Speed difference with 195/60R14 ?
05-15-05, 09:08 PM
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Speed difference with 195/60R14 ?
I just noticed that my FC, with stock rims, has 195/60R14's, and OEM size is 185/60R14. What is my speedometer difference?
I seem to be atleast 10mph faster on the gauge.
Is there some variance/difference chart or calculator to see how much speed difference with various tire & wheel sizes?
I seem to be atleast 10mph faster on the gauge.
Is there some variance/difference chart or calculator to see how much speed difference with various tire & wheel sizes?
05-15-05, 09:20 PM
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circumference:
195/60 14 = 72.92 inches
185/60 14 = 71.44 inches
For an arbitrary distance, the 195s turn 98% of the stock 185s. Therefore, speedo will read 2% too low. If you are going 100 mph, the speedo will read 98 mph. Hardly a big deal. Your final drive ratio will be slightly higher, slightly slowing acceleration.
Your speedo is reading wrong, and has little to do with your tires.
195/60 14 = 72.92 inches
185/60 14 = 71.44 inches
For an arbitrary distance, the 195s turn 98% of the stock 185s. Therefore, speedo will read 2% too low. If you are going 100 mph, the speedo will read 98 mph. Hardly a big deal. Your final drive ratio will be slightly higher, slightly slowing acceleration.
Your speedo is reading wrong, and has little to do with your tires.
05-17-05, 12:58 AM
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Well last time I drove her, I was in the "slow lane" on I-5 in Seattle, WA and my Speedo was reading about 70.
I know I was not doing 70 at all..the slow lane is usually 50-55.
I wish I had Cruise Control so I can time my speed @ 60mph
I know I was not doing 70 at all..the slow lane is usually 50-55.
I wish I had Cruise Control so I can time my speed @ 60mph
05-17-05, 03:26 PM
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I knew algebra would bee needed in real life, I am trying to remember algebra from high school...whats the formula to figure out my speed?
Say on the freeway I try to keep at a steady 60mph, I time how long it takes me to get form mile marker to next one...then devide distance with time?
Say on the freeway I try to keep at a steady 60mph, I time how long it takes me to get form mile marker to next one...then devide distance with time?
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