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GT-R GPS speed limiter
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36 / F / Norfolk, VA
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Posted 3/24/08
I just heard about the GT-R's GPS based speed limiter (set to 180km/h). Apparently in Japan there is a law mandating that cars can not exceed 180km/h, and that Nissan installed a GPS speed limiter that detects when you are on a circuit or not and will disengage when you are on the track. I read conflicting articles, some saying that there won't be any such speed limiter, other's saying that it will be set to 156mph, and yet another saying that it will be set to 180km/h and won't disengage when it detects you are at a track.

Anyone heard about this too? What do you guys think?
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27 / M
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Posted 3/24/08
if there is one thn people willjust find a way to lose/disengage/break/trick it so that it takes the speed limiter off
Posted 3/24/08

TEAMSpiceMishy wrote:

I just heard about the GT-R's GPS based speed limiter (set to 180km/h). Apparently in Japan there is a law mandating that cars can not exceed 180km/h, and that Nissan installed a GPS speed limiter that detects when you are on a circuit or not and will disengage when you are on the track. I read conflicting articles, some saying that there won't be any such speed limiter, other's saying that it will be set to 156mph, and yet another saying that it will be set to 180km/h and won't disengage when it detects you are at a track.

Anyone heard about this too? What do you guys think?


thats pretty damn smart of Nissan.

i like it.
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28 / M / Oklahoma
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Posted 3/24/08
Oh, it's there. Top Secret is hacking it's way into it's computer.
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M
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Posted 3/24/08
It was a good try.... if I had one it would be gone the moment I found it
Posted 3/24/08

TEAMSpiceMishy wrote:

I just heard about the GT-R's GPS based speed limiter (set to 180km/h). Apparently in Japan there is a law mandating that cars can not exceed 180km/h, and that Nissan installed a GPS speed limiter that detects when you are on a circuit or not and will disengage when you are on the track. I read conflicting articles, some saying that there won't be any such speed limiter, other's saying that it will be set to 156mph, and yet another saying that it will be set to 180km/h and won't disengage when it detects you are at a track.

Anyone heard about this too? What do you guys think?


yeah i also heard the reason is becuz the police cars aren't fast enough for it or soemthing liek that. not sure
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27 / M
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Posted 3/25/08

Your_Typical_Friend wrote:


TEAMSpiceMishy wrote:

I just heard about the GT-R's GPS based speed limiter (set to 180km/h). Apparently in Japan there is a law mandating that cars can not exceed 180km/h, and that Nissan installed a GPS speed limiter that detects when you are on a circuit or not and will disengage when you are on the track. I read conflicting articles, some saying that there won't be any such speed limiter, other's saying that it will be set to 156mph, and yet another saying that it will be set to 180km/h and won't disengage when it detects you are at a track.

Anyone heard about this too? What do you guys think?


yeah i also heard the reason is becuz the police cars aren't fast enough for it or soemthing liek that. not sure


they have GTR's for police cars..

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28 / M / Oklahoma
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Posted 3/25/08

aznrice2k4 wrote:

There are worse things than the limiter.


1. Weight of the car almost 4k pounds
2. Price 80k list with 15-20k mark up by dealers
3. Nissan was caught lying about the NURBURGRING TIMES
4. Cost of maintainence
5. With all the electronics the GTR is virtually un-modable
6. You must keep the GTR 2 years, if you sell it within the 2 year time frame the warranty is void.

If HKS, MINE'S and TOP SECRET are having a hard time even fitting a aftermarket intake that will work. I have serious doubts about anyone else being able to.

The various electronic safeguards that Nissan has built into the all-new R35 GT-R are, by now, well known. From its location-specific speed limiter to it's integral turbinehousings/exhaust manifolds, the GT-R looks like a pretty tough nut to crack in terms of modification, but according to Motor Trend, Nissan's restrictions even extend to that most fundamental of modifications: aftermarket wheels.

That's right. Thanks to the GT-R's tyre pressure monitoring system, you can't fit a set of aftermarket rims to the R35 without the ECU having a hissy fit and throwing an error code. Whether the error code engages some kind of "safe" tune (bad)or simply lights up the "Check Engine" light (not so bad) isn't clear, but considering that wheels used to be one of the easiest - and common - things to change isn't going to make the tuner community very happy.

