GermanCarSpecialists

I would lower the front a bit utsthe flamesuiton:

FlyinTomato

@vegas993

There are helper springs on the rear. I was looking thru all the pictures. I can confirm there are threads left on the front shocks. I worry there are much left on the rear shocks.

If that's the case, i will slam the front even more :P

Vegas993

Yeah, I see them now but they still look like they were cut to me, looks like only one coil on them?

Vandit

The whole helper spring angle is really a moot point. The helper spring is there to keep the main spring seated when the suspension is at full droop AND you're not running much/any spring preload

If FlyinTomato is trying to raise the car, then he'll probably end up with a decent amount of spring preload, so in that case the helper spring is going to be fully compressed pretty much all the time.


FlyinTomato: Like I asked earlier, when you jack up the car, how far does the suspension extend before the tires leave the ground? This is when jacking from the the front or rear, not so much from the side since swaybars factor in and load up the unloaded tire because the opposite side is loaded up.

Vegas993

So if that's the case, then it must be that the springs are too short for the shocks because it seems to me like you would be constantly bottomed out on Bilsteins at that ride height.

sml

I think you should let him adjust the collars before asking more questions / offering advice.

ThomasC2

I have the same factory RSR suspension on my car. The dampers are designed to go low. But it is easy to adjust the ride height if you want to. I you want it higher and your´re out of threeads just get a new set of springs that are longer but with the same stifness (or softer/harder if you like). The whole point with this set up is that you can change the height and springs to fine tune the set up you want. The dampers can handle a range of spring rate but if you want to run much harder or softer springs you should re-valve the dampers to make them match the springs you want to use.

I'm running 160 Nm front and 200 Nm rear and I was told from an old Bilstein employee that used to work with the RSR suspension that this is the rain-setup. With dry weather and slicks they we're running more like 190-200 front and 230-240 in the rear.

FlyinTomato

Guy, I wish I can provide more info at the moment. I had the suspension installed last weekend but that's about all i can do with the time I had. ON A Saturday. Not much time left for me to do fine tuning, or adjusting. All will have to be done the saturday coming up. Will take a lot of pictures.

The springs are 8in tall both front and rear. 300lb and 400lb respectively. I can compress the helper springs using my fingers. As Vandit said, they are there to keep the springs from moving around when the suspension is up in the air.

@Vandit, I do not know how much droop there is. I will find this out.

@thomasC2, Glad you have the same setup. The damping and rebound of these shocks are awesome. did you have problem with the rear strut lower mounting hole being too close to the trailing Arm mounting hole? Mines was way too close, that the shock body touches the trailing arm. I ended up running a big spacer between the shock and trailing arm mounting hole. The lower mounting point is also monoball setup.

ThomasC2

Yes, at the lower rear point I had to use 3-4 washers to get the clearence. But I agree about the damping. If you just have some speed they work great even for longer travels. I've been driving my car to all the trackdays and once a year down to trackdays in Germany and Belgium. And on track you can really push them, and the behaviour is flawless and predictable.

Thomas

FlyinTomato

I got the measurement back.

LF 95.5mm RF 99.5mm
LR 199mm RR 200mm

this is a lot lower than the RS F125mm, R258mm.

There isnt any visible threads above the collars on the rear shock. To raise the rear, I will need to buy longer springs as Thomas has suggested.

The spings are 8in now. looking to buy these for the rear http://www.summitracing.com/parts/eib-09002250400

Is there other options I have on getting my desire ride height?

I used the following measurement points and method.

FlyinTomato

There isn't much droop when the car is jacked up. that's from eye balling. What's the best way to measure this? Measuring the fender lip to tire?

Vandit

There is no need to measure, just eye ball. When jacking up the car, does the suspension extend to a ride height you're comfortable with before the tires leave the ground?

FlyinTomato

I will have to check again on that one. I kept forgetting that.



Say I have to get longer springs. They are again now at 8". ride height is 200mm, 58mm less than desired.

Would 9" springs be good enough? Or i can use longer and stiff tender springs?

Vandit

58mm = 2.28 inches, therefore, adding 1" to the spring length will not get you there.

I'd ignore the helper spring, it's gonna be collapsed any time there is weight on the suspension.

blomman

RS original is 223mm +-5mm