speedometer

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re discussing mating an electric speedometer to a […]

Q: I am having trouble finding the correct speedometer gear for my 1970 Mustang. The car has a top loader 4-speed transmission and a 4.10:1 rear-end ratio. I’m running 26-inch-tall […]

Q: I recently had a new set of tires installed. I opted to go with a larger diameter than the originals that were on the car. Will this affect the accuracy of […]