Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: rad cap on 24 March 2008, 22:03:36

Title: tracking settings
Post by: rad cap on 24 March 2008, 22:03:36
fitted a new tre for mot, what is the setting for the tracking, in/out ?.
Title: Re: tracking settings
Post by: Marks DTM Calib on 24 March 2008, 22:08:02
Seem to recall its slightly in.....

.....where had it worn, on the very inner edge, if it has then its camber....not tracking.
Title: Re: tracking settings
Post by: rad cap on 24 March 2008, 22:12:02
no wear at all, i fitted a new track rod end for mot, put new one on as close as poss but want to check the track, my self and not sum muppet at fick kwick, or garage, i have acces to guages but no settings, thanks
Title: Re: tracking settings
Post by: Marks DTM Calib on 24 March 2008, 22:13:13
Got some good values at work, will post them tomorrow.
Title: Re: tracking settings
Post by: rad cap on 24 March 2008, 22:15:50
ok that would be great, :y
Title: Re: tracking settings
Post by: Marks DTM Calib on 24 March 2008, 22:16:28
Its worth checking the rear settings as well.
Title: Re: tracking settings
Post by: TheBoy on 24 March 2008, 22:17:18
BOL says 0o10
Title: Re: tracking settings
Post by: rad cap on 24 March 2008, 22:21:09
is that in or out.  will check front and rear if i get settings thanks
Title: Re: tracking settings
Post by: Marks DTM Calib on 24 March 2008, 22:24:20
Hmmm....not sure on those, my thinking is toe in because when moving forward the tyre friction will tend to move them towards toward the zero point and you still want a little toe to keep stability....suppose that could be toe out..
Title: Re: tracking settings
Post by: TheBoy on 24 March 2008, 22:26:36
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Hmmm....not sure on those, my thinking is toe in because when moving forward the tyre friction will tend to move them towards toward the zero point and you still want a little toe to keep stability....suppose that could be toe out..
I was always told that rwd toe in, fwd toe out (or was it other way round?)
Title: Re: tracking settings
Post by: Marks DTM Calib on 24 March 2008, 22:27:33
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Quote
Hmmm....not sure on those, my thinking is toe in because when moving forward the tyre friction will tend to move them towards toward the zero point and you still want a little toe to keep stability....suppose that could be toe out..
I was always told that rwd toe in, fwd toe out (or was it other way round?)

Which would be correct, but the Haynes toe value is bugger all!
Title: Re: tracking settings
Post by: rad cap on 24 March 2008, 22:28:01
i would suspect tow in myself, as its rear wheel drive, but setting would be good if you can get them.
Title: Re: tracking settings
Post by: TheBoy on 24 March 2008, 22:29:58
Quote
Quote
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Hmmm....not sure on those, my thinking is toe in because when moving forward the tyre friction will tend to move them towards toward the zero point and you still want a little toe to keep stability....suppose that could be toe out..
I was always told that rwd toe in, fwd toe out (or was it other way round?)

Which would be correct, but the Haynes toe value is bugger all!
esp giving the +-10 tolerance!
Title: Re: tracking settings
Post by: rad cap on 24 March 2008, 22:35:04
will put the gauges on it 1 ngt this week, if work lets up, let u no what i find, thanks for help. we have some gauges at work the boss has them for his rs200 , now thats fast.
Title: Re: tracking settings
Post by: TheBoy on 24 March 2008, 22:38:15
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will put the gauges on it 1 ngt this week, if work lets up, let u no what i find, thanks for help. we have some gauges at work the boss has them for his rs200 , now thats fast.
Theres a blast from the past - my brother did the redesign for that to make it road legal (the original Ford design wasn't road legal), and a heap of work on the 4 wheel drive system used.
Title: Re: tracking settings
Post by: rad cap on 24 March 2008, 22:45:02
its a full rebuild top to tow, ready for the track, had it on rolling road got some stupid bhp out of it, think 500 bhp but can check with him .

he paid a lot for it and had a new crank made for it . spent a lot of cash on it ,
Title: Re: tracking settings
Post by: Marks DTM Calib on 25 March 2008, 08:33:24
Rear toe approx +1.5 (as you would expect on a rear wheel drive)
Front toe approx +0.5 (surprised at this one!)
Title: Re: tracking settings
Post by: Kevin Wood on 25 March 2008, 10:59:49
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Rear toe approx +1.5 (as you would expect on a rear wheel drive)
Front toe approx +0.5 (surprised at this one!)

Positive toe is toe in, IIRC, so a little toe in is what I would expect. Half a degree is quite a bit for the fronts.

RWD cars tend to corner better with a little toe out at the front at the expense of straight line stability so you don't want toe out on a RWD road car generally (especially considering the Omega has been known to wander anyway). Toe in at the front generally gives greater straight line stability and worse turn-in.

Parallel to a little toe in (enough to ensure it doesn't go into toe out under braking!) is probably the best compromise and certainly what "feels" best to me on the road. YMMV.

If I had access to the kit I'd have a play and see what suits me best! Start with 10-20' of toe in and see how it drives.

Of course all the suspension angles interact, tyre choice comes into it and what suits one car won't suit another. :-/

Kevin




Title: Re: tracking settings
Post by: Marks DTM Calib on 25 March 2008, 12:02:18
Should have said that those values are static in mm's on a 17 inch wheel.

So front toe in deg is about 0 (+0deg 5')

Rear toe is about 0 to! (+0deg 12')

Title: Re: tracking settings
Post by: Kevin Wood on 25 March 2008, 12:12:09
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Should have said that those values are static in mm's on a 17 inch wheel.

So front toe in deg is about 0 (+0deg 5')

Rear toe is about 0 to! (+0deg 12')


Ahh, Ok. That makes more sense. Of course, 1.5 degrees of toe out on the rear could have been "interesting" too. :o

Kevin