I wanted to start modding my car (APR Chip, R1 DVs) in the next month or so. Here is a log of a 3rd gear WOT run from ~2000RPM to 6440RPM. Wanted to get some thoughts about the boost measurements before I go ahead. I've seen some varying posts here and elsewhere about what the boost should spike and hold at through the range.

I've subtracted 1000mbar (about at sea level) and converted to PSI

 

Nice to see stock #'s. Can you please do the same (3rdWOT)but log block 023. I want to see your FATS and CF. Thanks

 

I like what you're doing and would like to point out that in the graph your RPM numbers are out of wack (not in ascending order).

 

DraxeofDclan - I'll try to gather fats/cf this weekend

 

DraxeofDclan - I'll try to gather fats/cf this weekend and post

KaijuSenso - Thanks for the words.. also, noot sure what you meant by rpms not in ascending order - RPM going from 2K to ~6K on the x axis and PSI going from 0 to 9 on the Y axis.

Anyone have thoughts about the graph looking in order in terms of what you would expect from a stock 02 b5 s4?

 

I was looking at the second large increase in boost and looked down to see the RPMs when I noticed they were off. Here is the list I see in order via your picture

2160
2640
2800
3000
2320
2560
2760
3040

and the rest after that are fine.

 

I forgot to trim the first part of it off after i got the data together, i had to press the button as i was pulling off the side of the road so i might have caught another gear in the beginning of the run

 

Here is the data I recorded

Time mph
18.82 58.42
19.14 60.00
20.08 64.64
21.27 70.85
22.62 77.07
23.87 82.66
25.02 87.01
25.85 90.00
26.23 91.36

FATS(est) - 6.71

The reason I bolded 60 and 90 and I say estimate is because the logging intervals weren't short enough to measure the with my stock beast so I calculated those numbers based on numbers before and after them.

I calculated them using a straight proportion taking time 18.82 and 20.08 to figure out the time for 60. I did the same to calculate 90 (used 25.02 and 26.23)

I wasn't sure if there was a way to increase the logging rate or if my calculation was the right way to get on top of exact numbers.

I'll come back with the CF#s in a bit.

 

Here is the CF data from 023, looks like it is only cyl 3 and 4?

Ign ang corr 3 Ign ang corr 4
TIME Engine 0-10deg 0-10deg
sec RPM CF 3 CF 4
8.32 2360 0 0
9.57 2600 0 0
10.74 3000 0 0
11.97 3520 0 0
13.19 4040 0 0
14.38 3160 0 0
15.59 3240 0 0
16.8 3480 0 0
18.01 3800 0 0
19.23 4240 0 0
20.49 4680 0 0
21.7 5080 0 0
23.04 5520 3 0
24.23 5840 3 0
25.48 6120 2.3 0
26.72 6440 2.3 0

 

Excellent sir, yes thank you. Although I could have learned alot more seeing the raw data file. How many times did you log to conclude your FATS are 6.7? OCT? TEMP? SPARE? Im new to all this myself. Now trying to tweak with uni/lemmi. The reason I said block 023 was because I wanted to see BOTH your rpm and CFs with a time stamp(same run). I can only use free-ware vagcom(cheap ***) and thats the block Im using to determine issues Im having. In short my FATS are ranging from 5.1-6.2. After MANY logs I noticed a correlation in my FATS : CFs. When my times where in the low 5s my CFs were 4s, and in the 6s CFs 9s. Now I dont have a CEL but my o2s are throwing codes off/on. I hope this is why my FATS are so slow.

Having said that, I see your CFS are 0s. Add some timing and fuel to get them up at least to 4s. Then watch what happens to your FATS.