DutchGT500 Posted June 8, 2015 Report Share Posted June 8, 2015 When I received my Lund tune my speedo error was messed up. I can now change the parameters for that in the tune. When my speedo reads 100 km per hour it is actually 108. It needs to be the other way around. 105 on speedo in real about 100. That saves me speeding tickets. It is now set at 750 revs per mile. Which way do I have to set the new number? Lower or higher to correct this? Who can explain? Quote Link to comment Share on other sites More sharing options...
Robert M Posted June 8, 2015 Report Share Posted June 8, 2015 (edited) If it is the Goodyear Eagle F1 Supercar, here are the specs from Tire Rack............ http://www.tirerack.com/tires/tires.jsp?tireMake=Goodyear&tireModel=Eagle+F1+Supercar&sidewall=Blackwall&partnum=84WR8F1SUPERCAR&tab=Specs It looks like 775 revs per mile is the spec for this size and brand. R Edited June 8, 2015 by Robert M Quote Link to comment Share on other sites More sharing options...
DutchGT500 Posted June 8, 2015 Author Report Share Posted June 8, 2015 thanks. Quote Link to comment Share on other sites More sharing options...
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