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Camber on rear wheels
Posted: 09 Nov 2009 09:03 pm
by rwd-pog
I'v just starting building a cheap and cheerful drift car, and i am used to using cars with adjustable suspension to allow camber adjustments.
Just curious if anyone has altered (bent) the rear beam to introduce a small amount of negative camber.
Any information or feedback welcome. Cheers guys.
Re: Camber on rear wheels
Posted: 09 Nov 2009 11:00 pm
by 340GLT
They have negative as standard. Just wondering why you want more?
Adam
Re: Camber on rear wheels
Posted: 11 Nov 2009 10:34 pm
by rwd-pog
I didn't realise they had camber as standard i was thinking that around 2 to 2.5 degrees camber could improve the cars drifting ability and would be fairly easy to do. But now i see in the haynes manual the car has -2 degrees from the factory,
thanks for the reply.
Re: Camber on rear wheels
Posted: 12 Nov 2009 08:35 pm
by Ride_on
It starts at -2 and then gets bigger, aswell as developing uneven toe-in which is very undesirable. Don't think anyone has made a solution as yet, but I do intend to straighten an axle back to factory specs, some info in
http://www.volvo300mania.com/forum-uk/v ... 6&start=15.
Unlike many of the younger lads on here I have had the pleasure of driving brand new GLTs (borrowed from the dealers while parents car was in for service/crash repair..oops), it was pretty impressive. It is a testament to the 360s that they handle so well with such bent rear axles.
Although I have to say my first 345 took the full brunt of my younger driving and the axle became so bent it was dangerous in the wet, when you hit a puddle straight-on at say 50 on a good dual carriageway, the car nearly spun. I'm not sure if the later cars axles are stronger or if I just calmed down.
Re: Camber on rear wheels
Posted: 12 Nov 2009 11:48 pm
by Ride_on
Actually just measured mine, seems to be -1deg both sides.
Does anyone know how toe-in is measured in mm? (+/-3mm according to Haynes)
Re: Camber on rear wheels
Posted: 13 Nov 2009 08:18 pm
by rwd-pog
If they bend that much over time i might consider trying to get the setting back to standard and then add some strenghthening bars to stop it deflecting under the strain of drifting. Thanks for all the help i really apprieciate it.
Re: Camber on rear wheels
Posted: 13 Nov 2009 09:30 pm
by volvodspec
it doesn't suffer from drifting itself, tyreskidding on the rear = less force from the tarmac = easyer sideway load on the wheel
hitting something like a curbstone in a drift is the real killer, if you overdo that you can even get positive camber on a rear wheel
the beam itself is quite easy to reinforce actually
Re: Camber on rear wheels
Posted: 14 May 2010 12:54 pm
by ty360volvo
hey guys just read this and wondered how to measure the camber on my 360?
Re: Camber on rear wheels
Posted: 14 May 2010 01:42 pm
by mat_91
old thread lol
and to answer you Q get the car on a four wheel tracking device
should tell you everything well at least the one at college does and you can print it out
Re: Camber on rear wheels
Posted: 14 May 2010 11:50 pm
by ty360volvo
thanks, I don't suppose there is a ruff home style test?
Re: Camber on rear wheels
Posted: 15 May 2010 12:27 am
by Ride_on
There is a cheapish solution, I used a camber gauge, £30 from frosts
http://www.frost.co.uk/item_Detail.asp? ... er%20Gauge
I guess you could make something up with a suitable spirit level and angle gauge.
Re: Camber on rear wheels
Posted: 17 May 2010 03:27 am
by ty360volvo
well ill give it a shot with my squer level, and see how it goes but ill get it done proply when i take the car in to get new tyres,
ill let you know how it goes
Re: Camber on rear wheels
Posted: 23 Jun 2010 04:28 pm
by crazycat
Is there a way to reduce the negative camber on rear wheels?
The camber gets bigger when the springs rebound, right?
Re: Camber on rear wheels
Posted: 23 Jun 2010 04:54 pm
by mat_91
the camber shouldnt move about if the axles were strong enough
with it being one long bar basically
Re: Camber on rear wheels
Posted: 25 Jun 2010 07:03 pm
by Ride_on
Yes the camber is fixed by the axle. I've been looking at mine with a view to fixing toe-in recently. I notice the axle is oval (longer vertically) more so in the middle. I guess this is a as a result of the stamp/forming to press out the curve for the diff clearance. This means the axle is weaker in the toe-in resisting axis, and particularly in the middle. Once I have this straightened I intend to cut a horizontal slot right through the axle (hopefully big angle grinder will do the job), in the middle 1/3 or so, and put a 2mm plate slightly wider than axle then seam weld. The edges of the slot will probably need bevelled (or V shaped) and progressively welded to fill the gap. Think I need more than my 100A mig though.
This should make the axle stronger mostly in the toe-in direction without increasing the size much, it can also be trimmed down if diff clearance is close. It should also add strength in the camber direction aswell.