Speed Limiters

[GRK35L]

went to mates private property and did a run , speedo kept going past 180 and but figure it must be out a bit though it went near to perhaps a 200km mark , then backed off as was running out of road

Also have purchased a Speed Meter , though R6n350gt has put a tutorial on how to install up will be taking the car to auto elecs to hopefully sort out the delimiter using the Speed meter , will keep track of results and post up once done , if it is figured out then $135 is a good price to delimit car , as well as recording 1/4 mile times,

[Ben_H]

Yeh you can deff recal it. there are shops in syd that can do it.

Please: do tell how!

My V35 sedan is very much out of whack due to tyres/wheels, and I have been quoted many, many hundreds of dollars to have the recalibration (to within +/- 1kmh) done.

[Ben_H]

(nil)

Edited May 24, 2011 by Ben_H

[Ben-88]

As mentioned before, the speedo guage stopping at 180 can be solved with the nismo guage set which runs upto 280 kmph. The actual speed limit can be fixed with various speed limit removers. Most jap tuners that make electronics make them. The pivot one is probably the most reasonably priced at only about $150 delivered. They have digital speed display upto 350kmph and they remove the speedcut.

Here is the link on nengun

http://www.nengun.co...t/speed-meter-v

Even if you have the nismo gauges already so dont need the digital speed too, these units are still cheaper than all the other speed limit removers. Cant confirm compatibility as i havent looked into them too much. HKS and other brands also make speed limit removers but are more expensive, the HKS ones are around $350 but i think they are model specific.

If youre having issues with speedo being out, your probably better off picking up a guage like scanguage or something that reads speed off the ODB port and allows for adjustments. I know the scanguage does allow adjustments in the speed as i think they are originally designed for 4wd's which often run larger wheels and have speedo issues. You can pretty much just put in a % correction for what it displays on the screen. This could be worked out with a tire size calcualtor to see the % speed difference and confirmed as correct with a GPS.

Edited May 24, 2011 by Ben-88

[scotty nm35]

The HKS one should work at least but I wouldn't recommend cutting the CAN line to install it, all your speed data goes down the CAN line, there is no speed signal wire going to the ecu to bend. Just get an aftermarket ecu from Japan.

[T4NK]

Who would you have to see to have that installed Ben?

[T4NK]

Please: do tell how!

My V35 sedan is very much out of whack due to tyres/wheels, and I have been quoted many, many hundreds of dollars to have the recalibration (to within +/- 1kmh) done.

i just did a googled speedo recal sydney found some places but call around a few performance places they should be able to do it, Croyden auto sports should be able to do it.

[Nee-san]

I drove a 180SX type X with a fully standard engine and the speed limit was quite aggressive, worked its way upto 181KPH and then BAM feels like ive put the breaks on back down to 170.

[zei20l]

yup different on SR20s. there is no electronic throttle so it uses a fuel cut

[Ben-88]

The HKS one should work at least but I wouldn't recommend cutting the CAN line to install it, all your speed data goes down the CAN line, there is no speed signal wire going to the ecu to bend. Just get an aftermarket ecu from Japan.

Who would you have to see to have that installed Ben?

Well thats a good point, a bit risky cutting into the can line.. all these new bus type setups are awfully complicated to work with when there arent plug and play electronics available. Not sure where you would have it installed, or rather who you would trust to have it installed.

It seems the pivot unit at least has been confirmed as not working for speed limit removal in this DIY article http://www.skylinesaustralia.com/forums/topic/364333-pivot-speed-meter-v-diy/

but the speedo does work for anyone that wants an alternative to the nismo guages.

Fortunately for us though, as mentioned there are many tuning companies where you can just buy an already flashed ecu with speed cut removed and other features. They fill up like a whole page in hyper REV.

[T4NK]

Hmm i think the best option is going to be to get the nismo dash to keep the car looking clean on the inside and get the ECU flashed or replaced gona be expensive but will keep the car looking clean on the inside which is what i like.

[zei20l]

if youre doing over 180km/h, the last thing youll be doing is looking down at the speedo

[T4NK]

if youre doing over 180km/h, the last thing youll be doing is looking down at the speedo

U gota look once or how can u brag to ur m8ts how fast u where going down the straight lol

[SKITTLES]

*skips all posts

I have an apexi thingo ma bob which removes the 180km/h limit.

I hit 200km/h and it makes a buzzing sound.

edit: Or you can use your apexi hand controller to record your top-speed.

but srsly i'd look down, 200km/h isn't that fast.

Edited May 25, 2011 by SKITTLES

[zei20l]

*skips all posts

I have an apexi thingo ma bob which removes the 180km/h limit.

I hit 200km/h and it makes a buzzing sound.

edit: Or you can use your apexi hand controller to record your top-speed.

but srsly i'd look down, 200km/h isn't that fast.

AAAAAAAAND you have a car that uses a single signal wire to the ecu that the apexi interrupts and changes

the V and M chassis use the CAN network to transmit it

[GRK35L]

So what happens when u cut this CAN line ? Is this what would need to be used when installing the speed meter to delimit car ?

[zei20l]

its the communications network that many of the devices and sensors use to communicate to the ECU and each other.

if you cut it, it MAY sever some essential communications. what if the ECU needs to see your speed when you hit the brakes and ABS kicks in? what happens if your engine stalls every time you pull up because the ECU didnt know you were moving.

there are hundreds of potential problems. and many people will ignore scott's warning, and this one. but its your car, cut away!

[GRK35L]

This makes me think it will be better just to install speed meter for display of speed and Other settings rather than cutting this wire , really don't want to stuff up the speed signals

its the communications network that many of the devices and sensors use to communicate to the ECU and each other.

if you cut it, it MAY sever some essential communications. what if the ECU needs to see your speed when you hit the brakes and ABS kicks in? what happens if your engine stalls every time you pull up because the ECU didnt know you were moving.

there are hundreds of potential problems. and many people will ignore scott's warning, and this one. but its your car, cut away!

[zei20l]

This makes me think it will be better just to install speed meter for display of speed and Other settings rather than cutting this wire , really don't want to stuff up the speed signals

best advice, ever lol

[R6n350GT]

best advice, ever lol

Also with the pivot speed meter it can tell you how fast you went with a press of a button. So dont look, just drive then once you have stopped or slowed you can press to see what the max speed was and the max g-force in acceleration and breaking 188 was the most i could get out of it with a quick run on private road. I have not tried to max it out yet..

As to another ECU, i was on the verge of getting a technosquare flashed ECU from a 350Z but even though it would match up i would have to get my keys reprogrammed so the BCM would work with the immbolizer again

If you gonna do all that crap you may aswell get a pivot speed meter and a Utec EMS which has got speed limit removal feature and then you can get your car tuned and get more HP out of it... be cheaper that nismo gauge, flashed ecu, reprogrammed keys etc..

Pivot speed meter is easy as piss to install, the Utec will be too (dont worry ill write a guide lol) and then get a tune. $200 an hour, 1-2 hours max if still NA.

So $150 del for pivot speed meter

$400-450 for Utec delivered (second hand)

Install both yourself = free

tune $400

Total *ish $950 for a tuned car, more HP (usually 8-10RWHP from a tune once u have bolt ons), delimited and a speedo upto 350km that can record top speed, top g force in acceleration and braking, show g force on the fly, and do 100,200 and 400m timed runs

If you go 280km speedo $600-800

HKS delimit $300-$400

Install = who knows.. $200+

Total *ish $1100 min

Edited May 26, 2011 by R6n350GT