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C4 front hollow bar options?

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Old 08-08-2008, 10:57 PM
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Lichen
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My home computer is an antique, so I can't post pictures. I will do it Monday. But with my coil-over conversion, I was able to use a solid 30mm from an 85 or 86 on my '93 with heim-links. It fit perfectly.
Old 08-09-2008, 08:12 AM
  #22  
jwt1603
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Originally Posted by TeamZ06
The Addco 1.25" OD tubular front swaybar was confirmed to me yesterday by the Addco tech service guy to be 3/16" wall thickness (0.875" ID), he also said the bar should otherwise have identical dimensions to the OE front bar

OK, so I'm not good at the conversion....is the 1.25" the same diameter as the 30mm? I installed poly bushings last year and don't really want to replace them due to a different diameter bar.

And if I'm reading this correctly the Addco bar should just bolt in?

Sort of stupid questions but I'd rather be sure.
Old 08-09-2008, 08:31 AM
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mrc24x
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If you order the 1.25" hollow bar from VBP it comes with the poly bushings.

It's a hair under 32mm. I switched from a 32mm solid to the 1.25" hollow and it did make a noticeable difference for my setup fwiw.
Old 08-09-2008, 12:49 PM
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jwt1603
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Originally Posted by mrc24x
If you order the 1.25" hollow bar from VBP it comes with the poly bushings.

It's a hair under 32mm. I switched from a 32mm solid to the 1.25" hollow and it did make a noticeable difference for my setup fwiw.
Sounds good. Now all I have to do is read the rule book, again, and see if it's legal.
Old 08-09-2008, 04:53 PM
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TeamZ06
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1.25" = 31.75 mm

99.99% any aftermarket C4 swaybar called 32mm is actually 1.25" because they're made in the US
Old 08-09-2008, 05:01 PM
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TeamZ06
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Originally Posted by Lichen
My home computer is an antique, so I can't post pictures. I will do it Monday. But with my coil-over conversion, I was able to use a solid 30mm from an 85 or 86 on my '93 with heim-links. It fit perfectly.
Really? I know where to get several early 30mm bars, but can't find the later ones.

Being 2" shorter on the center bar length does make the early 30mm bar a bit stiffer than the later 88-96 30mm bars, about 5%

The 1.25" Addco bar includes new poly bushings too, I'm pretty sure this is what VBP sells since they're an Addco distributor.

Last edited by TeamZ06; 08-09-2008 at 05:04 PM.
Old 08-11-2008, 10:26 AM
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Lichen
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Early 30mm swaybar on my '93.
Old 08-11-2008, 03:53 PM
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spoke to VB&P today

They purchase the raw 1.25" tubular bars from Addco, powdercoat them black, and add their own hardware. So it's the same 1.25" OD x 0.875" ID bar, but VB&P sells it for $30+ less than the typical Addco price.

They also sell a "32mm" solid front C4 bar that is actually 1.25" (31.75mm), it's approx. 25% stiffer than the 1.25" tubular bar



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