Lightweight sway bar for 240SX

[a_ahmed]

Hey sorry for the thread revival,

I was doing some research on this myself.

I personally went with the tanabe front 30.4mm tubed swaybar...

I was recently looking at the new sikky v8 swap swaybar (32mm solid) although it weighs 20lbs! Apparently it had 414lbs/inch of deflection so being massive/blabla I figured wow this is interesting although heavy... I know how mighty LIGHT the tanabe is ... so I contacted tanabe just to compare how much deflection there bar is.

This is the answer I got:

Quote »Not a problem. However, the numbers I have are metric, so you'll have to calculate your conversions.Anyways, here's the rate: 567kg/0.05m And just for curiousity's sake, here's the rate for our rear bar: 22mm diameter hollow at 277kg/0.05m[/quote]I can't believe it, that would make it 635.010682 pounds / inch!

[Q45tech]

Bars don't mean much until you calculate the sloppiness in bushings and geometric losses in attachment points.

Typically the front and rear sway bars finally contribute 1/4 of their published rate at best to wheels.

Parallel with springs and both are [sum] is in series with wheels and tires before the springiness of road materials.

The 1000-1500 pounds per inch of wheels and tires actually soften the springs and sway bars by ~10-15% [depending on sidewall height].

Consider a 39mm front bar while 800# measured alone when mounted actually only delivers 200# and the first 1" does almost nothing because of rubber bushing compression.

Few realize than replacing rubber supports with urethane can increase oem bars in real world conditions by 33% or more. Just as adding a little rubber can soften an extreme bar to male city driving tolerable and not bend things.

[a_ahmed]

Getting back into here.

I wonder if tanabe has polyurethane bushings for their bars? Or better yet solid metal bushings....