DAMN TICKETS! where can i have my speedo checked to see if its off?
 

basicly what it says.. i keep getting pulled over for 10 over when my speedo says im doing like 5 over.. (not on purpose, i just always happen to go that fast around cops) is there anywhere anyone knows of that will test my speedo?... im sure if i took that to the court they would drop it as long as its proven to be off.. i hope.. thanks

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

take thoes huge wheels off your car :P

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

Get a buddy w/ a stock tire/rim setup and have them drive 30 mph. If your speedo says 30 and you're going faster than them, you're screwed.

There's a rim/tire/gear calculator on Miata.net or something like that. Try that maybe?

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

You aren't gonna get off by proving your own speedometer is off, you're going to seal the case. :P

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

That's true. A radar isn't going to be wrong because of your speedo ;)

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

i only have 15's on my CRX. LS webbs.. thats just retarded though, how am i supossed to know if my speedo is off right after i do an engine swap?... damn cops, always ruining my day lol

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

I noticed a slight difference in my speedo when I put the LS webs on my Hatch. Not 10mph though. Did you also swap trannies when you did the swap? Maybe the speed sensor in the tranny is different.

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

I dont know if you have them around you, but cops always put up those big mobile speed detectors on the sides of the road. Just keep driving past one of them to check your speedo.

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

i tried that in court with a different car, they told me that its not a valid way of checking the speed. ridiculous, the court system in washington is messed up. they tell you to get your car adjusted at a shop with a speed calibrater.. yet they cant tell me where i can do that at, just state "thats not my problem" and hand me the ticket.. and i was doing slightly over, not that much.. but damn.. all this for 5 over ! and now i face losing my license.. kinda sucks cause ive been driving nice! mostly.. haha and when i do get a ticket.. im not intending to speed.. i just happen to not pay attention at the wrong time i guess.. i need to become a lawyer so i can fight my own case in court or something, damn i dunno.. maybe i should get a radar jammer or something hah

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

In Nevada, if yoyu get a ticket for speeding and get a written statement from a mechanic saying that it was because your speedo was off, they will waive it

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

any mechanic? really? i work at les shwab now.. haha maybe i can do it.

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

dumbass, if you change the wheels, it's likely that the actual tire size will be a little different. Even a 3% change is an extra 2mph off at 70mph (if you think it's safe to go 7 over, you're actually going 9 over, which will probably be rounded up to 10 over, now you're at 80 with a ticket :-\). Plus all speedos are going to be off by a little bit, so you need to take that into account.

The best way to figure out (and yes, this is your responsibilty) your speedo error is to get a descent GPS unit, while they are not totally accurate for location (usually 5-10m circle), they are very accurate for velocity. Just cruise at what your speedo says is 10/20....50/60/70/80 and record the speed on the GPS, then you'll know what's really happening.

Cops know that speedos are off, cop cars have to have theirs tested and it is usually recorded in the driver door sill. I saw one car that almost 6% off at 70. (said 70, was going 74).

Best idea is to go the speed limit when you're alone, the speedo error shouldn't be enough to get you pulled over unless you're on dubs or something stupid. If you're in traffic, just go with the flow, and never lead a pack.

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

careful carl ;)

do the math.

185/60R14, 195/50R15, 205/40R16 all have the same rolling diameter (within 1%) ;)

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

I went to San Diego the past weekend and they had speedometer checks on the road. Basically 1, 2, 3 mile signs. Just time youself at a certain speed and do the math.
You must have a steady foot or cruise control to get it right.
My cruise control was set to 70mph and after the calculations it came out to 69.9XX mph

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

What a good time to hit the dyno!! It will tell you the truth

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

Or buy a GPS system.
they can tell you your speed.

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

just have your friend go 35mph in a car infront of you. then follow him and keep the same speed. its not real hard to do.

Re: DAMN TICKETS! where can i have my speedo checked to see if its off?
 

I have known two people that got their tickets continued for 1yr because of a speedo error.

It was just a matter of a lenient judge and it being their only speeding offense. They didn't really get off though, they essentially got 1yr probo and had to have the speedo fixed. If they fucked up, they got both of the tickets.

edit- A cop is a -----tard if he gives you a ticket for 10 over on a freeway. So long as you were decently with the flow of traffic, and not tailing anyone or anything.