Originally Posted by
MopàrBCN
Hi,
Today I went to a circuit in my area and gave it a go. Also I went to a chip tuner, who is in my local club and we put the car on a dyno.
First of all, your code and calibration is awsome. I think (this is not my opinion but the opinion of the tuner) this code in a T1 car rocks!
However, you are right, there are things to optimize for a T2 car.
But before I go into this, let's see where it is awsome even for a T2 car:
This cal in high boost mode and Staging function enabled is Top Notch!!! So anyone looking for a quick option to get good results in the 1/4 mile, your cal is the business even for a T2 car. The antilag works the business, the staging limiter works to the point and the fueling is perfect (at least for my car)!!!
Now, where are the drawbacks for a T2 car:
Those come into play in Low Boost mode and in both modes when driving normally, i.e. part throttle cruising, city traffic etc....
1.: You are absolutely right, with the wastegate funcionality. This is functioning like the lottery with what I did to it. (NOTE, I DID NOT USE HIS CALIBRATION BUT CHANGED HIS DUTYCYCLEMAPS TO WHAT I FELT WERE T2 VALUES). So in lowboost, using those settings, the cal is not as recomendable for a T2 car. You will be hitting overboost ever so often, sometimes doing nothing but accelerating a tiny bit. The only remedy for me was putting the Overboost cut out high, so that you would not notice.
Here I am absolute rooky, so yes I will try to study your code (I am IT Guy - but 0 experience with assembler) but doubt that I will be able to resolve it soon. But motivation is there!!!
PS: I have never tested the code with the Wastegatedutysettings as they come per default in this cal!
2. The idle issue does not get resolved without putting hands on it. Yes, it does get better after ca. 100 miles of driving. But the problem remains.
I will explain:
a. If you start the car (hot or cold) with no throttle pressed it idles fine (rd. 900-1000 rpm). If you leave it idling without any throttle action it stays stable. However, it idles very rich!
b. If you only tip the gas once up from then it goes up to 1500 and always stays there.
c. If you are driving and coming to a stop and leave the car in gear with the clutch depressed it idles fine (this gets better the more you drive). HOWEVER, the moment you put the car in neutral gear the idle goes up.
d. The idle between shifts gets better with time. So this is actually fine.
I won't comment on fueling in general because this is something everybody has in its own hands. The main fueling tables once set right for your car will give a constant A/F (constant meaning always within it's limits) over the hole bandwidth.
However, when on the dyno, the guy made a comment to me and asked if the cal has shift points set for automatic transmission. He said to me that he suspected this because the fueling and sparc changes at certain RPM Ranges. He promised to do me a report which once I have it I will translate it into English, and let you have it.
-This may explain why y experience this funny behavior doing rd. 55 mph at 2000 rpm
Maybe - but I am way from being qualified to comment on this - your code ignores the disabling of the AutoTrans at certain points.
So, this means for me, that I will keep a chip with the cal set to highboost and with the staging limiter once I go racing, but for day to day driving I will go back to the drawing board. I hope I can help you resolving the issues, because overall this is a great thought through program. This is the first time I envy T1 ATX guys.....