curing body roll.

[astraboy]

Look at this.

Fun, it has to be said, theres a bit too much body roll
Anyone know what i can do to cure it?
Cheers in advance,
astraboy.

[Volvo 360 GL B200K]

Gas rear struts, they cured my body roll! I nearly new set up for grabs if anyone is interested.

Cheers

[redline]

Gas rear struts, they cured my body roll! I nearly new set up for grabs if anyone is interested.Cheers

HA HA never miss a chance do you lol

[jtbo]

*Fixed*

Look at this.

Fun, it has to be said, theres a bit too much body roll
Anyone know what i can do to cure it?
Cheers in advance,
astraboy.

There you go, this one is free

You do have roll of 3,8 degrees there, your passenger side suspension is already fully compressed most likely and driver side is bit higher than when car is standing still.
1 degree of roll is around 24mm in driver side so that would be bit over 90mm higher than passenger side.

Did you have 60mm lowering at front? That would leave around 20mm bump damping and rest of 160mm(front damper has this much of motion range) = 140mm rebound damping that makes body roll possible, also it is possible that roll center is higher now that you have lowered car.

So what can be done, one solution is to cut your dampers and make new thread, this however might lead car to loose grip bit more easily as outside tires tend to lighten even more than before.
Other solution is to lower roll center, or just get rear anti roll bar installed. I doubt that there is enough stiff springs to make body roll stop completely, but if there is those would make car bounce up and down.

[Ali]

I'd go for some uprated rear dampers if your still on stock ones? Didn't really find bodyroll much of an issue in mine, felt just about right. Other solution might be to get hold of a bucket seat as that should drop you lower in the car so you'll feel the bodyroll less, plus you don't have to worry about falling out of the standard seat! I'd say thats probably one of the things on my car thats made the most difference

[jtbo]

I'd go for some uprated rear dampers if your still on stock ones? Didn't really find bodyroll much of an issue in mine, felt just about right. Other solution might be to get hold of a bucket seat as that should drop you lower in the car so you'll feel the bodyroll less, plus you don't have to worry about falling out of the standard seat! I'd say thats probably one of the things on my car thats made the most difference

Bucket seat is really a must, I tend to drive grip style around the track and stock seat is as good as kitchen stool in terms of support, had to use my left foot to keep myself from rolling to passenger seat, lol.

CG is right where handbrake handle is, with driver it moves a bit higher and bit side, it is quite lot that what driver adds and getting this weight lower, for even 5cm is good thing, but best thing with bucket seat is that you can concentrate to driving and no need to concentrate holding yourself in seat.

For me bucket seat would give another plus too, with helmet I'm too tall to fit well into cabin, I need to set seat quite leaning backwards position and I cant put my strength to steering so well as steering wheel is quite far away, these cause some back trouble specially after I took chicane with great speed and worn dampers, had to call a day after that hit and next day I could barely get out of bed...

Well also bigger you are stronger is inertia and when you turn car your body will resists that turn (that's inertia) more you weight is more you need to work to stay on seat, also if you are tall your head and upper body will cause extra work to muscles and I say it is not like some 1 or 2kg more pulling to outer side of turn but much more, without training I was all out after 3-4 laps, also car's brakes started to fade, but so was my body.

Ok, health announcement ends here

Stiffer dampers to rear is good point to start as rear Koni's are available, it was some other car's dampers that will fit, here somewhere was information about that thing.

[Ali]

Yeah my mate found himself using his left foot to brace himself at the drift day all the time. Really not good as your having to concentrate on that aswell as everything else. I'm pretty small and i've found my bucket seat (which virtually has no padding on the base so sits almost flat with where the seat bolts down) is absolutely spot on for height. Others have cut out the mounting bits on the floor and bolted straight to the actual floor. I've adapted koni escort mk2 dampers to fit which is a cheap solution or you could get the proper spax for ~£130. There's still bodyroll there but once your strapped into a decent seat you don't have to worry about it so much!

edit:

Also for car handling stiffer front creates understeer and stiffer rear creates oversteer iirc so getting stiff dampers at the back might help with breaking the tail loose aswell as bodyroll

[dalahare]

Depends how much you want to spend... whiteline here in aus make a front swaybar, stiffer springs front and rear will always help, provided you get dampers to control them, and the dampers themselves too.

[petefarrell360]

Just out of interest Ali, if you're sitting so low in the car how easy is the handbrake to use, as I know you made use of it at the drift day at Brum? I know when I'm had to move some of my cars with the seats removed, it's not easy to release due to the angle, as your arm prefers to be over the handbrake rather than lever or even reaching up to it. Just interested........
Pete

[classicswede]

My question to you would be what springs and dampers do you have all round?
With my set up body roll is very minimal - could be imporved very slighly with a stiffer anti roll up front and fitting one to the rear.

[Ali]

Can't say I really noticed actually Pete, I know what you mean about not being high enough to pull directly up on it but didn't notice it being a problem. Really it needs a hydraulic verticle one instead but I don't know how/can't be bothered to plumb one in! I'm hopefully going back to Birmingham Wheels at some point this week (praying for rain to keep it fair between me and the S13 )

edit: Also I had the handbrake button gaffer taped in so I only needed to give it a good yank so wasn't as bad for hand position as if i'd needed to release it with the button

[Ronnie]

Stiffer dampers to rear is good point to start as rear Koni's are available, it was some other car's dampers that will fit, here somewhere was information about that thing.

The Konis are specified for the Alfa Romeo Giulia, but apparently will fit the 300 just fine.

Part No. 80-1781 for the red ones - these are designed with a bit more comfort in mind

Part No. 80-1781S For the more agressive yellow sport ones.

Cheapest I found was Europerformance.co.uk

At just over 130 quid including delivery.

[Fuse]

Stiffer dampers to rear is good point to start as rear Koni's are available, it was some other car's dampers that will fit, here somewhere was information about that thing.

The Konis are specified for the Alfa Romeo Giulia, but apparently will fit the 300 just fine.

Part No. 80-1781 for the red ones - these are designed with a bit more comfort in mind

Part No. 80-1781S For the more agressive yellow sport ones.

Cheapest I found was Europerformance.co.uk

At just over 130 quid including delivery.

There are also Konis made for 300-series, but those are not available anymore. (Well front ones are if you order something like 13 sets custom made from Wielhoven. )

NOS (new on stock) parts can be found, there are sometimes few sets for sale in Ebay.

I have both sets of red Konis, for front and for back, though I haven't installed the front ones yet. These are not Alfa romeo dampers, these are specified for 300-series but as I said above, Koni doesn't supply them anymore so they are kinda rare to find.

Rear:

http://koti.mbnet.fi/mtn/images/autot/GLT/2005/koni/

Front:

http://koti.mbnet.fi/mtn/images/autot/GLT/2006/koni/

But the Alfa Romeo rear ones seem to fit also, they are just a bit shorter than the original 300-series damper what I've heard.

[Ali]

Yeah I found some Alfa ones on ebay a while ago, went for something like £50 and I bloody missed them Its pretty easy to make others fit anyway.......



Just get some the right length with an M10 thread at the top which I think most do anyway and then make up a bracket to fit the bottom, dead easy! Mine have taken a fair bit of abuse no problems!

[biewz]

Depends how much you want to spend... whiteline here in aus make a front swaybar, stiffer springs front and rear will always help, provided you get dampers to control them, and the dampers themselves too.

do you have these guys contacts?
and are the anti-roll bars actually for the 360 or can just fit?