So I’ve had the steering arms machined down and got lots of camber on the front.
Good News - the car turns in like a weasel on speed <LINK_TEXT text=“- YouTube … re=related”>Weasel Fight - YouTube</LINK_TEXT>
Bad News - the car snap oversteers with mid corner correction like a Subaru cat Subaru Rally Cat by Kasp Production - YouTube
So I’ve tried all the damper adjustments to try and cure it but nothing seems to work - I turn snap oversteer into massive shopping trolley understeer
So I’m booked into JSR on Monday for corrective surgery.
Now here’s the query - I filled the car up yesterday on the way back from CN’s and the extra fuel weight has transformed the handling. Still got great turn in but much more controllable oversteer (or I’m getting used to it)
So do I add more rear camber to try and balance the handling or keep the car full of fuel ???
Turn-in is largely effected by toe. The snappy oversteer does sound like an inbalance in the camber…possible too little grip at the rear from what you describe so either too much -ve camber at the front, or too little at the rear. All depends what your current settings are, and ofcourse you damper / arb setup
What geo settings are you ruuning?
[quote=N17VES]
What geo settings are you ruuning? [/quote]
Probably the M54/M6/M5 to Dudlaay!!
On second thoughts maybe “the rabbit run”
Ride Height - 115fr 119rear
ARB - full hard
Front camber - -1.5
Rear camber - not sure ?
Nitron 46mm dampers
I had a similar problem running too much toe at the rear. trackfocused sorted it out and am running 2.5 mm rear toe 0.5 mm front camber - 1.75 rear camber -2 and front castor +3.6 although I am 15mm higher on ride heights
worn rear tyres? wrong pressures? you might find now the balance has changed you nee to adjust your pressures?
Ade
Did that - tyres are 500 miles old so 1/2 worn 
The rears were higher pressure and temp than the front so I reduced them by 1PSI over the fronts as well. That’s maybe helped as well as the fuel
Too many fookin things going on to tell what’s made the difference. 
All sounds a bit like my Spa visit last year, handling was great the first day, suddenly crap on day 2, i could find nothing wrong, i just had no rear end confdence 
[quote=chrisexigegt]
Too many fookin things going on to tell what’s made the difference. [/quote]
Chris … one variable at at time is the ONLY way bud …
What tyre pressures are you running?
And is it power oversteer or just running out of grip on the rear first?
[quote=OrangeD]What tyre pressures are you running?
And is it power oversteer or just running out of grip on the rear first? [/quote]
Track - normally run 24 hot all round on A048 - 45deg
Road - normally run 25/26 when ‘road’ warm - 25deg
The oversteer is on sharp turn in and the rear snaps and bounces - my racesuit is in the wash 
[quote=chrisexigegt]
The oversteer is on sharp turn in and the rear snaps and bounces - my racesuit is in the wash [/quote]
so prior to you reapplying the throttle then? It just breaks away mid corner? or actually on turn in?
On turn in and if I make any steering correction on throttle
Front too hard rear too soft? What is the front roll bar set to?
ARB set to full hard.
Dampers are 10 off hard all round. Tried softning the rears and proper upset the handling. The Nitrons don’t seem to like different settings front to rear.
After a bit of research I think a touch more rear camber might redress the balance - if not Tuesday’s going to be a pampers day for me - do they do Nomex ones ??? 
Just worth checking this…
Has the wife found your car and added a couple of bags of sand in the boot hoping it might kill you, to save her the trouble? :whistle:
Bugger - I’ll check
No still safe for now. Had a couple of close calls recently, getting tougher week by week.
Thinking of buying her a new Merc and breaking the news at the same time
Chris,
I had the same ‘problem’ (excuse number 127!!!) at Donny last year. All sorted now with softening the rear dampers a bit more that the front and adding another .5 deg of rear camber. Sticks like sh.t to pampers now! 