Top speed limiter????

[richieelliott]

has anyone hit the/a top speed limiter???? the reason i ask is cause when i diid i had a defect at the time and wondered if there is one or it was controlled by the ecu?! due to my problem which was a sensor.
it comes in at around 150mph 6000ish rpm and disables the accelerator until 145mph ish ?? no lights on the dash and no other indication with the exception of accelerator control it cant be the rev limiter as that comes in at 7200ish and please dont tell me off for going this fast :nono: ...so for arguments sake i did it on an abandoned runway!
please let me know or ill try and let you all know when and if i hit it on my trip
mine is a 96/97 manual legnum vr4

regards all

richie

[BraindG]

top speed i got was 148 think its limited to 150 took forever to get from 145 -> 148....its normal :INSERT INTO post VALUES (

[richieelliott]

yep thats the same as me glad i got that sorted as i was a bit unsure did you hit the limiter tho or were you just underneath it?

[BraindG]

didnt hit any limiter as such, no jerking or stuttering, jsut took foever to get from 145 -> 148...

[richieelliott]

ok... will try again lol

[zedy1]

keep us posted

[Brind]

I've only had it up to 135 ish.. so far.

BMW and the likes have limiters at 155mph and if they are removed on the higher end models they can go past the 155mph point but I don't believe the VR-4 can, the gearing ratio is too short so it simply can't go past 152mph max.
Whether there is a limiter I don't know but I'm sure if you were to hit the 'rev' limiter it would stop you anyway.

Most cars are said to be able to achieve top speed in 4th gear as well 5th, try that.. but chances are you will hit the rev limiter quicker but it may tell you the maximum speed.

[Brind]

Have a look at this article about top speed.

http://www.pumaracing.co.uk/topspeed.htm

[richieelliott]

definatly a limiter have hit it again

[pjjohnson]

In my 99 auto 6000 rpm in 5th would be over 160 mph - not that I've ever had it that fast. I wonder if manuals and autos have different gear ratios.

[Brind]

Originally posted by pjjohnson
In my 99 auto 6000 rpm in 5th would be over 160 mph - not that I've ever had it that fast. I wonder if manuals and autos have different gear ratios.

Probably, they usually do, although the INVECS is not a normal auto.
I've never seen performance figures for the manual but usually the top end on an auto is normally around 4 or 5 miles an hour slower top end, so if the figures claimed by Mitsi are correct and the top speed is 152mph as seen in most mags too, perhaps the manual could reach 155mph. :Ponder:

[richieelliott]

mine is manual and the speedo will not go over 150mph!

[Brind]

Well, that's my theory out the window then. :)

Do you have a newer model or the older?

[richieelliott]

96/97 model 6a13 engine ayc 2.5v6 tt

[Ultra VR-4]

mine cuts out at about 220kmph... whats that in miles?

[zedy1]

137.5 mph .what does your speedo show top end

[richieelliott]

148-149-150mph ish

[enigma]

Bought my car just over a week ago. It was imported from Japan from new in 1999 and has been in the UK ever since. My problem is that the Jap spec speed limiter still seems to be on the car limiting me to an embarassing 112mph top speed :confused:

Can anyone suggest how I can rectify this very serious problem? The speedo reads in mph, and I know when I fitted my converter to the MR2 I had a choice of applying it to the dashboard or the ECU.........if you connected it to the ECU though the power steering got a little confused as it was speed sensitive.

Thanks in advance to any help that can be given to rectify my problem.

[zedy1]

getr an apexi rev/speed meter fitted thats what ive done by the way you could always make a deal with me when youve done your exsaust :D :D :D

[enigma]

I have an RSM already fitted........how do I then use it to bypass the limiter? My instructions are in Japanese!

[Nick VR4]

you might be better getting one of these

SLD INSERT INTO post VALUES (Speed Limit Defencer)

http://www.g-force-motorsport.co.uk/HKS/Hkssld

The HKS SLD has been designed to remove the speed restriction on cars made for the Japanese market. Currently, all cars produced in Japan for their market are restricted to 180 kmh INSERT INTO post VALUES (approx. 112mph).
Price is £95

This is done from within the ECU but HKS have managed to produce a small module that connects externally into the original ECU wires, making installation relatively straightfoward, enabling the vehicle to reach it's original top speed.

[zedy1]

wait til we link up at santa pod.. then ill hav a look at it

[enigma]

I cant make the Pod this time.........I am on a course :mad:

112 mph is unlikely to be a problem as I seem to be driving everywhere at 80-90 to prevent the fuel needle bending violently!

[Brind]

Zedy, I thought your Apexi was also for upping turbo boost too??? :Ponder:

[zedy1]

no thats a rev/speed meter in mph and not kph looking into turbo boost controller but im trying to find the best locations

[enigma]

When my APEXi boost controller arrives it will be replacing the clock! The RSM is in the sunglasses holder...........see Here (http://www.clubvr4.co.uk/forum/showthread.php?s=&threadid=1090)

[Tedlogan]

Originally posted by Nick VR4
you might be better getting one of these

The HKS SLD has been designed to remove the speed restriction on cars made for the Japanese market. Currently, all cars produced in Japan for their market are restricted to 180 kmh INSERT INTO post VALUES (approx. 112mph).
Price is £95

This is done from within the ECU but HKS have managed to produce a small module that connects externally into the original ECU wires, making installation relatively straightfoward, enabling the vehicle to reach it's original top speed.
I have found what i thought was a well priced delimiter at http://www.funkyproduct.co.uk. The ad states "All Japanese Vehicles are limited to 112MPH INSERT INTO post VALUES (180KMH). This product enables your vehicle to be de-restricted to the full extent of its capabilities. Fits all Mitsubishi and Honda cars. You will need to wire this into your ECU on the speed sensor circuit. Check with an auto electrician if you do not know which one this is." It is priced @ £52 + postage. Anyone ever fitted something like this?

[ROMESH]

Wow, you guys are doing ok, mines a Jap import and is limited at 190kph. Any ideas on how the limiter can be removed without having to chip it? Really dont want to do this as my car also has to double as a company vehicle / delivery vehicle.

[zedy1]

apexi rev/speed meter should do it

[wirdy]

Got mine from:
http://www.protech-uk.co.uk/index.htm
Does exactly as it says on the tin!

Fitted easily and sits neatly on top of the ECU with a bit of velcro.

Have spoken to these guys on the phone and they know their onions, the INSERT INTO post VALUES (KM1) delimiter even came with an A4 page of hand written instructions specific for the VR4.
Recommended.

[stonegr]

Originally posted by bigdaveakers
I have an RSM already fitted........how do I then use it to bypass the limiter? My instructions are in Japanese!

You will find instruction in english here: http://www.apexi-usa.com/documentation.asp
...also i bypass the limiter when i set SLC to 180 km/ph
You can find SLC option to: 3. etc --> 1. Output set --> SLC

P.S. It's importand to conect your RSM with the right conection diagram.
My RSM is conected as the second conection diagram shows.

I hope that helps you :GL:

P.S2. Sorry about my english. Do you understand my instructions.:Ponder: