View Full Version : Speedo

08-02-05, 04:15 PM
How Much Is The Speedo Of When You Are Running 24's?

08-02-05, 05:02 PM
How much what? If you use the same tire size as stock (overall height) the speedo will read the same. :)

08-02-05, 05:13 PM
ummm he said with 24's.

anyway good question. i just put my 24's on today and was thinking the same thing.

how much would they be off wth 305/35/24 tires?(i think that would be a clearer question)

08-02-05, 06:37 PM
The stock tire is 31.60 " high overall, the tire you are using (305/35/24) is 32.40" high overall, this will cause your speedo to read 58.5 mph when you are relly doing 60 mph

08-02-05, 06:45 PM
will something like the hypertech power programer correct this?

08-02-05, 08:02 PM
Yes, most brands of power programmers have a feature for speedometer re-calibration.

08-02-05, 08:11 PM
Theres a guy about 1 hr from where i live he tells me that for 400 dollars he will connect my caddy to the comp and make it better then predator,hyperthec,superchips and that will check it with the dyno thing so that i can see the diffrence is it a good price

08-02-05, 09:42 PM
I wouldn't waste the money.