Re: Tracking

"Richard S Beckett" wrote ...

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> x-no-archive: yes > > Guys, > > Well, after having bought my Kart, I must admit to having spent no time at > all playing racing sims. Terrible I know, but I believe that all the years > that I put in were responsible for me being quick enough to pass my ARKS > test in my first session. > > So, this weekend I have my first race, and I'm really excited. I'll post a > report if anyone's interested enough. > > Now...It's a long time since I last did trig, so would someone check out

my > maffs on this, please? > > I need to set the font wheel tracking on said kart, but being ratherskint, > and not tooo stupid, I made myself two 300mm long straight edges, which > attach centrally to the front wheels, rather than spend �250 on a laser > tracking device. > > So, to measure the tracking, I place the 300mm straight edges on theinside > edge of each wheel, centrally located, and measure between them, behind,and

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> in front of the wheels. > > Obviously, if the measurements are the same, I have parallel tracking. > However if I want to set some toe out (for the wet), then here's how I > calculated the angle: > > Measure front and rear. Rear will be shorter for toe out, so toe out

length > = front - rear = X mm. > > So, Toe out angle = Asin (X/300) > > Am I right? >Sin(toe out)=opp/hyp for right angle triangle. You have two identical right angle triangles back to back so your formula should be; Toe out angle = Asin ((X/2)/300) = Asin (X/600) Tony

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>> Am I right? >> >Sin(toe out)=opp/hyp for right angle triangle. You have two identical right >angle triangles back to back so your formula should be; >Toe out angle = Asin ((X/2)/300) = Asin (X/600) > >Tony >

Yep, all makes sense to me. By the way, keep us posted on your karting exploits, all sounds good. Thinking about doing the same myself, sounds like blast :) Rafe Mc