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Strut Bar.. main function?


Ice34_y2k
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can anyone tell me mor info??? i onli know is to stablise the car... is it advisable to install it on a new car?

 

asking for learning purpose... thank u..

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Strut bars come in the form of front struts & rear struts. Front struts r usually install & stretches across the engine bay while the rear struts r install in the boot. Basically it is to minimise body roll during cornering. New car or old car oso can install [:)]

Edited by Atlantis_boi
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Hi Atlantis_boi,

 

Am driving an Airwave and the body roll is quite obvious and irritating at times. So I have been reading up on this topic. Apparently, from my understanding, body flex is the result of body roll. Experts, please correct me if I am wrong. Just want to learn more too :D. [scholar]

 

You see, when the car makes a right sharp corner (maybe 90 degrees), the lower Center Gravity(CG) is shifted towards the right. Hence causing most of the weight on the car to move towards that direction. Subsequent behaviour of such will make the car chassis to flex because of the shift in weight. If the right height is high, body roll will be great (take a look at how SUV's makes a turn) and hence body flex is higher. The opposite is achieve for lower ride height.

 

Of course, there are more than meets the eye for reducing body roll and body flex. Some believe in lowering the ride height, changing the tire width, struts bar and etc. I believe that it is a chain reaction. That'll be another thread :D[gossip]

 

Cheers

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ARB is also known as sway bars. Search MCF for sway bar and you will come across many fine articles. Strut bars as explained reduces body flexing. Generally you do not need strut bars unless your suspension is stiffened and all the forces from those hard turns get transmitted up to the chassis. Only then you need the strut bars to keep everything in place. Else, most of the time stock suspensions take care of all these evil forces.

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Body roll and body flex 101 [:p]

 

body roll is the sidewards angle that the car is on (i.e. the difference in height between the left and right side of the car due to conering forces).

 

Body flex (a.k.a. chassis flex, chassis twisting) is the twisting of the vehicles frame/chassis.

 

Strut bars are mounted to the top of the strut towers to reduce the amount of twisting (as the 2 towers now move in relation to each other as well as to the chassis).

 

Sway bars do the same thing but at the bottom of the suspension components.

 

Both strut and sway bars reduce body roll by a tiny bit as the movement of the suspension bits can't vary as much as from each other as before.

 

there are also chassis braces than further reduce the body flex. Depending on make, they are mounted either under the car and usually connect the chassis rails to each other, and/or across the interior (usually mounted at the bottom between the A and/or B and/or C pillars). there is also a version that mounts the A and/or C pillars to the frame ahead of them under the quater panels. Another way would be to seam weld and/or pop rivet all the joints in the car's frame. Most roll cages do the job of the interior braces as well.

 

the only way to really reduce body roll by a fair bit would be to lower the centre of gravity and by using stiffer shocks/springs.

 

If you're wondering. most profession drift and rally cars have all the mods stated in this post. I dunno about other motorsports though.

 

Edit: noticed genies post, but considering how much of ricers most sg boyracers are, i doubt that most would listen to it.

Edited by Elfenstar
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Neutral Newbie

should not give u a problem, i only have a tower strut bar on the front of the car.. handling really improved. considering arb as next install..

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My experience is that strut bars didn't do anything to improve my car other than to make the engine bay look a bit better. Didn't feel a single thing man.

 

The effect of sway bars, on the other hand, is "wah lao eh"! Handeling improved tremendously. Car corners much more flat. I have 3 settings on my sway bars and I put max stifness at the rear and middle stiffness in front. My cornering speeds really improved by a lot. I also feel much safer as the cat rolls very little now.

 

I would encourage you to get the ARB's. The gains are easily experienced.

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