1st Log

[03AudiA41.8T]

How does this log look? I was getting underboost, installed a n75 race, I know i might get limp mode, but havent yet. I only logged my boost levels, and it still looks like it is underboosting in lower RPM's. Is there any other blocks i can log to help me? I am not getting the underboost code any more either. TIA everone.

,Group A:,'115,,,,Group B:, Not Running,,,,Group C:, Not Running
,,RPM,Load,Absolute Pres.,Absolute Pres.,,,,,,,,,,
,TIME,,,,,TIME,,,,,TIME,,,,
MARKER,STAMP, /min,%, mbar, mbar,STAMP,,,,,STAMP,,,,
,0.00,1640,48.1,930.0,950.0,,,,,,,,,,
,0.24,1680,51.1,930.0,960.0,,,,,,,,,,
,0.48,1800,53.4,930.0,960.0,,,,,,,,,,
,0.72,1880,57.9,1100.0,970.0,,,,,,,,,,
,0.96,2040,63.9,1300.0,970.0,,,,,,,,,,
,1.20,2160,70.7,1350.0,990.0,,,,,,,,,,
,1.44,2240,69.9,1420.0,1030.0,,,,,,,,,,
,1.68,2360,72.2,1410.0,1050.0,,,,,,,,,,
,1.92,2480,75.2,1560.0,1080.0,,,,,,,,,,
,2.16,2640,78.9,1590.0,1110.0,,,,,,,,,,
,2.40,2800,84.2,1590.0,1150.0,,,,,,,,,,
,2.64,3000,90.2,1550.0,1210.0,,,,,,,,,,
,2.88,3200,95.5,1560.0,1290.0,,,,,,,,,,
,3.12,3440,100.8,1560.0,1370.0,,,,,,,,,,
,3.36,3640,106.0,1580.0,1450.0,,,,,,,,,,
,3.60,3920,112.0,1580.0,1530.0,,,,,,,,,,
,3.84,4160,117.3,1580.0,1600.0,,,,,,,,,,
,4.08,4440,123.3,1410.0,1650.0,,,,,,,,,,
,4.32,4720,118.0,1220.0,1560.0,,,,,,,,,,
,4.56,4960,103.0,1200.0,1370.0,,,,,,,,,,
,4.80,5080,89.5,950.0,1300.0,,,,,,,,,,
,5.04,4640,78.2,950.0,1220.0,,,,,,,,,,
,5.28,3440,72.9,1030.0,1220.0,,,,,,,,,,
,5.52,3200,79.7,1360.0,1130.0,,,,,,,,,,
,5.76,3280,88.0,1380.0,1200.0,,,,,,,,,,
,6.00,3200,94.0,1400.0,1290.0,,,,,,,,,,
,6.24,3200,98.5,1500.0,1340.0,,,,,,,,,,
,6.48,3200,103.8,1560.0,1410.0,,,,,,,,,,
,6.70,3240,107.5,1560.0,1450.0,,,,,,,,,,
,6.94,3320,109.0,1560.0,1500.0,,,,,,,,,,
,7.18,3400,111.3,1560.0,1520.0,,,,,,,,,,
,7.42,3480,113.5,1570.0,1560.0,,,,,,,,,,
,7.66,3560,115.0,1570.0,1600.0,,,,,,,,,,
,7.90,3680,118.0,1570.0,1610.0,,,,,,,,,,
,8.14,3760,120.3,1570.0,1650.0,,,,,,,,,,
,8.38,3880,120.3,1570.0,1670.0,,,,,,,,,,
,8.64,4000,123.3,1570.0,1680.0,,,,,,,,,,
,8.88,4080,123.3,1580.0,1670.0,,,,,,,,,,
,9.12,4200,123.3,1570.0,1670.0,,,,,,,,,,
,9.36,4280,121.8,1570.0,1620.0,,,,,,,,,,
,9.60,4400,119.5,1570.0,1610.0,,,,,,,,,,
,9.84,4520,119.5,1550.0,1600.0,,,,,,,,,,
,10.08,4600,119.5,1550.0,1580.0,,,,,,,,,,
,10.32,4680,118.8,1550.0,1550.0,,,,,,,,,,
,10.56,4800,117.3,1550.0,1540.0,,,,,,,,,,
,10.80,4880,118.0,1550.0,1530.0,,,,,,,,,,
,11.04,4960,116.5,1560.0,1530.0,,,,,,,,,,
,11.29,5080,117.3,1510.0,1530.0,,,,,,,,,,
,11.53,4920,121.1,1520.0,1560.0,,,,,,,,,,
,11.77,4280,125.6,1540.0,1680.0,,,,,,,,,,
,12.01,3840,124.1,1570.0,1680.0,,,,,,,,,,
,12.25,3800,116.5,1570.0,1600.0,,,,,,,,,,
,12.49,3840,113.5,1560.0,1560.0,,,,,,,,,,
,12.73,3840,112.0,1550.0,1520.0,,,,,,,,,,
,12.97,3880,111.3,1550.0,1530.0,,,,,,,,,,
,13.21,3880,111.3,1550.0,1530.0,,,,,,,,,,
,13.45,3920,111.3,1540.0,1540.0,,,,,,,,,,
,13.69,3960,112.0,1540.0,1550.0,,,,,,,,,,
,13.93,4000,112.0,1540.0,1560.0,,,,,,,,,,
,14.17,4040,112.0,1540.0,1550.0,,,,,,,,,,
,14.41,4080,112.8,1550.0,1550.0,,,,,,,,,,
,14.67,4120,112.0,1550.0,1550.0,,,,,,,,,,
,14.91,4160,112.0,1540.0,1550.0,,,,,,,,,,
,15.15,4200,112.8,1540.0,1550.0,,,,,,,,,,
,15.39,4240,112.8,1540.0,1540.0,,,,,,,,,,
,15.63,4280,113.5,1550.0,1560.0,,,,,,,,,,
,15.87,4360,112.8,1550.0,1540.0,,,,,,,,,,
,16.11,4400,113.5,1540.0,1540.0,,,,,,,,,,
,16.35,4440,113.5,1540.0,1540.0,,,,,,,,,,
,16.59,4480,113.5,1550.0,1530.0,,,,,,,,,,
,16.83,4520,113.5,1550.0,1530.0,,,,,,,,,,
,17.07,4520,109.8,930.0,1420.0,,,,,,,,,,
,17.31,4560,30.8,930.0,1270.0,,,,,,,,,,
,17.55,4560,15.0,930.0,1080.0,,,,,,,,,,
,17.79,4520,13.5,930.0,1010.0,,,,,,,,,,

