[EscortSportage]

Is there any difference in the stock rear swaybar from a 89 gt to a 93 gt?

[EscortSportage]

Nvm i found a post on here and mm that has all the info

[john98]

Do you have the link?

[EscortSportage]

Yea standby

[EscortSportage]

OEM Mustang Sway Bar Sizes

[john98]

Cool thanks

[jessemachone]

and they can all be thrown in the trash. that bar hardly does a thing because the middle section isn't tied to anything - it is just weight that flexes under the back your your car.

[ReverendDexter]

Originally Posted by jessemachone and they can all be thrown in the trash. that bar hardly does a thing because the middle section isn't tied to anything - it is just weight that flexes under the back your your car.

Not true at all.

It doesn't matter that it's not tied to anything besides the control arms. All it is is a spring that adds resistance against control arms having any relative angle between them. Tying it to the body doesn't change that, it just means that you need endlinks and you've added some bushing resistance to the jounce/droop motion of your rear axle; neither of those helps the bar do it's job any better.

Go set up a figure-8 in a parking lot, run it with the rear bar, then run it without the rear bar. You'll see immediately how much difference it makes.

Now, the flipside of this is if you're a drag racer and you've pulled your front bar, your relative roll stiffness is such that you don't need the rear bar; in fact, with so little front roll stiffness, you probably SHOULD pull your rear bar to keep the car in some semblance of balance.

[jessemachone]

I tossed the bar - noted no difference on the street where I spend most of my time driving. I do have my front bar and there is a good bit of difference with it hooked up vs. not hooked up. (coil over springs 275 lbs/in)

When I put anything on the rear, it will be an anti roll bar and I will only hook it up at the 1/4 mi track when I start going.

If the rear bar was tied to the rear end it would do a lot better. As far as my post - yes, it isn't true.... I suppose you can notice a miniscule ammount of a benefit from it but not enough for me to run one.

[ReverendDexter]

Originally Posted by jessemachone I tossed the bar - noted no difference on the street where I spend most of my time driving. I do have my front bar and there is a good bit of difference with it hooked up vs. not hooked up. (coil over springs 275 lbs/in) When I put anything on the rear, it will be an anti roll bar and I will only hook it up at the 1/4 mi track when I start going. If the rear bar was tied to the rear end it would do a lot better. As far as my post - yes, it isn't true.... I suppose you can notice a miniscule ammount of a benefit from it but not enough for me to run one.

In other words, you drag race, not twisty, so you don't push your car to the point where it understeers. I do, and I can tell you that rear bar makes a HUGE difference. On the street? Of course you won't notice it. You (universal you, not you specifically, Jesse) just don't drive hard enough on the street to break lateral traction.

[jessemachone]

I brake traction from time to time and just go with it.... it isn't often and I learned how to drive through it in rein and snow growing up on the east coast. I'm sure I would be better trained if I took some professional driving classes.

perhaps I'll look into a system that will tie everything together in the rear and allow for slight roll so I can beamenacetosouthcentralwhiledrinkingmyjuiceintheho od

[EscortSportage]

Nice, i was planning on buying mm frnt and rear swaybar but 600 bucks for them...so i stared doing research on stock bars

I want to go smaller up front and bigger in the rear and see how she feels

[EscortSportage]

I have no swaybars in now and i hate it, surprisingly she grips good and handles good (coilovers frnt and rear) but still i want more. The stock 89 frnt bar is pretty beefy and the 89 rear is tiny

Ford does this because the general population it is easier to control understeer than oversteer plus oversteer can get scary

So im thinking 27mm up front and 27 to 31mm in the rear

[hsean]

i have a ford motorsport one in the front and it is bigger in diameter i have a steeda rear sway bar that ended up not working for me for some reason.i bought it used locally and i think that it is for some other year mustang.if i go with a stock diameter am i asking for problems with oversteer or should i try to put a thicker one out back too.this car will strictly be a driver no road track or racing.

[john98]

Generally if you have a bigger one ine the front you have understeer, a bigger bar in the rear and you have oversteer. If you still have the stocker for the rear I'd just leave it alone, should be fine for street driving

[EscortSportage]

Yea^. If anything u want to put a smaller one in the front leave the one u have now in the rear

[ReverendDexter]

Originally Posted by EscortSportage Yea^. If anything u want to put a smaller one in the front leave the one u have now in the rear

Well, you have to understand why Ford put such a ginormous stock front swaybar on these cars. Look at the front roll center... it's low, and it gets lower when you drop the ride height. That means that there's not a lot of natural roll resistance and you have to add it via a big-ass front bar. If you fix the roll-center location (though taller ball-joints and/or relocating the A-arm pickups) then you definitely don't need all that added roll resistance, and you can toss that huge front bar in favor of something smaller and lighter to get some much needed front grip.

[Macunicorn]

Originally Posted by ReverendDexter Well, you have to understand why Ford put such a ginormous stock front swaybar on these cars. Look at the front roll center... it's low, and it gets lower when you drop the ride height. That means that there's not a lot of natural roll resistance and you have to add it via a big-ass front bar. If you fix the roll-center location (though taller ball-joints and/or relocating the A-arm pickups) then you definitely don't need all that added roll resistance, and you can toss that huge front bar in favor of something smaller and lighter to get some much needed front grip.

Hmm so by raising the spindle height via extended ball joints and moving the front arms forward this would increase steering. And then moving to a smaller diameter front bar would also help if I am correct.

Could you increase steering with a softer front spring rate as well.
Wouldnt a heavier spring increase understeer???????

[ReverendDexter]

Mac - not moving the arms forward, moving the pickup points up. The idea is that at rest, the control arm should slope slightly downward toward the outside.

And I'm not sure what you mean by "steering" in this context. I take that to mean steering angle, which this has no effect on.

[EscortSportage]

This is why u need shorter swaybar endlinks on a lowered stand cuz the frnt swaybar will rotate with the stock length, this is be less effective for anti roll