myothercarsa2cv Posted November 12, 2012 Share Posted November 12, 2012 So I understand that the inside wheel follows a different arc to the outside wheel when negotiating a corner. What I don't understand is why then there are lots of differing opinions on whether toe in or toe out is desireable, as surely this will have an affect on what arc the wheels follow? For example, with toe in, the inside wheel will act to counteract the motion and for toe out the outside wheel will counteract it? Is the tracking whilst cornering adjustable independent of toe? Link to comment Share on other sites More sharing options...
Titanium7 Posted November 12, 2012 Share Posted November 12, 2012 Simple graphical simulation web site Have a look here Link to comment Share on other sites More sharing options...
6speedmanual Posted November 12, 2012 Share Posted November 12, 2012 Is the tracking whilst cornering adjustable independent of toe? Only by changing the design / angle of the steering arms. On a seven it is not realistically adjustable. On a race car it may be possible to have different steering arms and therefore Ackermann fo different circuits. So why is it said that front toe-in gives more understeer and and toe-out less understeer? Now that is an interesting question, much discussed on BC before..... Peter Link to comment Share on other sites More sharing options...
myothercarsa2cv Posted November 12, 2012 Author Share Posted November 12, 2012 Thanks both. Ti7, I've not seen that graphic before, it's quite good. I wonder if ackermann is more important than toe for most situations? I did a quick google for "adjustable ackermann" and it's pretty much all karts and remote control cars! So if I'm understanding it correctly, it could simply be adjusted with a couple of washers between the upright and the steering arm? No need for a new design? Link to comment Share on other sites More sharing options...
Tony Whitley Posted November 13, 2012 Share Posted November 13, 2012 Ah, Ackerman, not Akkerman. Nothing to do with then My bad. Link to comment Share on other sites More sharing options...
TomB Posted November 13, 2012 Share Posted November 13, 2012 Ok clever Blatchat, so what is a Coander Effect exhaust all about? Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 13, 2012 Member Share Posted November 13, 2012 Quoting Tony Whitley: Ah, Ackerman, not Akkerman. Ackermann Jonathan Edited by - Jonathan Kay on 13 Nov 2012 08:53:05 Link to comment Share on other sites More sharing options...
Nov-07 Posted November 13, 2012 Share Posted November 13, 2012 More pedantry - it's "Coanda" 😬 See http://www.av8n.com/how/htm/spins.html#sec-coanda and even Wikipedia "Coanda Effect" Are you thinking of a "blown exhaust" for the Seven 🤔 Edited by - November7 on 13 Nov 2012 09:19:21 Link to comment Share on other sites More sharing options...
Tony Whitley Posted November 13, 2012 Share Posted November 13, 2012 The exhaust on one of my old cars was like a colander, maybe that was what TomB was thinking of? It made it sound faster. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 13, 2012 Member Share Posted November 13, 2012 Coandă , but I'm just wondering if that breve on the last letter will survive BC rendering. I think there was a thread about how to explain lift on aerofoils, which included a discussion about how much the Coandă effect contributed. Jonathan Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 13, 2012 Member Share Posted November 13, 2012 Well, that's the answer: the breve doesn't survive BC at all. It's strange when that happens because it looked fine as I entered it. Jonathan Link to comment Share on other sites More sharing options...
myothercarsa2cv Posted November 13, 2012 Author Share Posted November 13, 2012 Thanks for the diversion On the subject of exhausts, there was a 4-1 style made in the states back in the 60's that perhaps added nothing but sounds incredible - 'equal length' headers* in to one collector can, but the amount that each header protruded in to the can was staggered a bit like: __________________ ______ ______ ____________ ____________ __________________ If that's clear... * If I remember correctly, the length from block to end of collector was the same and the pipes were staggered according to the firing order which meant extra 'bo-bo-bo-bo-bo-bobs' 😬 I'll have to find it. Link to comment Share on other sites More sharing options...
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