[03AudiA41.8T]

I just did a mbar to psi conv. also, and it looks like i might be chipped? If i am right it converted to 23 psi. Would that be stage 1+?

[Gooner1886]

off topic, but i was just in altoona to play st francis pa... weird people around those parts. haha

[lave3k]

Not chipped, sorry but the good news is that your car can be way more fun to drive with a simple chip.
The sensor reads absolute pressure so you need to subtract ambient pressure from it, in your case looks like about 930mbar for ambient. What gear was that log in? looks like 1st maybe 2nd. If you log in third you'll get more predictable spool which will make things easier to diagnose, it looks like you didn't hit the requested boost until 4krpm at the beginning of the file.

Try a pull in 3rd from 2krpm, that will give a nice response and it will be clear if things a functioning properly.

[03AudiA41.8T]

off topic, but i was just in altoona to play st francis pa... weird people around those parts. haha

Yes, very weird, if you ever need a self esteem boost just make a trip to a wal-mart in altoona. I actually live about 1 mile from SFU. What spory you play?

[03AudiA41.8T]

Not chipped, sorry but the good news is that your car can be way more fun to drive with a simple chip.
The sensor reads absolute pressure so you need to subtract ambient pressure from it, in your case looks like about 930mbar for ambient. What gear was that log in? looks like 1st maybe 2nd. If you log in third you'll get more predictable spool which will make things easier to diagnose, it looks like you didn't hit the requested boost until 4krpm at the beginning of the file.

Try a pull in 3rd from 2krpm, that will give a nice response and it will be clear if things a functioning properly.

That pull was from 3rd gear. Also good news about not being chipped bc my injectors will be here tom, and also hopefully getting chipped as well now that i know iam not. Do you have an idea why i am not hitting req. boost untill 4k? Is this normal?

