yeah we`ve spent quite a bit of time over the years, doin R&D, testing & tuning sorting good "Packages" to suit the different applications, road soft,,, road/club use,,, & bitumen race applications,,, & dirt race applications
EG: the "Usual" hi-los that you buy,,, these are generally too big in diameter for the average road user , -->especially with old "Hard" donuts,,, Just think about it for a minute--> imagine old hard donuts, fitted with large diameter hi-los which have a wide radius edge on them,,, & you end up with a rather stiff ride (generally too stiff for the average road user) not too bad if youre using the car for bitument racing tho
however if you have "fair-to-middly" donuts that aren`t too squashed & aren`t too hard, then we can machine a set of hi-los to suit your wants/needs,,, a soft ride would be easy set with the use of small diam hi-los with fairly sharp radius,,, this creats a very similar ride to Hydro equiped minis, wonderful for soft road use , very comfy

& also (funny enough) very good for dirt race application,,, But creats a whole pile of body roll,,, lean over in corners if driven "spiritedly",,, not so good for bitumen race applications hey???

getting the picture???
Now i agree totally with you on this GT,,, when the donuts are "VERY" squashed then it`s bin time,,, but we can sort decent packages using fair cond 2nd hand donuts & then machine the hi-lo to suit your application,--> soft road & dirt race,,, med road & dirt race with occasional club race,,, stiff-ish road/club race use,,,, & then very stiff for bitumen race only use.
It`s not rocket science,,, but it`s best to sort them all as """packages"""
Sooo,,, we can do packages for ride quality right? & we can set the ride heights with those,,, so where does the different wheel alignment settings come into play???
Ok,,, so lets say we have a stoopid stiff set up but we do some bitumen club race stuff so that`s all cool,,, well we`d fit large diam hi-los with gentle radius, set the ride hieghts fairly low,,, make sure we are not "ON" the bump stops , unless we have hydro or comp bump stops,,, fit a set of adjustable shocks like spax or Koni etc so we can have a play with rebound settings,,, then we look at the tyre we`re using,,,
Hoosier tyres like being set up "straight up & down",,, that is--> no camber, but we need some on turn in to help stability as we enter & go through mid corner,,, so we add some caster to the package to help sort a bit of camber on the turns,,, also helps with the slight body roll (think about it) but the hoosiers don`t need "too" much camber (they`re designed specifically for minis) so our caster won`t need to be more than approx 4-5deg-ish (most std minis are lucky to have 2-deg of caster & often they`re all over the place,,, maybe the left wheel has 1&1/2deg, & the right might have 3-deg,,, well,,, they can be anywhere really & usually are generally all over the place) But we really want to even things up to keep the car neutral for both left & right hand corners, so we need to correct/adjust them yeah? hence the fittment of adjustable control arms
but for road use we can get away with a tiny bit more caster on the left front, than the right which then helps correct the cars self centering because it alows for the camber on our roads falling towards the gutter,,,
Ok,,, Yokohama AO32 tyres?,,, well they like a big chunk of camber & a big chunk of caster, so maybe we start at about 2&1/2 deg of camber & maybe 5 deg of caster,,, then go out on the track/road & have a play,,, feel out the car & what it`s doing,,, is it neutral? is it understeering? is it oversteering & if it is doing those things then is it doing it neutrally , as in--> is it doing the same thing turning left & right???
But those settings are just a starting point,,, & that last one for the yokos is mainly a race set-up,,, road use with those tyres & you can back off the camber quite a bit.
so then we can have a "Play" with settings,,, add some more toe-in at the back if it`s a little tailly (over steering) ,,, maybe just soften the back instead,,, maybe add more rear camber....maybe just stiffen the front etc etc etc it`s all dependant on a whole pile of things & it`s a combination of those that we try to play with to creat a complete package to suit whatever the application... there are some quite solid "Known Quantities" tho,,, so we usually have our own "Starting points" already sorted.. & it`s all about testing the car after said "starting-point" has been set... in other words --> drive it & see what it`s doing,,, the old "Suck it & see" & "Horses for course" sayings come into play yet again
there`s ample amounts of adjustments avaliabe with the right gear fitted & we can do all sorts of things to suit all the different applications,,, & it all comes down to --> what you`re using the car for,,, what tyres you have fitted,,, how stiff the body shell is,,, & how aggressive/relaxed your driving style is (amongst other governing factors)
Just think "Packages" & you`ll be on the right path
Either way,,, it`s """Mainly" the Toe setting that keep tyres from wearing out,,, ((or makes them wear out)).... too many people will say that it`s the camber that wears tyres out,,, well that`s not quite true,,, it`s more to do with the Toe setting,,, too much toe-Out & you`ll wear the insides of the tyres rapidly,,, too much Toe-In & you`ll wear the outsides of the tyres rapidly
class diss-missed for the day
do your homework as there will be an exam on all this come monday
