Turbo rpm, wich input port?

[ChristianK]

Hello,

I won't to build a high-speed input for turbo revs.

Which port could I use? Does the flexfuel port work? Or work any any at ports, that I could use at the "shaft speed sensor" ?

How many KHz work? 165.000rpm with 14 wings are around 38.5khz. Does this work?

Thanks for your input!

[jsmcortina]

Use PT4.

Most aftermarket turbo speed sensors use some kind of pulse divider to reduce their output frequency. Try it as-is though, use the "high speed" option.

James

[ChristianK]

Its a borg warner sensor. I don't know about any divider.

At this time, I use Pt4 for speedo out. Wich port works for this also?

Christian

http://www.turbozentrum.de/turbos-co/bo ... r/a-28273/

[jsmcortina]

For that high speed you want a direct digital input with no capacitor smoothing. PT4 is the only available one unless you want to customise the mainboard to access JS10.

James

[ChristianK]

I've understood. But wich one works alternatively for my speedo out?
Pt4 works well for the speedo.
I've these not used Pins:

-nitrous 2
-vvt
-flexfuel
And there are three unused spark outputs.

The speedo came from a Passat/Dasher 35i with 2.0 16V ABF.

Any ideas?

Thanks!

Christian

[jsmcortina]

One of the spark pins should work fine for the speedo output if PT4 is working now.

James

[ChristianK]

Ok, thanks a lot. I will be testing this configuration.

I have another probably interesting problem. But I think I try to start a new post in the next few days...

When will the next source-code appear? There is one special issue...