[Gooner1886]

soccer, they actually have a pretty good team at SF.. alot of foreign guys

[lave3k]

It's harder for the engine to hit the request in 1st gear at wide open throttle. In third gear you should be pretty close anywhere from 2.5k on.

Looking at your log it seems more like you went 1st gear (0-4.8seconds), 2nd gear (5-11'ish seconds), and then shifted into 3rd. If the beginning of that file is really from 3rd gear then you would have gone from 1600-5000rpm in third in less than 5 seconds which would make your car one of the most powerful a4's on the planet.

If you do a pull in 3rd gear from 2krpm then in the log it is easy to see the boost come on and it can be fairly obvious if you have any leaks/issues.
It's definitely a good idea to go over your hoses and do a boost leak check before putting in the big injectors and 1+ software as well.

[03AudiA41.8T]

Here are 3rd gear pulls

Tuesday 28 September 2010 07:20:25 PM
8E0 909 518 AF 1.8L R4/5VT G 0003

Group A: 115
RPM Load Absolute Pres. Absolute Pres.
TIME
MARKER STAMP /min % mbar mbar
0.23 2240 14.3 930 930
0.47 2240 13.5 930 930
0.71 2240 13.5 930 930
0.95 2240 13.5 930 930
1.19 2240 13.5 930 930
1.43 2240 13.5 930 930
1.67 2240 13.5 930 930
1.91 2240 13.5 930 930
2.15 2280 13.5 930 930
2.39 2320 13.5 930 930
2.63 2280 16.5 930 930
2.87 2320 13.5 930 930
3.11 2320 13.5 930 930
3.35 2320 13.5 930 920
3.59 2320 13.5 930 920
3.83 2320 13.5 930 920
4.07 2320 13.5 930 920
4.31 2320 13.5 930 920
4.55 2320 13.5 930 920
4.79 2320 30.1 930 920
5.03 2440 58.6 1680 900
5.27 2440 64.7 1670 950
5.51 2440 68.4 1680 1000
5.75 2480 72.2 1660 1040
5.99 2520 75.2 1650 1080
6.23 2560 78.2 1640 1120
6.47 2560 82.7 1640 1150
6.71 2640 85 1630 1180
6.95 2680 88 1610 1210
7.19 2720 91 1600 1240
7.43 2760 93.2 1590 1270
7.67 2800 95.5 1570 1300
7.91 2840 98.5 1570 1320
8.15 2880 100 1570 1360
8.39 2960 103 1550 1380
8.63 3040 104.5 1550 1420
8.87 3080 108.3 1550 1460
9.11 3160 111.3 1560 1490
9.35 3200 112.8 1560 1530
9.59 3240 115.8 1560 1560
9.83 3320 118 1560 1590
10.07 3360 120.3 1570 1610
10.31 3400 123.3 1570 1650
10.55 3480 124.1 1580 1660
10.79 3520 124.1 1580 1680
11.03 3560 123.3 1570 1680
11.27 3640 123.3 1580 1670
11.51 3680 122.6 1580 1650
11.75 3720 123.3 1580 1660
11.99 3760 121.8 1570 1660
12.23 3840 121.8 1570 1650
12.47 3880 120.3 1560 1630
12.71 3920 119.5 1560 1620
12.96 3960 118.8 1560 1600
13.19 4040 118 1560 1600
13.43 4080 117.3 1560 1590
13.67 4120 116.5 1560 1570
13.91 4200 115.8 1550 1570
14.15 4240 115.8 1550 1550
14.39 4280 115 1550 1550
14.63 4320 115.8 1550 1540
14.87 4400 115.8 1550 1530
15.11 4440 115.8 1550 1530
15.35 4480 116.5 1550 1540
15.59 4520 117.3 1540 1530
15.83 4560 116.5 1540 1520
16.07 4640 118 1540 1510
16.31 4680 118 1540 1540
16.55 4720 117.3 1540 1530
16.79 4800 118.8 1540 1520
17.03 4840 119.5 1540 1530
17.27 4880 120.3 1540 1520
17.51 4920 119.5 1540 1520
17.75 4960 120.3 1550 1530
17.99 5000 119.5 930 1490
18.23 4960 27.1 930 1300
18.47 4960 13.5 930 1090
18.71 4880 13.5 930 1020
18.95 4800 13.5 930 990
19.19 4720 13.5 930 970
19.43 4600 13.5 930 960
19.67 4520 12.8 930 960
19.91 4440 13.5 930 960
20.15 4320 13.5 930 960
