Toe in

Author
Discussion

dptdpt

Original Poster:

100 posts

170 months

Monday 30th August 2010
quotequote all
Can anyone let me know what the standard toe in should be for 1100 Clubsport?
The owners guide says 1/32"/side but i need the value in degrees

SportsLibre

590 posts

218 months

Monday 30th August 2010
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I am sure Pythagoras could give you the answer. If only he posted on here wink

splitpin

2,740 posts

204 months

Monday 30th August 2010
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I calculate it to be about .25 degree, but I was never much good at all at maths.

Perhaps Mr T can input ......... he knows about such things, including on Clubsports ..... and somewhere I vaguely recollect that the OM camber / toe figures likely related to Avon crossplies rather than the radials that most roundy roundy people use nowadays? - as they 'move round/sidewall flex on the rim way more than crossplies, the radials need much more neg camber than the crossplies ........ no idea what this means in terms of the toe but I suspect it's dramatically increase the camber for radials then reset the toe to match the original crossply settings?

Martin B

244 posts

201 months

Monday 30th August 2010
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I normally use around 1/8 inch total toe out on the front of my clubsport (with Dunlop radials).

Edited by Martin B on Monday 30th August 20:21

BertBert

19,539 posts

217 months

Monday 30th August 2010
quotequote all
splitpin said:
I calculate it to be about .25 degree, but I was never much good at all at maths.
yep, me too working on a 6.5" radius wheel (.27 degree on my calculator). I'd reckon to be going with a smidge toe-out though too.

Bert

splitpin

2,740 posts

204 months

Monday 30th August 2010
quotequote all
While I think of it ........... as 'toe' is the front or rear pair of wheels 'pointing/splaying in towards one another' or 'pointing/splaying out away from one another' relative to the forward direction (not meaning going backwards at a forward rate of knots through Coram etc! hehe), if 'toe in' presumably we're talking rears, because as noted above, fronts are inevitably 'toe out' - not that the OMs always make that clear, although the latest RS one does ......... unless of course, a Clubbie does things completely differently eek

dptdpt

Original Poster:

100 posts

170 months

Tuesday 31st August 2010
quotequote all
The OM does say 1/32/wheel toe in, but do I take it that this should be toe out? Or that those who know what they are doing run with toe out?
Is the triangle formed from the centr of the wheel to the leading edge of the rim?
My car came with radials fitted but set up for xplys, so I negative cambered as far as I could (about 3') then adjusted the toe in, but the heat pattern suggests I have too much negative and inner edge wear suggests I have too much toe in.
Thanks for all the replies

splitpin

2,740 posts

204 months

Tuesday 31st August 2010
quotequote all
dptdpt said:
The OM does say 1/32/wheel toe in
Just to be clear (apologies if I've missed it!), as I would expect, that's for the rears? Likewise, I would expect to see toe out (probably more) on the fronts.

dptdpt

Original Poster:

100 posts

170 months

Tuesday 31st August 2010
quotequote all
Sorry, it was me that was unclear. The OM says 1/32"/wheel toe in for both front and back.

splitpin

2,740 posts

204 months

Tuesday 31st August 2010
quotequote all
dptdpt said:
Sorry, it was me that was unclear. The OM says 1/32"/wheel toe in for both front and back.
No problem.

We could do with a Clubbie Wizard and/or Official Radical stepping in here pronto!

I'd be surprised if they actually meant to say that in the OM: I don't think I've ever seen a Radical with front toe-in - pretty sure that every Radical I've ever seen has significant front toe-out (and quite a lot of negative camber) when running on radials; as I would expect, as front toe-out in a rear wheel drive car helps the transistion into turns (at the expense of straightline stability which is not so much of an issue in a race car). Compensating rear toe-in is an integral component of that smooth and ready turn in as an entity. Kind of proof of all this for me is for example our RS which is 2mm toe out each side front and 2mm toe in each side rear as the standard factory alignment settings. Your apparently excessive inner tyre wear also surprises me: if you mean the front and you're running with toe-in at the front (when I think you should have toe-out if anything) I'd expect the outer to be getting hammered by severe scrubbing through the turns. Strange.

(Sorry, there was an error in there - got one of my toes pointing the wrong way laugh - just corrected)

Edited by splitpin on Tuesday 31st August 23:12

SportsLibre

590 posts

218 months

Tuesday 31st August 2010
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A smidgen toe in front and rear on mine (running Crossply tyres)

Josh Smith

437 posts

242 months

Tuesday 31st August 2010
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2mm total toe out front and 2mm total toe in rear using Yokohama Crossplys on our Clubby

Josh

BertBert

19,539 posts

217 months

Tuesday 31st August 2010
quotequote all
splitpin said:
dptdpt said:
Sorry, it was me that was unclear. The OM says 1/32"/wheel toe in for both front and back.
No problem.

We could do with a Clubbie Wizard and/or Official Radical stepping in here pronto!

I'd be surprised if they actually meant to say that in the OM: I don't think I've ever seen a Radical with front toe-in - pretty sure that every Radical I've ever seen has significant front toe-out (and quite a lot of negative camber) when running on radials; as I would expect, as front toe-out in a rear wheel drive car helps the transistion into turns (at the expense of straightline stability which is not so much of an issue in a race car). Compensating rear toe-in is an integral component of that smooth and ready turn in as an entity. Kind of proof of all this for me is for example our RS which is 2mm toe out each side front and 2mm toe in each side rear as the standard factory alignment settings. Your apparently excessive inner tyre wear also surprises me: if you mean the front and you're running with toe-in at the front (when I think you should have toe-out if anything) I'd expect the outer to be getting hammered by severe scrubbing through the turns. Strange.

(Sorry, there was an error in there - got one of my toes pointing the wrong way laugh - just corrected)

Edited by splitpin on Tuesday 31st August 23:12
I agree that the 2005 clubsport manual says toe-in. That's the same front and back (and the same for radial or cross-ply). That's the wheels pointing in towards each other rather than pointing away from each other. I reckon though that everyone actually runs a smidge toe out at the front to help turn in. No idea what people do at the back though. I'd expect parallel.

Bert