That being said, the R35 racing prototype that was spotted after the last Nismo Festival had a set of TE37s on it (below), so whacking on some new rollers probably doesn't make the ECU completely **** itself. And anyway, MCR have already put four Enkei GTC01s on their GT-R and they race the thing, so we're betting it makes no difference to the rest of the car. Except for that warning light, of course.

As for the speed limiter, yes it'll let you unleash the GT-R's full potential if the GPS detects you're at a bona-fide racetrack, but once the track day is over you need to return the car to Nissan and fork over $1000 for a safety check, with failure to do so resulting in the car's warranty being voided. Harsh.

Replacing the air filter element is possible, however replacing the airbox with a pod-style filter apparently makes the engine run like a dog. Exhaust modifications are possible though, with Mine's proving that some ponies can be freed up with a new set of pipes (below). Mine's have also released their own VX-ROM ECU tune for the R35, with the factory speed and boost limiters being removed

Oh, and as for those turbos, the only way you'll be able to replace them is to wait for somebody to release a stand-alone manifold for the VR38. Don't hold your breath.


Nissan's anti-tuning measures sure are draconian and to be honest, a bit of a slap in the face for the tuner community that more or less built up the GT-R legend. It might seem bad for the enthusiasts, but remember: when there's a will, there's a way, and companies like Mine's, Top Secret and HKS are showing that they've got plenty of the former.


As it stands right now the best time on the ring for a GTR, one like you buy at the dealer 7:50, a bit slower than the times Nissan was claming with the highly modded GTR on slicks with a pro driver of 7:38 which has been offically DQ'd by NURBURGRING. There are videos of the flying starts and stopping short of the finish line. The GTR that claimed the fast time of 7:38 was not a production model car.


The GTR cheating the Nurburgring time attack was a mistranslation. The track had wet spots but still driven on it's OEM tires.

If the car was really on slicks and highly modded to it's production counterpart, 12 second different between modded and stock on a 12 mile track is stretching the truth. That's modded gaining 1 second per mile. 1 second a mile is pure laughter.

http://www.nissangtrproto.com/2007/news/738-tire-question/
Posted 3/28/08
There are already jap tuning companies which have ways to remove the speed limiter based around ECU modifications.
Posted 3/28/08
wow!!! the japs know how to use their technology to abuse others
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29 / M / California
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Posted 3/28/08

Your_Typical_Friend wrote:


TEAMSpiceMishy wrote:

I just heard about the GT-R's GPS based speed limiter (set to 180km/h). Apparently in Japan there is a law mandating that cars can not exceed 180km/h, and that Nissan installed a GPS speed limiter that detects when you are on a circuit or not and will disengage when you are on the track. I read conflicting articles, some saying that there won't be any such speed limiter, other's saying that it will be set to 156mph, and yet another saying that it will be set to 180km/h and won't disengage when it detects you are at a track.

Anyone heard about this too? What do you guys think?


yeah i also heard the reason is becuz the police cars aren't fast enough for it or soemthing liek that. not sure


There's two classes of japanese police cars. One is the ones advertised hugely in the tokyo drift movie that are all factory-spec with very light tuning.

Second is the high performance spec cars custom built for speed and durability. These include the Spirit-R RX7s, the entire GTR skyline series, MKIV supras, Suzuki Hayabusas, etc.

However, they try to save the second class of cars for high-risk criminals or for extreme situations.
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Posted 3/29/08
speed limiters aren't new at all, people will be able to disengage it in no time.
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27 / M / Adelaide, Australia
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Posted 3/29/08
If there was a speed limiter just go and take it out or mod the GPS speed limiter..
just think about it.. theres no law that u cant take it out
Posted 3/29/08
Well....there are variants of GT-Rs if its the ordinary V-Specs it only goes up to 180 but if u have a limited edition M-Spec Nur and V-Spec II Nur (based on the Homologation Specials) it can go up to 340 kph.
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25 / M
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Posted 3/29/08
don't all cars have to be moded to like become at top speed because the engin has a auto shut off but you an change that?
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