Ok, so, I just got another speeding ticket yesterday, thats 2 in < 2 months.
Now the obvious solution here that I am trying to work on is *slow the hell down*. The problem is that I honestly do not realize I am going that fast.
In order to help me with this, I'd like to remake my speedometer. The most obvious problem (besides my impatience) is the gear ratio error from the larger tires (205s). While the error is not a massive %, it's not trivial for me to keep up with it and constantly re-calibrate in my head. And, most of the time I just forget it. W/ only 5k on the Pirellis, re-sizing is not an option.
The other thing that bugs me is the relative scaling of the speedo. I know you guys that do track runs may need it, but why this thing reads up to to 140 mph is beyong my comprehension, since there's no way the stock vehicle could do anywhere near that. This creates 2 problems for everyday drivers like me. First, the numbers only go up by 20s, and the big ticks by 10s. You have to pretty much guess at where, say, 55 is. I find that very annoying.
Second (and more relevant here), it means that a 10 mph difference is only about 1/2" deflection of the needle.Also, this means that you have to be going 70 to just hit the vertical point. Psychologically this is very bad b/c it really shows how much faster you *could* be going... if it topped out at 85, it's much more obvious when you're near the "top", plus each change would be more clear. I want a speedo that really emphasizes increases in acceleration etc.
The point of all this is, I'd like to swap in a face that tops out at, say, 90 or 100. Key is a replacement that looks nice. I see 2 ways to do it. 1 - dig around and get an aftermarket speedo and try and fit in there and calibrate it, or - 2 - replace the face, and modify the incoming signal so that it reads correctly. I'm worried about the odometer, though... I don't want my mileage off by 35%!
I'm just starting the research now, so I'm open to ideas/suggestions. Some things that come to mind - Are the odo and speedo feeding off the same signal? What kind of signal is it, just voltage from a speed sensor? I get the impresion (from a How To) the odometer is actually in the PCB, and not the LCD in the face, yes? Any suggestions on a recalibration unit to do the conversion? Etc etc.
Thanks guys!
Now the obvious solution here that I am trying to work on is *slow the hell down*. The problem is that I honestly do not realize I am going that fast.
In order to help me with this, I'd like to remake my speedometer. The most obvious problem (besides my impatience) is the gear ratio error from the larger tires (205s). While the error is not a massive %, it's not trivial for me to keep up with it and constantly re-calibrate in my head. And, most of the time I just forget it. W/ only 5k on the Pirellis, re-sizing is not an option.
The other thing that bugs me is the relative scaling of the speedo. I know you guys that do track runs may need it, but why this thing reads up to to 140 mph is beyong my comprehension, since there's no way the stock vehicle could do anywhere near that. This creates 2 problems for everyday drivers like me. First, the numbers only go up by 20s, and the big ticks by 10s. You have to pretty much guess at where, say, 55 is. I find that very annoying.
Second (and more relevant here), it means that a 10 mph difference is only about 1/2" deflection of the needle.Also, this means that you have to be going 70 to just hit the vertical point. Psychologically this is very bad b/c it really shows how much faster you *could* be going... if it topped out at 85, it's much more obvious when you're near the "top", plus each change would be more clear. I want a speedo that really emphasizes increases in acceleration etc.
The point of all this is, I'd like to swap in a face that tops out at, say, 90 or 100. Key is a replacement that looks nice. I see 2 ways to do it. 1 - dig around and get an aftermarket speedo and try and fit in there and calibrate it, or - 2 - replace the face, and modify the incoming signal so that it reads correctly. I'm worried about the odometer, though... I don't want my mileage off by 35%!
I'm just starting the research now, so I'm open to ideas/suggestions. Some things that come to mind - Are the odo and speedo feeding off the same signal? What kind of signal is it, just voltage from a speed sensor? I get the impresion (from a How To) the odometer is actually in the PCB, and not the LCD in the face, yes? Any suggestions on a recalibration unit to do the conversion? Etc etc.
Thanks guys!
Last edited: