17 Feb 05 13:44
Thanks Guys for the response and apologies for for not including more information on the car, which if I may, do so now.
It is a project (Prototype) which we have been busy on for four and a half years (full time)& yes it is a replica of an AC Cobra. We decided from the onset to create a car, unmistakebly 'Cobra' in appearance, but designed from the ground, up, not utilising donor parts. That being said, the car is now running and we are very pleased with every aspect of such, but for this returnability problem.
Spec's as follows:
Camber: 1.5 degrees negative
Castor: 3.5 degrees
Mechanical Trail: Zero
Ride Height: 125mm
Roll Centre: Front 21 mm, Rear 22mm
Suspension Travel: 50mm up and 50mm down
Tires: Front 245 x 40 x 17, Rear 335 x 35 x 17
The lower rod end bearing supporting the Kingpin is inside of the rim whilst the upper is close to the inside of the tyre, hence our 6 deg. angle on the KPI & zero Scrub Radius.
That being said, what would be better, induce Scrub, if so how much, or increase Castor?. Bearing in mind that we are looking, essentially for a 'Road' car, which would be
reasonably competetive on a race track. A difficult one I know, but as the saying goes, "Low aim, not failure, is a crime"