Spring rates audi s2 coupe

[Mcstiff]

I'm 325F 425R with about stock weight and no rear sway stock 7a front sway. The ratio is a bit off (slight porpoising) but unless you make it the rear is not very twitchy.

[Rusty]

I wish. HnRs at the mo, was stock before ~200lb. It only slides out if you really make it, either lift off on full cornering load or over-ambitious corner entry speed off the power or trail braking.

Best to make sure that any setup has spot on alignment and that all dampers and joints are free. Mine had one damper stiffer than the rest, explains some of the handling characteristics but all very progressive and controllable.

[Rusty]

I wish. HnRs at the mo, was stock before ~200lb. It only slides out if you really make it, either lift off on full cornering load or over-ambitious corner entry speed off the power or trail braking.

Best to make sure that any setup has spot on alignment and that all dampers and joints are free. Mine had one damper stiffer than the rest, explains some of the handling characteristics but all very progressive and controllable.

[WabTheKing]

Interesting, that car I was in really did drive like a pig......... Back end was so twitchy, high speed gave no confidence at all, are you running 400lbs on the back then andy?

[Rusty]

Look in the suspension stick threads section, there is a thread full of options there

[quattrofrank]

I will have a look into it, the ARB rear is made by whiteline an they claim it should to miracles with regards to understeering, but I guess its just a sales trick. Do we have any other bolt on solutions, or do I need to weld on bigger clamps for the 25mm bar?

[Rusty]

I've got a 25mm RARB and it's in no way dangerous, suggest there was something else awry.

If you drive a stock S2 in a certain way you can get lift-off oversteer, it's a function of the rear geometry changing when the rear lifts, it goes toe out and makes it more pointy, conversely, it goes toe-in under power so is more stable.

If you're suffering understeer then try stiffer rear springs or RARB and get some sticky rubber, it really helps

[Rusty]

I've got a 25mm RARB and it's in no way dangerous, suggest there was something else awry.

If you drive a stock S2 in a certain way you can get lift-off oversteer, it's a function of the rear geometry changing when the rear lifts, it goes toe out and makes it more pointy, conversely, it goes toe-in under power so is more stable.

If you're suffering understeer then try stiffer rear springs or RARB and get some sticky rubber, it really helps

[WabTheKing]

what have you set your front and rear toe at?

[quattrofrank]

I`m currently running h&r coilovers kit, aluminium subframe bushings, uniball top mounts, powerflex bushings in the wishbone, stock roll bar in the front and whiteline on the stiffest in the rear. The car is stripped for all nois damping mats and all original wiring, but with a roll cage so I guess they neutralize eachother.

The car is still struggeling with understeer :O

[WabTheKing]

that was also with standard 7A ARB's front and rear, cant remember what my track was set at, guessin about 1mm toe in all round

[WabTheKing]

ideally you want the car to be neutral, ive been in a stripped out coupe with 400lbs springs on the back and on the front with a 7A front ARB mounted on the rear and an rs2 one on the front and it was dangerous, slight kink in the road and the back end was trying to overtake, incidently the car had a VERY bad roll some weeks later after id said it wasnt safe,

unless you have a massive wing on the back or more weight then 400lbs on the rear is too much IMO,

last time i ran my car i had 400lbs springs on the front, 7A coupe HnR springs on the rear, handled mint, put 20kg in the boot well and it was even better

[Rusty]

What do you mean by calculated? Did you sent them corner weights or somit?

If you've completely stripped the car then that might be the case but 10% is a big change over the stock setup on a stock or partilly stripped car.

Spring rates are a matter of driving style and preference. If I were going coilovers on a stock or partially stripped car then I'd start with the same all round at a minimum. I find the S2 is a blunt tool and needs some proper inputs to get it pointing in the right direction. I'd prefer to do that with springs that my current ARB upgrades but until I can afford it, it's staying as it is...

[terrybullwon]

I had my springs calculated by kw and the rears are softer

[Rusty]

why stiffer at the rear?

The stock setup is stiffer at the rear. Helps with the understeer too. HnRs are stiffer at the front and do understeer more IME.