stu21t

the way my arb is fitted on the 5 is it bolts to the bottom of each wishbone and at 2 points across the subframe, i cant remove this without a lot of work. (i have to jack the whole car up a long way and remove my false floor plate, thats riveted on. so not a small job)
i might redo it later over a weekend when i have more time to play, but for now this has to be better than it was.
i was doing it last night after work so didnt go too mad.


also i used to get a lot of wheel spin from the drivers rear wheel. having 150kg less than the passenger side might have been the reason for this.
now they have a more even spread of weight im hoping to get less spin.

stu21t

well ive been out in it tonight and....

the mad wheels spin from the driver side is near enogh gone.
it still spins, but nowhere near as much. so i must have done something right. lol

now i just got the rest of the problems to sort out.

Tarren

Fairplay mate looking forward to the pics LOL!!

Chip

iTrader: (3)

Certainly makes sense with it so much better weighted now it would spin less, although Im still gobsmacked how much difference you made just changing the spring heights slightly, unless your car now leans about 2" to one side

OldDan

What other ways would you adjust the weight distribution than moving the spring platforms around (other than moving weight inside the car!)

Spiky

iTrader: (1)

stiffer springs?

Chip

iTrader: (3)

Moving weight inside the car is exactly how I would expect to have to make the sort of massive change that stu has made, I wouldnt expect it to be possible on spring platform height alone without it being changes too big for the car to sit looking level anymore and hence it would mess up suspension angles.

Chip

iTrader: (3)

You mean put a totally different rate of spring on the left rear to the right rear?

Spiky

iTrader: (1)

i was just throwing that out there, to get views..lol

certainly not something i would consider

Chip

iTrader: (3)

Not a good idea, might work for a static weight but the moment you accelerated it would shift the balance of weight distribution as the 2 springs reacted differently.

OldDan

Probably looks like one of those daft american things on hydraulics!

Are you doing the geometry on tonights night shift then?

stu21t

It looks fine, but I'm not too fussed how it looks tbh.
From memory the passenger side was 25mm higher than the drivers side, now they are within 5mm of each other.
The passenger front has dropped 10mm ish and drivers side not too much.

I'm not doin it this weekend. Working tomorow and a christenin on sun.

Might take the arb off the front and re weigh it all, then measure up and redo the geometry and check rates next weekend.

The most important thing for me to do at the moment is sort out my gear change. I'm having loads of problems with that. And it's costin me loads of time to change gear meanin I watch people drive away from me due to slow changin.

RickyLee53

It was probably a fair bit out to start with.

Its fairly easy to change the suspension by 100kg's per wheel or something. For example if you have 10kg per mm springs. and you lower that wheel 1cm, you'd have 100kg's extra as that wheel would be under 1cm more preload. In reality though and I guess what your getting at is the other 3 wheels all change there weight and it becomes a real PITA.

I've actually done something very similar in the past, be carefull not to change the settings of each corner by more than a couple of CM as you'll make it worse. This also assumes the chassis is 100% stiff, jacking it up then letting it down its suprising how much twist you get sometimes.

Chip

iTrader: (3)

Ah, it was an entire inch out from to start with, that makes sense now!

OldDan

No point disconnecting the ARB unless you've got adjustable drop links or all you'll do is add a load of preload when you re connect it