Camber Question

I only have a normal M3, but thought I'd ask this question on here as you guys a more track oriented that people on normal M3 forums.

I've done a search and it seems many of you have messed around with various settings.

What would you guys consider to be the best front camber setting as a good compromise between road and track?

I realise you could adjust it specifically for the track, but lets assume I don't want that hassle just yet.

I was thinking at least -2.0°, but would -2.5° be too much for road use?
(And for that matter, is -2.5° enough to give reasonable tyre wear on track?)

Thanks in advance, and sorry for starting another geometry thread.

[shimmy]

-2 would be as far as i would go for one setting for both if you plan to use the car for anymore than to and from trackdays

[glendog74]

As Shimmy says above ^^^ -2 degrees negative camber would be ideal.

I run -2.5 degrees but i don't do a lot of road miles between track outings.

Thanks for the replies.

Is the reason to stop at -2° purely because of the extra inner tyre wear you'd get doing lots of road miles with more camber?

[shimmy]

you get tramlining, if you do loads of roads miles it can be boring

and inner tyre wear ALTHOUGH if you are not changing camber you do get the chance to get your toe setting right as it is fixed like your camber whereas if you swap cambers you get altered toe

Shimmy,

Yeah, being able to have the toe set up and fixed was one of the reasons I would like a 'one size fits all' camber.

I think I read that when you increase the camber you get more toe out?
I normally run a little bit of toe out, so was worried that if I increased the camber for track I'd end up with too much toe out.

I must admit I'm tempted to try -2.5° first with my toe out set. That way if it was too much, when I adjusted the camber back to -2° the wheels would toe in slightly and still be at an acceptable value.

Does this sound reasonable, or am I completely wrong about how the toe changes with camber?

[glendog74]

I find with -2.5 degrees i get pretty even wear - the additional inner wear is offset by the track miles i do

(4 Ring trips and no more than half a dozen UK track days per year)

[daniel]

I have just started running -2.5" for road because I want that setting for trackdays without having to bother messing about. I can't comment on wear yet but no complaints about tramlining or anything like that.