Questions about Lacetti Stabilizer

Deathwind · Post by **Deathwind** » Fri Feb 24, 2006 9:38 am

Hi. I've heared a rumor about Lacetti Stabilizer bar.

The rumor is that the export version of Lacetti which has 1.8L engine inside's stabilizer bar's diameter is different.

So I want to know the truth.

Does anybody has heared about this or can anyone check the diameter of 1.8L Lacetti's stabilizer bar please?

Post by **PrecisionBoost** » Sat Feb 25, 2006 4:30 am

My Lacetti (Optra 5 here in Canada) came with a 2.0L U20SED engine.

I have a spare stabilizer bar.... had some fun... wrecked the stock one.

Honestly.... it's not very big... I was thinking it's only 18mm.... I will check it out if I end up going to my shop tommorow.

Post by **PrecisionBoost** » Tue Feb 28, 2006 2:02 am

My Optra 5 (Lacetti) with the 2.0L has a solid steel stabilizer bar that is 18mm in diameter.

What size is the Korean market Lacetti stabilizer bar?

Audacity Racing · Post by **Audacity Racing** » Tue Feb 28, 2006 2:04 am

the one's i'm making are 25mm solid steel

i can go as high as 38 if you really wanted it... but your suspension travel would be super rough i think. i'm surious to know the asian market spec as well

Post by **PrecisionBoost** » Wed Mar 01, 2006 12:33 am

Do you think there would be any disadvantage to making it out of carbon fibre?

How about stainless.... it has good flexibility and looks damned fine.

I was even thinking that wrapping carbon fibre around the stock 18mm bar would stiffen it quite a bit without adding much weight.

Audacity Racing · Post by **Audacity Racing** » Wed Mar 01, 2006 1:05 am

the problem with CF is that it doesn't flex very much... it's far more rigid. now, a solid carbon rod (or matrix) is different (think the "Bowflex" excercise machine).

i honestly don't know about stainless in that respect... in my initial calulations, i was doing a heat treated 4130 chrome-moly steel bar with a stiffness calculated to be nearly double that of the stock one. you could heat treat to any desired hardeness, but brittleness becomes a factor after so long.

personally, i'm working on a torsion bar for the lanos

it uses varying stiffness springs to change the roll rate. you change the spring by adding plates to it (it's merely a set of strip of metal that twist).