Carl Eagle Posted May 24, 2011 Report Share Posted May 24, 2011 How do I figure out how much the speedometer is off since changing from the 3.42s. I cant afford a tune right now and Im not actually ready for one yet...Have some other things I want to do first... Thanks guys, Carl Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted May 24, 2011 Report Share Posted May 24, 2011 If you have GPS on your phone you can get your speed that way. Quote Link to comment Share on other sites More sharing options...
jddmj Posted May 24, 2011 Report Share Posted May 24, 2011 If you have GPS on your phone you can get your speed that way. And I have both Captain. We will have to check it out. Quote Link to comment Share on other sites More sharing options...
sprayed99 Posted May 24, 2011 Report Share Posted May 24, 2011 How do I figure out how much the speedometer is off since changing from the 3.42s. I cant afford a tune right now and Im not actually ready for one yet...Have some other things I want to do first... Thanks guys, Carl Curiousity..... why 3.42 to 3.73? why not 4.10? Quote Link to comment Share on other sites More sharing options...
Carl Eagle Posted May 24, 2011 Author Report Share Posted May 24, 2011 Curiousity..... why 3.42 to 3.73? why not 4.10? I have an extra parts rear end and thats what was in it. I thought about buying a set of 4.10s for it but I already had the 3.73s so I just used them...and I can deffinatly tell a difference in them. Quote Link to comment Share on other sites More sharing options...
Silverad0 SS Posted May 24, 2011 Report Share Posted May 24, 2011 Curiousity..... why 3.42 to 3.73? why not 4.10? 3.73 are better in a awd drive SS, believe Me or not but there is a guy with a stock SS awd that he put 3.73's that lives around my area, he raced another stock SS with 4.10 and the SS with 4.10's beat him 1/8 of a mile and the other SS passed him up and beat him by 2 and half car lengths everytime lol I'm keeping my SS because I normally race red light to red light lol Quote Link to comment Share on other sites More sharing options...
chpspecial Posted May 24, 2011 Report Share Posted May 24, 2011 With Stock SS size tires. Your speedometer and trans settings will be off by -9.06%. Quote Link to comment Share on other sites More sharing options...
Carl Eagle Posted May 25, 2011 Author Report Share Posted May 25, 2011 With Stock SS size tires. Your speedometer and trans settings will be off by -9.06%. Thanks chpspecial, if im doing my math right at 60 mph my speedo will be off about 5 to 6 mph? Quote Link to comment Share on other sites More sharing options...
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