speedometer question

[ionstriker]

Recently I have been noticing a something weird about the speedometers in some cars. I just bought the nissan skyline r33.then went to gt auto and changed the oil. I was just doing some races and noticed that the speedometer was maxing out at 180kmph obviously this isn't the top speed the car does well above250 but the cockpit view speedometer maxes out at 180.anyone know what's happening?

 

[rosckolove]

Was it not maxing out before? Maybe thats just where it stops. Some Speedo needles have a limit, Some just keep going past the numbers, In real life.

 

[sumbrownkid]

They put a generic dial for that car as it is a standard.

It doesn't really matter though as you have a digital number telling you anyway what speed you are doing. Though it does get annoying when you want to know what gear to go to and you are beyond the limits of the dial.

And Bangalore? I've got family there.

 

[ionstriker]

But this is a premium model not standard. What I don't understand is why does the speedometer have 180 as the top speed?the car can do well over250 as stock.yes I'm from Bangalore

 

[sumbrownkid]

Oh my mistake, I thought you were talking about the standard car.

Are you talking about the actual speedometer modeled in the car or that digital one that is present if you don't turn it off?

Well anyway I did a Google search and the speedo is limited to 180 KPH, so PD faithfully reproduced that detail. Looks like Nissan only wanted their customers to do 180 at most.

 

[ionstriker]

Oh so that's why. But for a sports car that's less. Thanks for the help

 

[sumbrownkid]

Oh so that's why. But for a sports car that's less. Thanks for the help

Well it is Japan, So I figure Nissan thought GT-R owners would be rarely exceeding the limits on public roads.

And no problem.👍

 

[roflcoptor]

180kph (112mph) is what JDM cars are limited to, electronically.

Interesting article on why this came about:

http://www.japantimes.co.jp/text/fv20080413pl.html

 

[byegad]

Quite a lot of cars have this. I can't remember which car I was using for the Nordscheife race in one of the numbered Challenges 650pp race but I was clocking 200mph+ and the speedo only went to 160mph.

 

[Giulietta73]

180kph (112mph) is what JDM cars are limited to, electronically.

Interesting article on why this came about:

http://www.japantimes.co.jp/text/fv20080413pl.html

Cheers for that - an interesting read, explains a lot:tup:

 

[Morgoth_666]

For what little it's worth I used to have a car in which the speedometer stopped at 85mph. It had a top speed of about 15mph.

It does make sense if that is the maximum speed they are allowed to achieve legally, even if it is kind of annoying in the game. Lots of cars have similar problems, and of course the HUD speedometer in bumper view has the same issue. In the real world it probably wouldn't be that difficult or expensive for someone interested in doing some serious track driving to get an aftermarket speedometer to solve the problem, but we're stuck with the stock one. What do ya do?

 

[byegad]

IRL I remember my mother driving our Ford Anglia Super at more than the indicated 90mph, that was the last number on the speedo and a friends Morris 1000 Traveller doing IGN* down hill.

*I may be wrong at it could have been OIL. Either way it was way past the 80??mph top end of the clock.

 

[eran0004]

Recently I have been noticing a something weird about the speedometers in some cars. I just bought the nissan skyline r33.then went to gt auto and changed the oil. I was just doing some races and noticed that the speedometer was maxing out at 180kmph obviously this isn't the top speed the car does well above250 but the cockpit view speedometer maxes out at 180.anyone know what's happening?

Speedometers are really only interesting when you need to stick to a speed limit. I doubt there are any speed limits that go higher than 120-130 km/h.
When racing, the gear and the revs is what's interesting. You learn the track in terms of gear rather than speed (like, for corner X you brake to 3rd gear, on corner Y you brake to 2nd gear, corner Z is done in 4th gear etc).

That could be a reason why the speedometer only goes to 180, because beyond that the speed is just of academic interest. Also, the longer the scale is, the more cluttered it will be. The shorter the scale is, the more precise you'll be able to read it.

 

[roflcoptor]

Also worth bearing in mind, although not particularly applicable to the OP question, is that speedometers are designed to "over read" the car's speed, by no more than +10% but never less than the "real" speed.

http://www.thecarexpert.co.uk/how-accurate-is-a-car-speedometer/

 

[CupKonan04]

Public road speed limits.

 

[Hyped]

Public road speed limits.

112 MPH speed limits? The answer was already stated above, Japanese cars are limited to 180 KMH/112 MPH electronically by law.

 

[CupKonan04]

112 MPH speed limits? The answer was already stated above, Japanese cars are limited to 180 KMH/112 MPH electronically by law.

There you go. They are regulated by law because they have speed limits on their roads. Otherwise they would not be electronically limited I suppose.
Here, there are parts of the highway that have no speed limit and you can legally remove the electronic limiter from your car.
Japanese are just limiting it because they think "when there are speed limits, why not limit the car's speed?" down. I think they put it to 180 KMH because the Skyline is a sports car and there are race tracks in Japan open for the public to drive on.

 

[peter_vod69]

180kph (112mph) is what JDM cars are limited to, electronically.

Interesting article on why this came about:

http://www.japantimes.co.jp/text/fv20080413pl.html

There you go. They are regulated by law because they have speed limits on their roads. Otherwise they would not be electronically limited I suppose.
Here, there are parts of the highway that have no speed limit and you can legally remove the electronic limiter from your car.
Japanese are just limiting it because they think "when there are speed limits, why not limit the car's speed?" down. I think they put it to 180 KMH because the Skyline is a sports car and there are race tracks in Japan open for the public to drive on.

The link was JUST UP THERE!!!

 

[Tornado]

Similar thing happened in the early 1980s over here. 85MPH speedometers were made law (and 55MPH had to be specially marked in some way as well at first) for the 55MPH national speed limit, except there was no governors installed to the cars. So manufacturers started doing stuff to get around it without actually going against the law for cars that could very obviously go faster than 85MPH, so we got silly things like the Corvette C4 digital speedometer, where the digital readout would go into the triple digits but the "analog" one would not:

Or the Mustang SVO speedometer, which would go to 140 but the readings only went to 85 (and the Ferrari 308 did the same thing for it's first few years):

Or the Dodge Omni GLH speedometer, where they made it so the speedometer would start to loop instead of stop and just put a sticker on the top of the guage:

 

[Slash]

Similar thing happened in the early 1980s over here. 85MPH speedometers were made law (and 55MPH had to be specially marked in some way as well at first) for the 55MPH national speed limit, except there was no governors installed to the cars. So manufacturers started doing stuff to get around it without actually going against the law for cars that could very obviously go faster than 85MPH, so we got silly things like the Corvette C4 digital speedometer, where the digital readout would go into the triple digits but the "analog" one would not:

Or the Mustang SVO speedometer, which would go to 140 but the readings only went to 85 (and the Ferrari 308 did the same thing for it's first few years):

Or the Dodge Omni GLH speedometer, where they made it so the speedometer would start to loop instead of stop and just put a sticker on the top of the guage:

A lot of old cars said 85 on the speedo. I've seen them do over 110.

 

[playnthru]

A lot of old cars said 85 on the speedo. I've seen them do over 110.

So has everybody else. That was his point.

 

[LR-MR-Cole]

all japanese cars were limited to 180kph back than also JDM cars were not manufactured to have over 275hp back than either. Ever notice JDM cars in the older gran turismos, none ever had over 275hp. The Imprezas and Skylines. Not till the R35 did the skyline exceed that 275hp mark and by alot