Any Yaris hatch rear suspension tweeks?

[keesue]

Looks like that under-the-bumper bar was for additional chassis rigidity not for suspension tuning as such; and, the torsion bar is, in fact, the sway bar - confirming the above.

[Pars]

Originally Posted by keesue

Looks like that under-the-bumper bar was for additional chassis rigidity not for suspension tuning as such; and, the torsion bar is, in fact, the sway bar - confirming the above.

If the bar up front is for chassis rigidity, it should be called a strut bar, not a sway bar.

But it's good to know that the Yaris naturally has good balance without the aid of swaybars. That way, it can be farther be tweaked by sprinkling some swaybars or extra strut bars. Personally, I think it's perfect as is, but there's those who probably want a tail happy car for the race track. In which case, be careful, the chassis is a bit on the short side. I used to have a 84 CRX with Jackson Racing treatment. The car was incredibly quick around the turn, but it was just a quick to rotate on you without any warning.

[keesue]

[QUOTE=Pars;41736]If the bar up front is for chassis rigidity, it should be called a strut bar, not a sway bar.

Sorry, I was referring to the rear under-the-bumper bar.

[Biggie™]

Originally Posted by Pars

That way, it can be farther be tweaked by sprinkling some swaybars or extra strut bars.

Front strut tower bars do nothing for the Yaris. Look how close the top of the strut is to the firewall! They only add weight... The limited amount of body flex our very ridged cars do have wont be noticeable until you replace all the soft rubber bushing with race only metal bushings. The strut tower bar is just a favorite of the ricer crowd do to it's low cost and ease of installation, your suspension dollars will be better spent elsewhere on the NCP91 chassis.

Also, a swaybar is just a stretched out spring... Randomly adding more swaybar wont help much. You really need to plan out suspension modifications with a good solid goal in mind. If you want a sportier driving experience, upgrade to a performance suspension setup by HKS, Cuscu, Tein or TRD. The right spring/shock setup will more than likely solve any issues. Only after those are sorted out should you start thinking about loosening or tightening up the car with a swaybar.

Look at what TRD Japan offers for their spec Vitz/Yaris race cars... No swaybar. No strut tower bar. Only Bushings, Springs and Struts/shocks. I'm not saying swaybars are bad/useless, but they shouldn't be your first suspension modification.

[Russelt3hPirate]

Originally Posted by Biggie™

Look at what TRD Japan offers for their spec Vitz/Yaris race cars... No swaybar. No strut tower bar. Only Bushings, Springs and Struts/shocks. I'm not saying swaybars are bad/useless, but they shouldn't be your first suspension modification.

sway bars are far from perfect as they are a band aid, designed to help super soft springs do a better job.