Sway-bar recommendation..?

[Peer]

I wonder if someone can recommend a sway-bar upgrade for my '98 Boxster. The sway-bar upgrade that I did on my old car was the one I was most happy with:

http://ccrma.stanford.edu/~peer/roadster-swaybars.html

I don't care much for comfort, but rather how fast & well the car handles through the twisties. Any help/suggestions appreciated.

-- peer

[insite]

I wonder if someone can recommend a sway-bar upgrade for my '98 Boxster. The sway-bar upgrade that I did on my old car was the one I was most happy with:

http://ccrma.stanford.edu/~peer/roadster-swaybars.html

I don't care much for comfort, but rather how fast & well the car handles through the twisties. Any help/suggestions appreciated.

-- peer

i like the M030 bars; they're made by porsche and are fairly cheap.

[koya1893]

I wonder if someone can recommend a sway-bar upgrade for my '98 Boxster. The sway-bar upgrade that I did on my old car was the one I was most happy with:

http://ccrma.stanford.edu/~peer/roadster-swaybars.html

I don't care much for comfort, but rather how fast & well the car handles through the twisties. Any help/suggestions appreciated.

-- peer

i like the M030 bars; they're made by porsche and are fairly cheap.

May I suggest posting your question in the Boxster Racing forum. When I first got my car that was the first thing I wanted to do there's alot of discussion on this topic in that forum. One gentlemen I meet at one of the race at Baysock, Mic had a good set up which showed on his fast time on the track and I think many had follow his mod from what I read in the forum.

http://www.boxcar-racing.com/forum/

Ben

[John V]

I wonder if someone can recommend a sway-bar upgrade for my '98 Boxster. The sway-bar upgrade that I did on my old car was the one I was most happy with:

http://ccrma.stanford.edu/~peer/roadster-swaybars.html

I don't care much for comfort, but rather how fast & well the car handles through the twisties. Any help/suggestions appreciated.

-- peer

Upgrading the sway bars will make the body roll less through the turns, but there is a good chance you won't have more grip.

[Peer]

Insite wrote:

> i like the M030 bars; they're made by porsche and are fairly cheap.

Just called Sunset Imports about those, but they couldn't even tell me what size those were, much less what size the stock ones are on a '98. So do you happen to know how much thicker the front M030 are compared to the stock, and are they adjustable?

-- peer

[blue2000s]

Insite wrote:

> i like the M030 bars; they're made by porsche and are fairly cheap.

Just called Sunset Imports about those, but they couldn't even tell me what size those were, much less what size the stock ones are on a '98. So do you happen to know how much thicker the front M030 are compared to the stock, and are they adjustable?

-- peer

Here you go. The M030 isn't adjustable. John V is right on, you won't increase grip by just changing sway bars but you will increase responsiveness and reduce body roll. Keep in mind when comparing sway bars or any kind of torsion bar, that diameter, thickness and material determine stiffness. You can't tell stiffness just by diameter alone.

http://www.cb-racing.com/boxster_030.html

Edited February 10, 2007 by blue2000s

[John V]

Insite wrote:

> i like the M030 bars; they're made by porsche and are fairly cheap.

Just called Sunset Imports about those, but they couldn't even tell me what size those were, much less what size the stock ones are on a '98. So do you happen to know how much thicker the front M030 are compared to the stock, and are they adjustable?

-- peer

Here you go. The M030 isn't adjustable. John V is right on, you won't increase grip by just changing sway bars but you will increase responsiveness and reduce body roll. Keep in mind when comparing sway bars or any kind of torsion bar, that diameter, thickness and material determine stiffness. You can't tell stiffness just by diameter alone.

http://www.cb-racing.com/boxster_030.html

Yes, right on. The M030 bars are probably a good upgrade for a street car.

The aftermarket bars available for the Boxster are way too stiff to work well with a stock suspension, not to mention the risk of bending the front tub that comes with running a super stiff bar.

[Peer]

John V wrote:

> The M030 bars are probably a good upgrade for a street car.

If I'd like to increase some over-steer, would I go for a front M030 or a rear?

-- peer

[John V]

John V wrote:

> The M030 bars are probably a good upgrade for a street car.

If I'd like to increase some over-steer, would I go for a front M030 or a rear?

-- peer

It depends. Where do you want to increase oversteer? Corner entry? Mid-corner? Corner exit?

It's not quite as simple as you're trying to make it.

A larger rear bar will decrease understeer on corner exit, while doing almost nothing on corner entry. Since Boxsters which are properly aligned are already pretty loose on corner-entry, a larger rear bar could balance the car well.