383 SBC
Transmission: ProBuilt S/S 700-R4 & ACT 9" Stall
Axle/Gears: 10 bolt 3.23
I like my spohn adjustable lcas, throw on some of steves realocation brackets and you will able to see a big difference.
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