343.5 2360 13.5 930 930
343.74 2360 13.5 930 930
343.98 2360 23.3 930 920
344.22 2480 58.6 1700 900
344.46 2520 66.9 1690 950
344.7 2520 71.4 1690 1000
344.94 2560 76.7 1670 1060
345.18 2560 80.5 1660 1120
345.42 2600 85 1640 1160
345.66 2680 89.5 1620 1210
345.91 2720 93.2 1600 1250
346.14 2760 97.7 1580 1300
346.38 2800 100.8 1570 1340
346.62 2840 103.8 1560 1370
346.86 2920 106.8 1550 1410
347.1 2960 110.5 1540 1440
347.34 3040 112 1540 1480
347.58 3080 114.3 1540 1510
347.82 3120 116.5 1540 1540
348.06 3200 119.5 1550 1560
348.3 3240 121.8 1550 1610
348.55 3280 124.1 1560 1630
348.77 3360 125.6 1570 1660
349.02 3400 127.1 1570 1660
349.25 3480 127.8 1580 1670
349.49 3520 127.8 1590 1690
349.74 3600 126.3 1580 1690
349.97 3640 127.1 1570 1680
350.21 3720 126.3 1570 1670
350.45 3760 123.3 1570 1650
350.69 3840 122.6 1570 1620
350.93 3880 120.3 1560 1620
351.17 3960 119.5 1560 1590
351.41 4000 119.5 1560 1580
351.65 4080 119.5 1550 1590
351.89 4120 117.3 1550 1560
352.13 4200 118 1540 1550
352.38 4240 117.3 1540 1550
352.62 4320 117.3 1540 1530
352.85 4360 117.3 1540 1530
353.1 4400 116.5 1540 1530
353.34 4440 118 1540 1530
353.57 4520 116.5 1540 1510
353.81 4560 117.3 1540 1510
354.05 4640 120.3 1540 1550
354.29 4680 121.8 1540 1550
354.54 4720 121.1 1540 1520
354.77 4800 119.5 1540 1520
355.01 4840 121.8 1540 1520
355.25 4880 121.8 1540 1530
355.49 4920 121.8 1540 1520
355.73 5000 121.1 1540 1530
355.97 5040 124.1 1540 1520
356.21 5080 124.8 1540 1520
356.45 5120 124.8 1530 1520
356.69 5200 123.3 1520 1500
356.93 5240 123.3 1520 1510
357.17 5280 122.6 1510 1490
357.41 5320 121.8 1510 1480
357.65 5360 121.1 1500 1480
357.89 5400 121.1 1500 1470
358.13 5440 123.3 1490 1490
358.37 5520 121.8 1500 1500
358.61 5560 120.3 1490 1500
358.85 5600 120.3 1420 1480
359.09 5640 119.5 1410 1460
359.34 5680 117.3 980 1420
Thanks to everyone. It looks like it is still building boost slowly. I know i dont have any boost leaks, I have been doing boost leak tests just about weekly.

[03AudiA41.8T]

Anyone?

[lave3k]

"I was getting underboost, installed a n75 race, I know i might get limp mode, but havent yet. I only logged my boost levels, and it still looks like it is underboosting in lower RPM's."

This is a graph of my boost request and response in 3rd when the car was stock, and yours below it for comparison.
https://docs.google.com/leaf?id=0B2T...thkey=CLDY-uoC

I would have expected it to jump up and hit the boost request a little quicker, but its hard to compare the two pulls as they don't go WOT at the same rpms.
Since you were getting an under boost code before putting in the new N75 did you check thoroughly for boost leaks?
You can definitely see the N75 race effect and the potential to throw an over boost code, I'm not sure if you'll get more or less over shoot with a 1+ tune.

[03AudiA41.8T]

Thanks for the graph mine doesn't actually look to bad. I think inclines of the compared graphs look similar. I am a TIP so that might even have a factor in it. Also i am looking into a HFC i think that it would really help spool the turbo alot quicker. I know that i do now have any boost leaks as i do a test about every other week(I am anal I know).