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My new suspention geometry - comments?

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Old Nov 27, 2005 | 05:34 PM
  #1  
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Default My new suspention geometry - comments?

So, car's back on road and I got it setup. It's 170mm/180 front/rear ride height.

Now geometry was setup with winter in mind, so 195/55R15 winter tires!!


It goes as follows:

Front(L/R):
camber -2°21'/-1°50'
caster 3°37'/3°09'
toe 0°04'/0°03'
wheelbase - 2548mm/2547mm


Rear (L/R):
camber -2°10'/-2°27'
toe -0°09'/0°13'





It's set up a little bit on front to give it some stability under braking and make it a little less nervous in slippery conditions. Front camber was set-up with much narower tire and little grip in mind, that's why so little of it.

The thing I am most concerned about is wheel base difference of 1mm and rear toe which is little out of tolerance. What do you think? Schould I be concerned about it? It drives very well (for a winter wheel of course) but pulls just a little bit to the right :-( Not that you can't let the wheel go for a while but you have to keep correcting it once in a while to the left.

The best solution would be adjustable beam but it will be hard and costly to ship that to Poland so I still wonder when I can get it. Schould I be trying to get it ASAP?
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Old Nov 27, 2005 | 08:08 PM
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Ignore the wheelbase - production tolerance was more than that I'd guess.

Is it pulling to the right due to the camber in the road - is that why you have slightly less on the front right ?

Ignore the book now you have the basic setting and use the ass dyno instead
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Old Nov 27, 2005 | 08:13 PM
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Could u get a beam in a mk4 escort? As i could drive it over for u when we goto the ring
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Old Nov 27, 2005 | 08:15 PM
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Originally Posted by NUTS RuS
Ignore the wheelbase - production tolerance was more than that I'd guess.
Oh, OK. Probably true.

Is it pulling to the right due to the camber in the road - is that why you have slightly less on the front right ?
I think it's pulling to the right due to suspention geometry - maybe the rear toe?

It's not big thing but little anoying. Of course it may be that all roads around me are bent to the right but I don't belive they are so much. Other cars don't do that but none is on so hard suspention- I belive that influences it much.
Maybe it's due to the fact it's not cornerweighted?

Ignore the book now you have the basic setting and use the ass dyno instead
:-D Ass dyno in corners tells me that there is no grip overall "wrrr,pssst,wwrr,psst,wrr,wrr,psssst,wrr,psstt " and sideways in every corner if I try to aply some throttle But my winter wheels are a bit funny looking when driving on tarmac.
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Old Nov 27, 2005 | 08:17 PM
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Originally Posted by Rick
Could u get a beam in a mk4 escort? As i could drive it over for u when we goto the ring
Dunno.. and I don't know if I could fit it into the car on the way back :-/

It's pretty cumbersome. There is still some time - we can think about it.
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Old Dec 19, 2005 | 11:15 AM
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Now....

Done about 1500 km's, still pulling to the side but apart from that handling well I think. Still on snow I have to opposite lock to the left when accelerating hard, may this be due to the rear toe in-out slightly out of tolerances? Or should I just have it reset once more because new suspention could kind "settle"?
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