RSRacing Swaybar question / debate

I have his adjustable rear sway bar I would be willing to part with. Let me know!

Grant said:

I have his adjustable rear sway bar I would be willing to part with. Let me know!

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PM me, tell me what one you have, how big it is, if it has the rod ends, is it complete, etc. oh, and how much.

krazymaan said:

I already use his suspension, getting the uniball and watts (its in the mail). I am using their 30mm front swaybar with heim joint ends. My Toyo Proxes R1R's are 10" wide in the rear. So I hear a lot of mixed reviews about rear swaybars. First of all does anyone here use a 30mm front swaybar and a 26mm rear swaybar from RSRacing? Second, why would I Not want to use the rear swaybar with my setup?
Quite Honestly, my car rides awesome, it isn't like a lumber truck, it turns awesome and it hangs on to the road like glue. I went from stock to this setup and I don't feel like a rough rider like others claim. Especially with my 30mm front swaybar. I think the feel of the ride is totally awesome and I love it.

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If it turns awesome and hangs onto the road like glue, why would you want to put a bigger rear bar on it? That is going to loosen it up and give you oversteer.

Also, have seen stress cracks around the RARB mounts in the body from bigger bars in GTV6s - have no reason to expect that 75s have thicker metal in that area (ie under the rear seat)

Why would RSRacing manufacture a larger rear bar if it has no purpose according to some people around here? There must be a reason for it.

Still waiting on that PM from Grant. Hello Grant, where are you.

Grant at a event last mid week in too the weekend so I do not think he had been online.

Ok, I'll give him a few days before I order one

krazymaan said:

Ok, I'll give him a few days before I order one

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Are you sure you need it (does your car understeer... a lot?), or is it just for the sake of having something that other people don't?

Do you know how much stiffer a 26mm bar is over a 20mm bar? (almost twice the stiffness BTW)

Have you checked on chassis reinforcements for the mounts, or is it a 'cross your fingers' deal?

gtv27 said:

Do you know how much stiffer a 26mm bar is over a 20mm bar? (almost twice the stiffness BTW)

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Direct 'spring' comparisons can be made by taking the diameter of the original 'spring' (anti roll bar in this case) and raising it to the 4th power:

20x20x20x20 = 160000 (units aren't important).

And then comparing it to the new 'spring's' diameter also raised to the 4th power:

26x26x26x26 = 456976.

So the 26mm bar has 2.8561 time the stiffness of the 20mm bar.

If the links crack due to a big sway bar that is still ok. I've seen the mounts on the dedion break, now that is a bigger problem! But I believe the RS bar requires welding stronger mounts to the dedion.

It's all about adjust-ability. On some tracks you may need a little more over steer ( make it stiff), on some tracks may you need it totally soft in the rear (disconnect) and on some tracks you need it somewhere in between.

Yes, there will be reinforcements. I wouldn't do anything crazy.
Crazy would be me pondering the thoughts of installing a Toyota 2JZ engine with a jetrag 6 speed

Sorry, as Sly mentioned I was at Formula D Las Vegas this last week.

I would definitely go for the smaller of the 2 RS bars. Frankly, for the money the performatek rear bar seems to be a better value, even after converting to gtv6 style end links. It is also adjustable - or at least was back then.

I know the 26mm RS bar is too stiff because it would give me wheel spin on the tight turns (with a working LSD) and it ended up breaking one of the de-dion mounts. I had it welded back up. I also choose the 28mm front bar because the 30mm bar was retarded heavy and looked like it would tear the front mounting points apart, even with the backing plates welded on. Every other car I know uses hollow bars when the sways get to be over an inch....