cheekymonkey Posted July 5, 2007 Share Posted July 5, 2007 Reading up on the install of RLTC given that I'm going to be installing it sometime soon. One thing (so far!) is confusing me. The instructions at http://www.mkiv.com/techarticles/racelogic_Install/index.html say you can hook into the 4 wheel sensor wires in any order. Surely the RLTC at point has to know which wheel is which - and HOW does it know? If it gets that from the "calibration" (making one turn) I'll be quite impressed Link to comment Share on other sites More sharing options...
TrickTT Posted July 5, 2007 Share Posted July 5, 2007 When you make a tight U- turn, all 4 wheels turn at different speeds/travel different distances. Fastest>> outside front >>outside rear >>inside front>> inside rear>>slowest. RLTC picks up the wheel speeds from the abs sensors and works it out. Dead simple really. Link to comment Share on other sites More sharing options...
cheekymonkey Posted July 5, 2007 Author Share Posted July 5, 2007 When you make a tight U- turn, all 4 wheels turn at different speeds/travel different distances. Fastest>> outside front >>outside rear >>inside front>> inside rear>>slowest. RLTC picks up the wheel speeds from the abs sensors and works it out. Dead simple really. True, but according to the manual you can make it a left *or* a right turn. So still room for ambiguity surely? Link to comment Share on other sites More sharing options...
Pete Posted July 5, 2007 Share Posted July 5, 2007 Not really. Either way it'll know which way you're turning. Personally I just found the docs and noted which wires were which to avoid any possibility of getting it wrong. Link to comment Share on other sites More sharing options...
cheekymonkey Posted July 5, 2007 Author Share Posted July 5, 2007 That's mind-fappingly clever then. Have to think about it further Link to comment Share on other sites More sharing options...
RedM Posted July 5, 2007 Share Posted July 5, 2007 Can I just say that, when you come to the bit where RLTC needs to find out which wheel is which, do it manually and not with the dongle. An absolute PIFTA that'll have driving up and down car-parks for hours. Link to comment Share on other sites More sharing options...
cheekymonkey Posted July 5, 2007 Author Share Posted July 5, 2007 Sure, can probably do that. Is it easy to ID the signal wires coming off the ABS ecu to which wheels they go to? Link to comment Share on other sites More sharing options...
merckx Posted July 5, 2007 Share Posted July 5, 2007 Sure, can probably do that. Is it easy to ID the signal wires coming off the ABS ecu to which wheels they go to? You just need a multimeter to check the wires and to jack one corner up at a time to rotate. Think I had it on the resistance scale with the ignition off as far as I remember. Link to comment Share on other sites More sharing options...
SimonB Posted July 5, 2007 Share Posted July 5, 2007 You just need a multimeter to check the wires and to jack one corner up at a time to rotate. Think I had it on the resistance scale with the ignition off as far as I remember. Or just use the software - it shows the individual wheel speeds. Link to comment Share on other sites More sharing options...
Terminator Posted July 5, 2007 Share Posted July 5, 2007 If anyone really wants to check wheel allocations by jacking the car up and spinning the wheels by hand, I suggest you knock back the minimum wheel speed to a lower kph unless you are doing Iron man training. When configuring the wheels using the 180 corner it is important that you continue driving in a straight line after the turn until the the correct flashing rate of the indicator light is reached. It can take a number of attempts. I think Lui's car took us a large number of turns before it was configured, about an hour in total. Link to comment Share on other sites More sharing options...
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