mark newman Posted October 20, 2012 Share Posted October 20, 2012 Can any one work this out for me . I need to know what speed a car is going at this point 1.5 sec 60 ft as I need to work out when I have the Nos switched on . any help would be good. Quote Link to comment Share on other sites More sharing options...
mattdavies Posted October 20, 2012 Share Posted October 20, 2012 http://www.wallaceracing.com/60-footmph.php 45mph Quote Link to comment Share on other sites More sharing options...
SupraD06 Posted October 20, 2012 Share Posted October 20, 2012 (edited) 27.1 mph http://www.machinehead-software.co.uk/bike/speed_distance_time_calc.html Might be wrong, but worked it out using 18 meters, which is 60ft Edited October 20, 2012 by SupraD06 (see edit history) Quote Link to comment Share on other sites More sharing options...
Tyson Posted October 20, 2012 Share Posted October 20, 2012 27.3 mph Quote Link to comment Share on other sites More sharing options...
Havard Posted October 20, 2012 Share Posted October 20, 2012 I looked at this and wondered. How can you calculate something as a rule of thumb with so many variables. Launch time, car output and mods, drag tyres etc. I guessed at around 20 Mph if you had a 5 sec 0 - 60 car. That calculator posted above says around 15 Mph. Quote Link to comment Share on other sites More sharing options...
mark newman Posted October 20, 2012 Author Share Posted October 20, 2012 thanks for that Quote Link to comment Share on other sites More sharing options...
sideexitsupra Posted October 20, 2012 Share Posted October 20, 2012 Can't you get Ryan to program the Syvecs so it will only allow it after a certain speed? Wheelspin not a factor as could be read from the front abs hubs? I guess a relay only activated after a certain speed would do it. I'm sure you could get an output from the Syvecs after a certain speed. Quote Link to comment Share on other sites More sharing options...
mark newman Posted October 20, 2012 Author Share Posted October 20, 2012 Can't you get Ryan to program the Syvecs so it will only allow it after a certain speed? Wheelspin not a factor as could be read from the front abs hubs? I guess a relay only activated after a certain speed would do it. I'm sure you could get an output from the Syvecs after a certain speed. yes Ryan has programed it to come in at 60 mph , but I think that is a little bit to late as I change gear at the end of 60 ft and that is when I need it to come in so thinking about it I will get him to change it to 50 mph now and see what happens. Quote Link to comment Share on other sites More sharing options...
sideexitsupra Posted October 21, 2012 Share Posted October 21, 2012 Maybe another Syvecs controller knob so you can manually adjust this? Would allow you to fine tune depending on where you are (different surfaces) and how well prepped it is. Quote Link to comment Share on other sites More sharing options...
Style Posted October 21, 2012 Share Posted October 21, 2012 27.1 mph http://www.machinehead-software.co.uk/bike/speed_distance_time_calc.html Might be wrong, but worked it out using 18 meters, which is 60ft 27.3 mph Does this not only apply to travelling at a constant speed? The car is stationary when the timer starts and covers 60ft in 1.5 seconds. The Wallace calculator in the first post is the best bet I reckon. Quote Link to comment Share on other sites More sharing options...
mattdavies Posted October 21, 2012 Share Posted October 21, 2012 Considering the power and Grip that the car has, 0-60 is prob around 3 seconds. As the force against acceleration will increase the faster you travelling at 40-45mph speed at 60ft is more realistic. Quote Link to comment Share on other sites More sharing options...
SupraD06 Posted October 21, 2012 Share Posted October 21, 2012 If you use the third calculator down on the link i posted you can choose to ente SPEED and TIME, and when you put 28mph and then put 1.5 seconds, it says it will cover 61 feet. which ever one you use it comes out the same. Quote Link to comment Share on other sites More sharing options...
Tyson Posted October 21, 2012 Share Posted October 21, 2012 If you use the third calculator down on the link i posted you can choose to ente SPEED and TIME, and when you put 28mph and then put 1.5 seconds, it says it will cover 61 feet. which ever one you use it comes out the same. But that's using the average speed he wants to know the actual speed, 45 mph sounds more realistic. I was wrong above. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 21, 2012 Share Posted October 21, 2012 With a decent ecu like a Syvecs it's trivial to just have a dashboard knob to control the trigger speed. Quote Link to comment Share on other sites More sharing options...
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