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I got this log in before I blew the motor, I wish I had of logged some other things.
O-well!
I'm still trying to make a timming map with what info I got, in PLviewer in the windows data at the start of the log where I'm at around 1000rpm it says timing -.6 deg but in the leading timming map, which is stock timing does not go down to -.6 so where did these numbers come from?
also what should I have logged to give me the best info on creating a timing map?
and I'll post my TPS log it seems wierd
The car was running lean on the top 12.9AF and I took out the front rotor, didn't even hear the detnation but felt the timing retarding under knock, just hope I didn't take out the turbo.
If someone could check out the log and maybe see somthing I don't that may help,
thanks for any help.
now it won't let me post the LOG I'll try to get it on here.
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84 gsl-se turbo s4 block,rtek 2.0,255lph fuel pump,surge tank,Bar and plate front mount IC,lightened flywheel,3 puck clutch,s5 super H TO4B upgrade,RB DP, MP and under axel 3" exhaust,t2 tranny,ect........
Not sure why you are so worried about timing since it seems the lack of fuel is the bigger problem. The stock timing maps aren't that bad. No need to reinvent the wheel. Just pull a few degrees out up top. But get your fuel right first! All the timing tuning in the world isn't going to save a motor running lean.
I was worried about timing because, before I had the rtek 2 I had a SAFC and the rtek 1.5 and I had plenty of fuel for the boost I was running, which boost was creeping to 16 psi but my AF was still low 11's, so I thought I would need to do something with timing because the rtek 1.5 has the timing retard but the rtek 2 you have to manualy change the timing and I'm not sure where to retard the timing. That is why I was concerned about timing!!!!
I can't comment on the stock timing maps being good or bad from what I do know stock timing is not the best for safety and that is what I was looking for!!!
My timing at full out in third gear was something like 36 degs this to me seems like to much as I have looked through alot of haltech maps and not one has the timing under full boost and high RPM's anywhere close to 36 deg's.
I'm not saying the rtek has anything to do with me blowing my motor, but maybe you can tell me what I need to log next time so I can get a good idea for a timing map?
and yes I will be getting the fuel figured out first!!
thanks
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84 gsl-se turbo s4 block,rtek 2.0,255lph fuel pump,surge tank,Bar and plate front mount IC,lightened flywheel,3 puck clutch,s5 super H TO4B upgrade,RB DP, MP and under axel 3" exhaust,t2 tranny,ect........
I didn't notice that but I'll take a closer look, thanks.
what is bugging me is that my old setup, being SAFC and rtek 1.5 with everything the same I had enough fuel for 16psi and now with the rtek 2.0 I don't have enough fuel??
Whats up between 8 and 11 seconds? Is that wheel spin in first?
Henrik noticed your TPS is not reading full scale. This would keep flood clear from working. You should make sure it's properly adjusted as per the FSM.
The spikes could indicate a dirty or bad TPS. Instead of mashing it, slowly press it to the floor and slowly release it. The log should be a smooth "hill". If there are spikes in it, get a new sensor.
You moved from the 1.5 (which doesnt compensate for larger injectors) to the 2.0 set for 720/720 which leans the mixture about 25% to compensate for the larger injectors. So, not even accounting for the AFC correction, you went from +45% more fuel (800cc + v1.5) over stock to 12% more fuel over stock (800cc + v2.0 seto for 720).
Or you can think of it this way. Stock (with the 1.5) you had 800cc with the ECU expecting 550, so you had an additional 250cc ( 800-550) over stock. With the 2.0 set for 720, you were only 80cc over stock (800-720). Thats a pretty big difference.
No the improperly set TPS has little to do with fueling (to a point).
From what I understood was when set to 720/720 the ECU would now just lower the duty cycle, allowing the ECU to add more fuel to keep the AF around 11 to 1, now if AF got higher I could then add more fuel in the map up to 15%??
Yes, sorta. Set to 720s, the ECU will remove roughly 25% from the calculated injector duty cycle to compensate for the 25% additional fuel being squirted by the 720s. This will maintain near stock AFRs mathematically which may or may not be suitable for the boost you are running. The compensation will be carried up through the airflow range, but the ECU is not closed loop at WOT, so there is no way to say it will maintain a good AFR for all boost/airflow conditions. Every car is different, so the need for a tuning and monitoring with a wideband is still there.
As described previously, your previous setup was running much more fuel because no injector compensation was being done. If your AFRs were good with that setup them moving to the 2.0 and configuring it the way you had it would definitely make it run lean.
If you aren't understanding this, please let me know and I'll try to explain it better.
can anyone with the rtek 2 post up the stock S4 timing tables? i plan on using MegaSquirt n Spark - Extra on my 88 TII. figured i could use a real baseline timing table to tune off of rather than just guessing or using a table from another MegaSquirt user who probably made up numbers.
The secondary flag would not "cause" hesitation, but it might provide clues as to why its hesitating. The Secondary flag is just that, it indicates the secondaries are on. When the secondary flag goes high, the IPW will drop by about one half (assuming pri/sec injectors are the same) so the AFR stays the same, but with 4 injectors injecting.
What you see isn't a problem, it's what is causing the secondaries to turn on and off. For this I would look at the TPS. You didn't log TPS, but I would be curious to see TPS, RPM, IPW, and sec flag.
As for the timing tables, get an Rtek. There is no way to extract them without manually copying the 700+ values.
That looks hard to read. I am using a haltech so I don't know anything about this. Just interested in converting maybe to stock or just selling the car cause of Emissions so I thought I would take a look at the rtek. Reason why I say its hard to read is on that graph how do you tell what boost you are in to adjust the timing. Can you adjust while driving or all adjustments are made offline. Sort of looks like stabbing in the dark? Overall looks like a cool system.
yes, that's exactly what i was talking about. only the Table version and not the map version. all i have in MS is a MAP vs RPM table. and i think a timing split table or something. haven't really dug into the guts of it yet. i'm still learning the system.
On that particular view, the dot indicates the cell your in as well as the labels at the bottom. The timing maps in the stock ECU are Load vs RPM, not boost vs RPM.
Check the screenshots on our site for other views.
There is no way to extract them without manually copying the 700+ values.
Linear Mode
