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> Speedometer is off, I just changed my tires....
post Feb 26, 2003 - 10:22 AM
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CelicaQT



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Ok I need some info any of you guys/gals can give me. I just recently changed my tires bcus I wasn't getting any traction or handling on them during this winter season. Plus they were getting bald. I went from a 205/50R/15 to a 205/50R/15 and I read that your speedometer may be off?? SO I was wondering if anyone would know how to calculate how much I lost going to a lower radial?? Doing 80 on the freeway seems like i'm only going 70-75mph or doing 25-30mph doesn't seem like the actual speed either.

I got Yokos on them I was supposed to get Toyos ....long story....but regardless the handling and cornering on them is a lot smoother than my old worn out tires. Could it be that I'm just getting used to the new tires?
 
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post Feb 26, 2003 - 12:05 PM
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3TST



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205x50x15 is the standard size so your speedo reading should be pretty accurate.
However, if you went for 205x55x15 then the speedo will be out but not by much. (sorry not sure how to calculate this).

Posts in this topic
- CelicaQT   Speedometer is off   Feb 26, 2003 - 10:22 AM
- - 94TRDCeli   dude you realise that you said you went from one t...   Feb 26, 2003 - 11:04 AM
- - CelicaQT   Ohhhh oops..mah bad. I ment I had a 55R then went ...   Feb 26, 2003 - 11:06 AM
- - CelicaQT   Ok well I think I mighta figured it out. I think t...   Feb 26, 2003 - 11:13 AM
- - 3TST   205x50x15 is the standard size so your speedo read...   Feb 26, 2003 - 12:05 PM
- - 95STCelica   Speedometer reading : stock tire is 3.5% too slow....   Feb 26, 2003 - 3:34 PM
- - CelicaQT   I found out that with the new tires on (50R's)...   Feb 26, 2003 - 4:09 PM
- - Milds3vn   Check this out to calculate any size changes... ht...   Feb 26, 2003 - 4:53 PM
- - CelicaQT   LOL ok I was told that also. Man seems like all of...   Feb 26, 2003 - 5:03 PM
- - 95STCelica   QUOTE (Milds3vn @ Feb 26, 2003 - 2:53 PM) Check th...   Feb 26, 2003 - 11:53 PM
- - Neipas09   Just set your cruise for 60. When you hit a mile m...   Mar 7, 2003 - 8:02 AM
- - CelicaQT   I don't have cruise...my ST didn't come wi...   Mar 7, 2003 - 3:45 PM
- - 95STCelica   stupid ST's lol   Mar 7, 2003 - 9:22 PM
- - Neipas09   My ST came with it, so for me!   Mar 11, 2003 - 7:18 PM
- - Zoom   http://www.c5-corvette.com/tirecalc.htm one more ...   Mar 12, 2003 - 12:17 AM
- - CelicaQT   I actually like that site better! It's got...   Mar 12, 2003 - 10:06 AM
- - SpedToe169   Even with the stock size tires its still not very ...   Mar 12, 2003 - 2:25 PM
- - 95STCelica   That website made things a lot easier to understan...   Mar 15, 2003 - 12:15 PM
- - hioctane   wow only 1.6% off with gts rims =)   Mar 24, 2003 - 8:48 PM
- - Zoom   SpedToe, with stock, is 4% off a high or low readi...   Mar 25, 2003 - 7:19 PM
- - pflau   yo if you really wanna find out for sure get someo...   Apr 12, 2003 - 11:26 PM
- - presure2   with the stock 15's on w/ 205/55's the spe...   Apr 13, 2003 - 7:30 PM


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