speed limiter

jonowong · Post by **jonowong** » Sat Jan 31, 2004 12:57 pm

is there anyway to remove this so you can go over 180?
how much would it cost to remove?

FTO338 · Post by **FTO338** » Sat Jan 31, 2004 8:42 pm

Apexi RSM, cost around $200-$250 for a second hand & $350-$450 for a new one.

ellusion · Post by **ellusion** » Sun Feb 01, 2004 1:57 am

How much faster could you go? And what else does the Apexi do?

ruchi · Post by **ruchi** » Sun Feb 01, 2004 8:14 am

The FTO does 180kmh quite easily and without the speed limiter, theoretically it can do 250kmh, but you'd need a VERY long road to turn that theory into reality.

You should get around 220-230kmh without any problems.

dannyboyau · Post by **dannyboyau** » Sun Feb 01, 2004 9:18 am

250 no problem

dannyboyau · Post by **dannyboyau** » Sun Feb 01, 2004 9:20 am

if you push it to the rev limiter in 5th you should be doing over 280

FTO338 · Post by **FTO338** » Sun Feb 01, 2004 11:13 am

ellusion wrote:How much faster could you go? And what else does the Apexi do?

Depends on which Apexi unit you asking, the Apexi RSM (Rev Speed Meter) as the name said, it measure Rev, Speed, & Voltage of the car, & also 0-100, 0-400. I put it at the front of the windscreen, so its kinda like a HUD, as i don't have 2 look down the speedo to see how fast i'm going or what the Rev is.

Ohh & of course it disable the speed limiter.

ruchi · Post by **ruchi** » Sun Feb 01, 2004 12:15 pm

Blaze · Post by **Blaze** » Sun Feb 01, 2004 12:30 pm

jonowong wrote:is there anyway to remove this so you can go over 180?
how much would it cost to remove?

I think if you have a VTEC YO!!!!! controller, it will be able to go over 180km/h (coz you need to unplug the MIVEC and plug this manual VTEC YO!!!!! control).
I remember there was a discussion about manual VTEC YO!!!!! control in this forum sometime ago.
Please correct me if I am wrong.

dannyboyau · Post by **dannyboyau** » Sun Feb 01, 2004 9:23 pm

actually i was refering to mine before the turbo conversion and was being conservative

when i do 100 kms ahour i am on 3000 rpm and i have had it in top gear hitting the rev limiter before and after the conversion, I do not recommend this unless you have good bit of road ( private ) be fore it took a lot longer to get there than it does now,

My maths that figures out to be capable of 300 Kms an hour when it hits the rev limiter at 9000 rpm but you get a bit of brake fade with stock rotors so make sure you got plenty of space to stop

of course this depends on the accuaracy of the gauges

but if anyone knows where to get a 300 km a hour speedo for the FTO i will test it

dannyboyau · Post by **dannyboyau** » Sun Feb 01, 2004 9:26 pm

just a suggestion

but can a few of you check and see what speed you are doing at 3000 RPM in 5th gear

then you just triple it and you should be able to see your top speed if you had no rev limiter

ruchi · Post by **ruchi** » Sun Feb 01, 2004 9:42 pm

dannyboyau · Post by **dannyboyau** » Sun Feb 01, 2004 10:06 pm

I am not basing it on gear ratios, i am basing this on personal experiance i could be wrong if me guages are wrong.

you do the math if you like
but if you are doing 100 km at 3000 rpm in 5th

then when you are doing 9000 rpm in 5th what speed are you doing

the engine is turning 3 times faster and the wheels are turning 3 times faster ?

drag will effect how quick you get there more than anything but once you are there it will take a lot less power to hold you there then it did to get you there

so if your car is capable of doing 9000 rpm on 5th which i have done on several occasions, i am talking from personal experiance, i had a suitable road and i pushed it till it hit the limiter, doing it on another occasion i melted a piston in a 6A13 i had the rev limiter set at 7500 and it got there to quickly .but i had also done this quite a few times with the 6A12 before before the conversion,

I am not figuring this out by gear ratio, i am looking at what speed i am doing at 3000 rpm and then multipling by three as my speedo only goes to 180

"If I recall correctly, as the speed of the car increases, the amount of power needed to go 1kmh faster increases expotentially inline with the drag coefficient. i.e. it doesn't take much extra power to get the car from 10kmh to 20kmh but it takes an incredible amount of extra power to take the car from 200kmh to 250kmh. Therefore to get a McLaren F1 to go 50kmh faster you would need to double its engine output. "

I am not talking about engine output i am just talking about the distance covered by a wheel when the engine turns 9000 times in one minute compared to the distance covered by a wheel when the engine turns 3000 times in one minute whilst in the same gear

Ps i do have witnesses that where trying to keep up.

dannyboyau · Post by **dannyboyau** » Sun Feb 01, 2004 10:15 pm

another point too

i see that people are saying it only does 250

but i havent seen a speedo for the FTO that goes over 180

I seen dials

i been trying to get a speedo that is rated to 300 + for quite a while and no one can supply one for the FTO

Please correct me if i am wrong and also please give me there contact details.

so i would like to know how they are coming up with there top speed.

who out there has held the pedal to the floor in 5th till the revs stop increasing

have you Ruchi

ruchi · Post by **ruchi** » Sun Feb 01, 2004 11:33 pm

TimmyD · Post by **TimmyD** » Sun Feb 01, 2004 11:35 pm

heres your speed delimiter

http://octane.nt4.com/firesport/?sectio ... ow&id=5086

ruchi · Post by **ruchi** » Sun Feb 01, 2004 11:41 pm

dannyboyau · Post by **dannyboyau** » Mon Feb 02, 2004 3:21 am

So did you take a NA FTO to 9000rpm in 5th, or was it a turbo?

obviously you cant read

As an example, here are some rough figures as to the power required at the flywheel to be able to overcome the drag, to be able to reach the specified speed:

50kmh - 5hp
100kmh - 20hp
200kmh - 115hp
300kmh - 385hp

another question what is the coefficent of drag for the FTO and what do you believe to be the top speed that it is capable off according to your calculations.

And as you asked, I have taken my car all the way to the speed limiter, but not the rev limiter, so 180kmh is as good as I can get.

obviously you havent pushed it to the rev limiter in 5th, so i guess you cant talk from experiance.

Based on it's gear ratios and with the standard wheels, the theorectial top speed at 8000rpm is 259kmh, and at 9000rpm (if you can get it that high) is 292kmh.

well thankyou for providing me with this so i was close considering i was only using the tacho from my car at 3000 rpm to estimate what speed i was doing when i hit the rev limiter.

dannyboyau · Post by **dannyboyau** » Mon Feb 02, 2004 3:23 am

OK, without getting argumentative, we are actually talking about the same thing. While 3000rpm in 5th = 100kmh, to achieve 100kmh in 4th gear your revs would have to be higher, why? because 4th gear has a higher ratio than 5th gear. So without realising it and without mentioning it, you are refering to gear ratios, and we are actually talking about the same thing.

when did i mention 4th gear

P.S I couldnt give a flying **** what you think, I know it did it before and i know what it can do now

want to race for slips

ruchi · Post by **ruchi** » Mon Feb 02, 2004 9:51 am

FTO AUSTRALIA

speed limiter

speed limiter

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