Speedometer Is Off By 20 Mph at Janet Helton blog

Speedometer Is Off By 20 Mph. So i just purchased this 1972 nova (last night) and i used my gps to figure out how far off it was on mph. If it's at 60 mph, then that's about 9/60=.15 so it's 15% off. You need to slow it down, so you need more teeth on the driven gear. Looks like 40 mph is 60 on. Offset error means the speedometer is off by constant mph at all speeds. It’s when a speedometer is off by 5 mph or more that you may want to consider having it checked. If it has, say 22 teeth now, you'd need 22 x.15 = 3.3. Crawlpedia's vehicle speed offset calculator will tell you how far off your vehicle's speedometer is as a result of running larger tires and/or new. Figure out the percentage that your speedometer is off by and multiple your existing speedometer gear by that number. If the car is modern, with an electronically controlled speedometer, your dealer may be able to adjust one of the car's brains. The limited data you've provided indicates you.

Crawlpedia's vehicle speed offset calculator will tell you how far off your vehicle's speedometer is as a result of running larger tires and/or new. It’s when a speedometer is off by 5 mph or more that you may want to consider having it checked. If it has, say 22 teeth now, you'd need 22 x.15 = 3.3. You need to slow it down, so you need more teeth on the driven gear. If the car is modern, with an electronically controlled speedometer, your dealer may be able to adjust one of the car's brains. The limited data you've provided indicates you. So i just purchased this 1972 nova (last night) and i used my gps to figure out how far off it was on mph. If it's at 60 mph, then that's about 9/60=.15 so it's 15% off. Looks like 40 mph is 60 on. Offset error means the speedometer is off by constant mph at all speeds.

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Speedometer Is Off By 20 Mph Crawlpedia's vehicle speed offset calculator will tell you how far off your vehicle's speedometer is as a result of running larger tires and/or new. If the car is modern, with an electronically controlled speedometer, your dealer may be able to adjust one of the car's brains. If it's at 60 mph, then that's about 9/60=.15 so it's 15% off. Offset error means the speedometer is off by constant mph at all speeds. Looks like 40 mph is 60 on. You need to slow it down, so you need more teeth on the driven gear. Figure out the percentage that your speedometer is off by and multiple your existing speedometer gear by that number. Crawlpedia's vehicle speed offset calculator will tell you how far off your vehicle's speedometer is as a result of running larger tires and/or new. So i just purchased this 1972 nova (last night) and i used my gps to figure out how far off it was on mph. The limited data you've provided indicates you. It’s when a speedometer is off by 5 mph or more that you may want to consider having it checked. If it has, say 22 teeth now, you'd need 22 x.15 = 3.3.