Spiky

iTrader: (1)

ok,

one thing i have never really done is have then Pug setup right, mainly becuase i wasnt 100% sure on the settings it should have


currently (monday it was done) i had the tracking setup from 3.5 degrees toe IN to 2 degrees tow OUT

will find out next week how that it is, but it was a bit understeer city, so i think it will be much better

but what i want to know is what settigns should i be ruuning?

Toe ?
camber ?
castor ?

anyone know? or have a roughly right figure?

xr-stu

im sure someone will come along and correct me but fuck it, iirc, toe has a bearing on stability at speed and the turn in response, so is down to person preference more than anything. camber should be at around 1.5-2.0 degrees as a standard ballpark. and i know little about castor but i was under the impression the more the better.

Spiky

iTrader: (1)

yeah 2 degree neg camber was something i had flying around in my head

i dont know what castor brings to the game?

i will try my new camber setting and see how i get on

but thanks for the info

Porkie

iTrader: (1)

Jesus Spikey! I thought by how fast your little car went that all this stuff had been optimised already!!!

by the amount of fast track and race 205's out there someone must know THE exact best settings for each kinda different track and style of driving and tyre etc etc...

dig a bit harder or ask else where mate

alistairolsen

caster brings steering feel and weight, and gives you more camber as you turn the wheel more. Think go karts.

On a strict track car running radial tyres Id go for:

1mm toe out
1.5 deg neg camber
4-6 degrees of castor depending on what you can achieve by modifying bits to pull the top of the strut back, or the bottom balljoint forwards

on the rear you might want to shim the axle where the stub axles bolt on to try and get 0.5mm toe in per side, 2 degrees neg camber

Chip

iTrader: (3)

I agree totally with Ali Olsen, thats exactly the same numbers that I would have said based on my experience with other FWD cars, possibly even a little more castor though, as much as 8 even would be a good thing.
I often run parellel though on the toe, even though slight toe out is probably better, I just prefer the slightly less "alive" feel to it when parellel, but you might find the opposite and want to go +2mm of course, its all about pesonal preference, no right or wrong answer, but Ali has certainly stated a good ballpark

Luca

iTrader: (2)

You need to give these guys a call mate...

http://www.balancemotorsport.co.uk/m...ry=Project+Car

alistairolsen

I wouldnt want to go as far as 8 on track tyres and a manual rack tbh.

You may also find you run into issues with driveshafts fouling and stuff, my knowledge is vauxhall specific, but novas you can only get about 6.

Chip

iTrader: (3)

Spikey only runs 195's so I dont think 8 would make it too heavy, you're right though that he will probably hit a mechanical limiting factor before he gets to that anyway so its quite likely to be acedemic!

Spiky

iTrader: (1)

cheers guys the 205 forum is full of my way is best based on what they think.

Porkie. My car has never been setup lol. Always use the eye pmsl.

Will do the track day next week and go from there then and use the advice above

Chip

iTrader: (3)

Spikey are you on 309 front wishbones?
Cause if so they add a bit of castor IIRC and not just camber

Spiky

iTrader: (1)

yeah 309. Cant see how they would alter castor. As they are only 7mm longer. Outwards

Chip

iTrader: (3)

Apparently they sit the wheel very slightly further forward as well as further out

alistairolsen

Spiky, do you run eccentric topmounts? If so, have a look and see how far back you can get the top of the strut to sit. Should be an hours work max, redo the tracking and then do the trackday, soon tell you if you like it or not.

Chip

iTrader: (3)

+1

I bet even his max setting is still not really as much as he wants!

alistairolsen

no, but its quick and easy and a good start, and the 205 isnt as easy as the nova for moving the bottom, so after this comes cutting the strut tops and more serious (winter) surgery.

Chip

iTrader: (3)

I agree thats its a good start mate, I was saying not to do it cause it wont be enough, quite the opposite in fact the reason it wont be enough still is the reason that it will definately be better than any other position he can run it in on his current hardware.

It's Czech Mate

I'd go for a toe of 0 degrees......as once on the move the deflection of the bushes will give it a bit of toe out, unless it's rose jointed already?

alistairolsen

Id guess its on polybushes, and tbh they wont deflect enough to cause that. Id be starting at between 1 and 2mm (from a known figure) and having a play back and forth from there.

Spiky

iTrader: (1)

ok few questions there..lol

i have eccentric top mounts

pretty much to most camber like below





i did have RJ's ADJ TCA's but they fouled a few areas and was, un safe, so removed them and fitted STD 309 wishbones, though i'm in the process if putting a RJ on the std wishbone and will polybush the inner mounts

i dont think there is much room to move the eccentric mounts back on the 205, as you can see from the pic

really appreciate the comments though

Chip

iTrader: (3)

Id move it back further spikey, even though you will lose a little camber

Spiky

iTrader: (1)

ok after next week,

i'm taking the front struts off to get them shortened, and will get the new ADJ wishbones put on and run maybe more castor on the top mounts and get more neg camber from then adj wishbones while lowering it a bit too

Chip

iTrader: (3)

Cool, if you can get enough camber on the wishbones alone then put it in the fully back position on the top mount, if not put it midway between the fully back and the fully cambered positions.

Careful of driveshafts if making the wishbone too long of course mate, although on a lowered car its not normally an issue

Spiky

iTrader: (1)

i have 405 drive shafts as spare for that very reason, they are 10-15mm longer than the 309 drive shafts i'm currently using

jammerrs

let us know how you get on useing the setting you use, be interesting to find out the results,

i thought castor only gave a slight improvement in straight line stability but dift cars use it becuase it makes the steering easier to get from one lock to the other

ow well learn something new everyday

Spiky

iTrader: (1)

i'll report back next week

Cawood

i need to find out something similar (sorry for the thread hi-jack spiky)

taking my RST for setting up next week, (fitted MEF's adj TCA's)

what am i best going for toe, camber and castor?

mines only a road car tho,

think martin give me some set up info ages ago regarding this, but i've only just managed to find somewhere that can set them up for me!

pee vee

give either, x sport a ring

or neil garner mate
he is not too far from combe.

http://www.neilgarner.co.uk/

Spiky

iTrader: (1)

ok will wait until my new suspension setup is done, then sort it iut

hopefully it will corner better too