Honda S2000 Cluster Speedometer

[lndrx]

Is it possible to use revburner to drive the speedo signal?

It's not working... The maximum value I read at cluster is 12km/h. 

[Cristiano]

Is it possible to use revburner to drive the speedo signal?

It's not working... The maximum value I read at cluster is 12km/h. 

Hello.
It's hard to say because every dashboard is different and it is not guarantee everyone will work with the rev burner.

In general after market rev counters and speedometers work fine with the rev burner, but with full dashboards it's a bit different because they may use other protocols to talk to the engine computer/sensors.

[lndrx]

I got this...

"http://www.youtube.com/watch?v=odju5vwvK54

time for an update again.

So far so good until today. Found out that the integra speedometer isn't very accurate. Reason i say this is because the s2000 gives you a digital readout(very accurate). Where as for the integra, i am eyeballing the reading off my ls speedometer. So, overall still good but may not be accurate to +/-4 percent of actual reality speed. Government requires all US cars to have that close of a tolerance.

As for generating a speed readout on the s2000 cluster, this was successful. here are some spec for the s2k cluster, the following information could not be found anywhere in the internet because I tried to look for something to compare too and can't find shit.

to get mph you must supply a 12v square, 20 percent duty cycle wave to the signal input at the rate of ....

speed(MPH) S2000(hrtz) Integra(Hrtz) Ratio(s2k/integra)
0 0-100 0 0

10 500 15 33.33333333

20 940 26 36.15384615

30 1340 38 35.26315789

40 1800 48 37.5

50 2230 59 37.79661017

60 2640 70 37.71428571

70 3090 80 38.625

80 3500 91 38.46153846

90 3910 101 38.71287129

100 4310 112 38.48214286

110 4810 123 39.10569106

120 5240 134 39.10447761



I am going to need a digital speedometer for an integra in order to finish to get specs to where i would like them to be. SO DOES ANY HAVE ONE THAT I CAN BUY FOR CHEAP OR BORROW?


Look at ratios and you can clearly see why a direct wire hook up to the integra VSS signal will not work.

Enjoy guys..... The only reason why i am giving out this information(could of kept it private) is for the better of our site and to promote the world of automotive electronics. Because when it comes to engine building, information is left and right but electronics are discussed, things are too quite."

[lndrx]

My revburner don't have the 5v - 12v jumper.

What can I do?

[Cristiano]

My revburner don't have the 5v - 12v jumper.

What can I do?

Hello.
The 5v-12v has been removed in the latest revision, so ignore the instructions that says to move this jumper.

If I understand correctly, the s2000 dashboard expects a 20% duty cycle square wave, where the rev burner generates a 50% one.
I was wondering how hard it could be to use some components to get the right duty cycle from the rev burner signal.

I could investigate if you are interested.

The dashboard is beautiful anyway.

Regards
Cristiano

[lndrx]

I'm really interested. The default signal in the Rev4 is 5V or 12V?

Could it be 5V, and it's not working because of this?

I really wanna use the S2000 Cluster...

Thanks,

Leandro

[Cristiano]

I'm really interested. The default signal in the Rev4 is 5V or 12V?

Could it be 5V, and it's not working because of this?

I really wanna use the S2000 Cluster...

Thanks,

Leandro

The signal is 12v.
I will investigate how to reduce the duty cycle.

Thanks
Cristiano

[lndrx]

I'm looking for more specs about the cluster.

Found this:


http://www.youtube.com/embed/69rJYPlRloI

(THEN WE REALIZE THAT THE SPEEDOMETER GAUGE ON HONDA S2000 2006+ IS A SQUARE "NEGATIVE" SIGNAL OF AMPLITUDE OF 5 VOLTS.

S2000 TACHOMETER (RPM) SIGNAL IS 12 VOLTS "POSITVE" OF SQUARE WAVE, IT DOES NOT MATTER THE TH AND TL).

TH AND TL ARE THE DUTY CYCLE THAT THE PULSE WILL REMAIN UP AND DOWN.

The fuel gauge is a variation of "2.000 millivolts" signal of 50-100 milliampers as much low this voltage, it will show less bars light up on fuel cluster.

The wires I've checked almost all of them, almost all are normal wires with differences of some of them are positives and others negative, I will mention this wire per wire and step by step on my pdf manual once this study is finished.

NOTHING MADE THE COOLANT TEMPERATURE GAUGE MOVES UP AND DOWN, NONE SIGNAL SQUARE, SINE, TRIAGLE AND I BELIEVE ALSO THE PWM WILL NOT DO NOTHING AS WELL.

Then we conclude that definetely this coolant temp gauge works on "CANBUS OR OBD2 INTERFACE".

ONLY THE COOLANT TEMPERATURE WORKS IN THIS INTERFACE ALL THE OTHER SIGNALS ARE EASY TO CONVERT.

It is resting now the PWM SIGNAL to finish this idea, if PWM does not work at all, I will develop a "modchip" that will be installed inside the cluster like mod chip for consoles ... and then this will make the led bars up and down jumping the original "CANBUS OR OBD2" made from Japanese Engineers!!!!

I must admit Japanese People is very smart!!!!!

"DO YOU WANT A SCREW FOR THE CAR I SOLD YOU? COME TO ME!!!!!!!".

Now, lets go to next step, I will not have peace of mind until this cluster is not functional. "


Ok, my rpm works ok with revburner. Now it's about speedometer.

The first guy, uses 12V and the second, 5V.

Ok, my speedo show some numbers with actual config.

Maybe the "negative pulse" is the key?

[Cristiano]

Have you tried to send a 5V square wave 50% duty cycle to the speedometer?

[lndrx]

I only have the rev 4 board...

I can do modifications to it, but I'm limited to it.

I have soldering skills and tools, if you show me how to built a 50% dc square wave 5v generator, I can do that...

[Cristiano]

I only have the rev 4 board...

I can do modifications to it, but I'm limited to it.

I have soldering skills and tools, if you show me how to built a 50% dc square wave 5v generator, I can do that...

Hi.
The rev burner in the picture is an older version than yours but the position of the pin with the red arrow is the same.

if you connect the pin with the red arrow to the signal of the rev counter/speedometer, you will have a 5V 50% duty cycle signal.

Regards
Cristiano

[lndrx]

I'll try that today!

[lndrx]

http://www.youtube.com/watch?v=YlAe7pJqRT4

 

[Mortos]

Err... You're clicking the test button with the slider set to only half capacity, have you tried moving it to the right for more pulses?

[lndrx]

Err... You're clicking the test button with the slider set to only half capacity, have you tried moving it to the right for more pulses?

Yes, at the maximum, the value that shows at the speedo is 12km/h...