Well thanks Bobby and Michael, yes it was a case of lift off oversteer which in normal cases when driving something like a 205 pug (of which I have many track miles experience of) means you just reapply throttle till understeer and then lighten said throttle, however the Quantum joggles about and does not settle in any direction making it a car that requires constant action to guide where you want it, and this time the oversteer took over savagely. Heavy acceleration would on no account make a FWD car oversteer unless something broke! I may sound big headed but actually had 2 lap records and a Hill record to my name so on no acccount would I heavy brake on a corner either. I would say it was almost a problem on the road too as my Mondeo handles and corners far better. Plus adding weight as suggested until the car is dulled down !! is not an option. I can live with the torque steer from the turbo power happily, its the basic feel that is the problem. Perhaps the only way is to play with spring rates and get a set of adjustable shocks. The Quantum is on 5 year old Yoki 309's at 23psi rear and 26 front. I think it would benefit from stiffer dampers as the car is fitted with near new standard ones. I was hoping someone else had been down this path and had solved it or is it just my car? Cheers Jon ----- Original Message ----- From: [email protected] To: [email protected] Sent: Tuesday, March 20, 2012 11:42 PM Subject: Re: [Quantum Owners] Fw: 2+2 handling problem
In a message dated 20/03/2012 22:58:17 GMT Standard Time, [email protected] writes: so I went the 1.4 front and 1100 rear set up which was a whole lot better however I am still unhappy with it as its joggly Maybe the first thing to bear in mind is that the suspension of the Fiesta was designed with a view to the car being used with 4 adults on board weighing around about 160 lbs with a further 120 lbs in the boot by way of luggage plus further weight on a roof rack. Then take into account that the body of the Fiesta might be 200 lbs heavier than the 2+2 If you carried a similar weight in the 2+2 the suspension would doubtless joggle less. 'Front wheel drive cars should understeer' a reasonable assumption and the standard version of the Fiesta probably would but, before you set about changing things it might be as well to check through any other changes you might have made to the car, as compared with the Fiesta on which it was based and also to recall whether there was anything unusual about the Goodwood incident. Did the car oversteer because of it's set up or was there any other input, heavy braking, or acceleration which might have provoked the oversteer. Having done this you may then have to decide for yourself, or factors like tyre pressure that might have altered the cars response whether you want a car which is ideal for track days but a pain for ordinary motoring or a car which handles well and rides well on ordinary roads but needs a bit more care and forethought when being driven on a track. What you decide to do,or change, is, of course, entirely up to you but remember that the development programme that lead to the base model being the way it was was the result of many thousands of hours testing and may well have involved comparison of hundreds of shock absorbers, to name but one component. Michael -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
