-= Ultimate Emanage Thread =-

[valmes]

Originally Posted by Elina75

Using the "RPM signal" as rpm signal type it's stable, but launch control is not working ok. With crank angle signal it's unstable, but launch control works...

I wonder why you keep referring to "Crank angle" signal type for RPM pickup, as the only option that makes "Launch control" work correctly?

I am using "Ignition signal" for RPM and "Launch control" works perfectly, although Hz/rpms in logs do not look linear too... as opposed to when I just use "RPM/tacho signal"…

Btw, what did you set your JP15 to?

[Elina75]

Originally Posted by BlackStealth

I'm still at v1.14 and I installed v2.00 on my desktop computer to browse around in the software.


My rpm signal is running perfectly for me. Did your problems start with v2.00 firmware? Launch control has been quirky since day one if you use the rpm_signal for rpms.

Nope, had the problem with the v1.14, and was hoping it was fixed in v2.00 but it's not. I think it's a well known bug (the crank angle rpm signal jumping around) and was told it has been reported to Greddy many times month ago.

I have no problems with rpm's using the rpm signal, but then there's this another bug in the launch control, that it doens't work if rpm's are from rpm signal. At least was with v1.14, haven't tested that with v2.00 yet.

Hmm, thinking about it, I did once try it with v2.00, went wot while in neutral, just to test the rev limiter, and later from the log noticed that even the launch limit was set to 5500, it revved 7200 (I have stock ecu, rev limit). So it might be that the launch rev limiter is not working at all now!! Forgot that, when saw all those other bugs. Have to test that a bit more tomorrow.

All those bugs I've noticed are also reported in other forums and e-manage mailing lists, it really seems like they have put out a very bad release.

[Elina75]

Originally Posted by valmes

I wonder why you keep referring to "Crank angle" signal type for RPM pickup, as the only option that makes "Launch control" work correctly?

I am using "Ignition signal" for RPM and "Launch control" works perfectly, although Hz/rpms in logs do not look linear too... as opposed to when I just use "RPM/tacho signal"…

Btw, what did you set your JP15 to?

I don't think I've said it's the only option. I tested the "ignition signal" as well, and it worked exactly like with "crank angle signal". Launch control was ok, but rpm's (and other parameters) jumping way too much to make proper rpm-based tuning possible.

[Elina75]

Originally Posted by Elina75

Hmm, thinking about it, I did once try it with v2.00, went wot while in neutral, just to test the rev limiter, and later from the log noticed that even the launch limit was set to 5500, it revved 7200 (I have stock ecu, rev limit). So it might be that the launch rev limiter is not working at all now!! Forgot that, when saw all those other bugs. Have to test that a bit more tomorrow.

Ok, did some tests today and the results are very interesting...

First of all, after upgrading from v1.14 to v2.00 you shouldn't use your old saved configuration files. But built new ones from the scratch or d/l from emu and go from there. If I used my old files, at least the launch rev limiter (rpm signal) didn't work at all. No matter where the limit was set, it would rev to 7300 which is the stock limiter. Luckily that still works

After ditching the old files, I downloaded the settings from emu, and made the changes there and saved that file. So now I have a new base setup which works with v2.00 software & firmware.

Ok, here are the graphs:

http://www.qnet.fi/jupakkanen/28speed.jpg

http://www.qnet.fi/jupakkanen/28rpm.jpg

http://www.qnet.fi/jupakkanen/28ignition.jpg

http://www.qnet.fi/jupakkanen/28crank.jpg

The first graph just shows the speed logging. I'm going through 2nd to 3rd to 4th, and the final speed is 22 km/h (13 mph) When it should be 220 km/h (136 mph), or actually 240 km/h (150 mph) because my 10% adjustment is not necessary with the slightly larger winter tires.

Then the launch control. The rpm signal (28rpm.jpg) looks beautifull. But there's a big pause now and then. Have to dig more deeply into that, if it's just a tune issue. Anyway, the airflow & injector duty cycles drop quickly, which is not good. Boost below 2.0 psi.

With ignition signal, the signal is edged, but the car feels really powerfull (boost around 2.5 psi all the time) and the a/f is good. Airflow and idc steady.

With crank angle signal the boost was even better, also a/f in more powerfull range, but rpm's jumping around like horny bunnies. Also, the average rpm range was 300-400 higher that with rpm signal or ignition signal (4300 vs. 4700). Airflow and idc steady.

Emu launch control was set to 4000 rpm in all examples.

This test was only about revving the engine stationary (except the speed logging test), I'll try to test the actual launch tomorrow. Anyway it seems that both ignition signal and crank angle signal work better than rpm signal (for rpm signal type), and the ignition signal is much more stable now, than crank angle signal.

Also, the ignition bug is clearly shown, one time it shows ok numbers, suddenly it goes to -90, -120 or so. And then come back again. Never did this with v1.14.

[Gray Haze]

I guess it isn't 100% common knowledge that the RPM Tacho signal is generated by the PTU, when the EMU starts dropping cyls to 2step, the PTU stops generating tach signals, cause it never recived the pulse. Just an FYI.

[bfarnam]

Originally Posted by Gray Haze

I guess it isn't 100% common knowledge that the RPM Tacho signal is generated by the PTU, when the EMU starts dropping cyls to 2step, the PTU stops generating tach signals, cause it never recived the pulse. Just an FYI.

Ohhhh Snap . . . OK OK so the PTU (?) generates the Tach signal and when the EMU intercepts these and modifies these the PTU stops putting out the tach signal? So if you want to see TRUE engine speed you need to monitor the crank angle sensor as this will only change with engine speed? This actually makes perfect sence . . .

[BlackStealth]

Devils Mentor: Keep the pressure sensor and harness. This will allow you to switch to speed density and also tuning by boost (PSI) is much more consistent than tuning by TPS.

You can still use main, ignition and injector harnesses on the ultimate as well.

[TrAb]

I got my emu all hooked up for speed density but havent tried starting the car yet, how can i tell if my IAT sensor is working ok?

[Gray Haze]

hook up your datalogger, make sure your not seeing a really low or high number

[TrAb]

What would be high, and what would it be under on the datalogger?