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Author Topic: Wheel Alignment settings  (Read 2663 times)
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Nigel
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« on: August 07, 2021, 08:44:19 PM »

Good day

I've got the Haynes and the Lancia figures which agree on the Rear at 2-5mm toe-in.
They conflict on the front however: Haynes says 1-2.5mm toe-out
                                                     Lancia says 1-2.5mm toe-in


However I read somewhere on here that there is new
thinking/ better settings recommended these days.

Pointers gratefully received!

Nigel
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1984 2.0 Carb HPE [ex Aus] Grigio Finanza.
2007 Mazda 6 2.3 [current daily, highly recommended]
The past:
1980 2.0 HPE White in South Africa [hope it survives!]
1976 1.6 Coupe Lancia Blu [PFG 76R] [probably deceased]
oh,and an Uno Turbo 1997 also in SA [stolen,never recovered]
betabuoy
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« Reply #1 on: August 07, 2021, 09:25:33 PM »

Hi Nigel
I think there’s a degree of personal preference when setting tracking. IIRC, I’m using about 3-degrees toe-out which works for me.
Chris
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peteracs
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Peter Stokes


« Reply #2 on: August 07, 2021, 10:56:53 PM »

Hi Nigel

There was also a comment on here I seem to remember, but not able to find it, from someone who uses toe in on his race car as it makes it handle better for him. So as Chris says, down to personal preference. I used Haynes figures to set mine up and did not realise the Lancia ones were different.

Peter
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rossocorsa
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« Reply #3 on: August 08, 2021, 01:54:19 PM »

These are the most recent information from Lancia on this, from the final technical data book issued in 1984 and two technical bulletins '83 and '86
https://www.amazon.co.uk/photos/share/pBeYcYCHhmYuuUezoXDGlTVixdd0XOCYWCS3IWzD7zh

Make of them what you will, as always when you dig things can get confusing
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rossocorsa
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« Reply #4 on: August 08, 2021, 02:10:46 PM »

Here's a different view from a very early technical data book. (1974)

In this I believe the figures are for a loaded car.

https://www.amazon.co.uk/photos/share/YBIm3hlhQzqAhwfViN6AMIWCft1PGGt2rqFi3MUYhj4
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capriblu
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« Reply #5 on: August 08, 2021, 04:40:59 PM »

As I read these Lancia data sheets then toe in recommended for rear between 2&5mm and for the front anywhere between 1mm toe in and 2.5mm toe out.  i.e. negative number refers to toe out .....
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WestonE
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« Reply #6 on: August 22, 2021, 12:10:00 PM »

I would go with the latest settings because they will get closer to modern tyre needs. I have custom settings I will try when the car is complete, but I have adjustments not present on standard cars.

Eric
PS be aware wheel spacing is staggered on these cars from the factory (different front to rear). So keep wheel spacer size consistent front and rear if changing wheels. 
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Nigel
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« Reply #7 on: August 22, 2021, 12:47:17 PM »

Hi Eric,

Are you suggesting to maintain the factory wheel track spacing front and rear?

Is that a design feature to improve dynamics?

Nigel
« Last Edit: August 22, 2021, 04:16:37 PM by Nigel » Logged

1984 2.0 Carb HPE [ex Aus] Grigio Finanza.
2007 Mazda 6 2.3 [current daily, highly recommended]
The past:
1980 2.0 HPE White in South Africa [hope it survives!]
1976 1.6 Coupe Lancia Blu [PFG 76R] [probably deceased]
oh,and an Uno Turbo 1997 also in SA [stolen,never recovered]
WestonE
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« Reply #8 on: August 22, 2021, 04:37:27 PM »

Hi Nigel

Yes I am and yes it is. More often found on more expensive cars. I came across this when working through my wheel and tyre check last year. At first I thought the data books had typos so I googled it.

Eric 
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squiglyzigly
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« Reply #9 on: August 22, 2021, 06:21:40 PM »

I used to run the front with toe-in on my Beta race car because it turned into a bend sharper especially when trailing the brakes. In mid corner it also drifted into understeer more progressively and when pushed deep into understeer it comes back quicker. I never got on with front toe-out. More understeer and slower to return grip.  Both my VX coupe on coilovers and my Berlina run toe-in.

Golden rule on the rear, ‘always run toe in’ or you will have the back coming round on you every time you lift off of the throttle in a turn or even braking slightly on a roundabout. Toe out on the rear is for the brave or the insane. Track use only!
Then move the tyre pressures a few psi and you can change it all up again.

Of course we all drive differently and prefer different responses, so experiment until you find what suits you.

Ian
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