Anyway, enough of my willy waving (as large as it is) -
what we should do is graph all these MAF, Requested vs Actual boost logs together to form a factual database of, erm, facts.
Group A: '002 Group B: '115 Group C: '020
RPM Load Inj. On Time Mass Flow RPM Load Absolute Pres. Absolute Pres. Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization
TIME TIME TIME
STAMP /min % ms g/s STAMP /min % mbar mbar STAMP CF CF CF CF
461.4 1960 96.2 8.16 41.92 460.8 1880 62.4 1190 1020 461.1 0 0 0 5.3
462.3 2200 124.8 10.54 60.36 461.69 2040 104.5 1740 1270 461.99 0 0 0 4.5
463.21 2520 172.2 14.62 96.22 462.61 2280 136.1 1930 1660 462.9 0 0 0 4.5
464.11 2880 182.7 15.3 101.86 463.5 2640 181.2 2190 2260 463.81 0 0 0 3
465.02 3320 191.7 15.98 123.19 464.42 3000 188.7 2230 2190 464.72 0 0 0 1.5
465.93 3680 191.7 17.34 152.69 465.32 3440 191.7 2300 2240 465.63 0 0 0 0
466.83 4080 191.7 18.36 164 466.22 3840 191.7 2360 2350 466.53 0 0 0 0
467.74 4480 191.7 18.02 178.31 467.13 4240 191.7 2380 2370 467.44 0 0 0 0
468.64 4840 191.7 18.02 189.81 468.04 4640 191.7 2350 2350 468.34 0 0 0 0
469.55 5160 191.7 17.68 200.25 468.94 4920 191.7 2320 2300 469.25 0 0 0 0
470.45 5440 191.7 17.68 211.78 469.85 5280 191.7 2290 2290 470.14 0 0 0 0
471.36 5760 191.7 17.34 209.92 470.76 5560 191.7 2260 2220 471.06 0 0 0 0
472.26 5960 191.7 17 218.08 471.66 5840 191.7 2230 2190 471.96 0 0 0 0
473.17 6200 181.2 15.64 213.64 472.57 6040 186.5 2200 2200 472.87 0 0 0 0
474.08 6400 178.2 15.3 217.72 473.47 6280 182.7 2180 2140 473.78 0 0 0 0
474.98 6600 167.7 14.62 217.22 474.38 6440 172.2 2180 2220 474.68 0 0 0 0
475.9 6760 168.4 15.64 218.94 475.28 6640 170.7 2170 2180 475.59 0 0 0 0
476.8 6880 156.4 14.96 218.53 476.2 6800 172.2 2180 2170 476.5 0 0 0 0
477.71 7000 158.6 14.96 219.39 477.09 6960 160.9 2180 2170 477.39 0 0 0 0
478.6 7160 167.7 16.32 225.08 478 7080 163.9 2190 2170 478.3 0 0 0 0
But anyway, I just wanted to post that I saw 205-209 this morning (even though it's bouncing around like a bitch - dodgy N75 I think...)
would a split in that hose meaning the maf is reading lower air flow in turn cause less fuel to be put in and me to run higher cf's as i am boost 9 timing 6 at the mo and in the 4th cf colun i see some 5's and 6's but only at about 1800rpm
Anyway i finally got off my backside and did a log. It was a bit 'finger in the air' as i couldn't remember what i had on before so stuck it on T7B7. I think i can get more out of it but it seems quite revvy at this so it might stay. Stg 2 lcr. Ignore the first few CF's, it's just cos i started the run at about 1k revs.
Code:Group A: '002 Group B: '115 Group C: '020 RPM Load Inj. On Time Mass Flow RPM Load Absolute Pres. Absolute Pres. Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization TIME TIME TIME STAMP /min % ms g/s STAMP /min % mbar mbar STAMP CF CF CF CF 461.4 1960 96.2 8.16 41.92 460.8 1880 62.4 1190 1020 461.1 0 0 0 5.3 462.3 2200 124.8 10.54 60.36 461.69 2040 104.5 1740 1270 461.99 0 0 0 4.5 463.21 2520 172.2 14.62 96.22 462.61 2280 136.1 1930 1660 462.9 0 0 0 4.5 464.11 2880 182.7 15.3 101.86 463.5 2640 181.2 2190 2260 463.81 0 0 0 3 465.02 3320 191.7 15.98 123.19 464.42 3000 188.7 2230 2190 464.72 0 0 0 1.5 465.93 3680 191.7 17.34 152.69 465.32 3440 191.7 2300 2240 465.63 0 0 0 0 466.83 4080 191.7 18.36 164 466.22 3840 191.7 2360 2350 466.53 0 0 0 0 467.74 4480 191.7 18.02 178.31 467.13 4240 191.7 2380 2370 467.44 0 0 0 0 468.64 4840 191.7 18.02 189.81 468.04 4640 191.7 2350 2350 468.34 0 0 0 0 469.55 5160 191.7 17.68 200.25 468.94 4920 191.7 2320 2300 469.25 0 0 0 0 470.45 5440 191.7 17.68 211.78 469.85 5280 191.7 2290 2290 470.14 0 0 0 0 471.36 5760 191.7 17.34 209.92 470.76 5560 191.7 2260 2220 471.06 0 0 0 0 472.26 5960 191.7 17 218.08 471.66 5840 191.7 2230 2190 471.96 0 0 0 0 473.17 6200 181.2 15.64 213.64 472.57 6040 186.5 2200 2200 472.87 0 0 0 0 474.08 6400 178.2 15.3 217.72 473.47 6280 182.7 2180 2140 473.78 0 0 0 0 474.98 6600 167.7 14.62 217.22 474.38 6440 172.2 2180 2220 474.68 0 0 0 0 475.9 6760 168.4 15.64 218.94 475.28 6640 170.7 2170 2180 475.59 0 0 0 0 476.8 6880 156.4 14.96 218.53 476.2 6800 172.2 2180 2170 476.5 0 0 0 0 477.71 7000 158.6 14.96 219.39 477.09 6960 160.9 2180 2170 477.39 0 0 0 0 478.6 7160 167.7 16.32 225.08 478 7080 163.9 2190 2170 478.3 0 0 0 0
Time Idle speed Engine load Inj. period Air mass in Time Engine Speed Engine Load Spec. Boost Actual Boost
35.76 720 17.3 2.04 2.56 36.16 720 17.3 970 970
36.56 720 18 2.38 2.78 37.06 720 18.8 970 970
37.47 1000 30.1 3.4 5.75 37.87 1240 34.6 970 970
38.27 1320 45.1 5.44 12.56 38.78 1120 55.6 970 990
39.18 1200 60.2 6.12 16.06 39.68 1520 51.9 970 1040
40.08 1800 48.1 5.44 17.33 40.48 2080 53.4 970 1050
40.9 2400 54.9 5.78 26.5 41.3 2320 15 970 1050
41.7 1920 13.5 0 3.92 42.1 1760 45.1 970 970
42.5 1840 65.4 7.48 24.75 42.9 2080 73.7 1080 1100
43.3 2360 80.5 8.5 37.97 43.71 2560 72.2 1000 1260
44.11 2760 66.9 7.14 35.22 44.51 3040 94 1380 1250
44.91 3320 100 10.54 58.44 45.31 3520 60.2 1080 1260
45.71 3800 120.3 13.6 100.42 46.13 4160 130.8 1590 1620
46.64 4640 130.1 13.26 116.75 47.12 5080 128.6 1530 1520
47.53 5400 126.3 14.28 130.25 47.93 5480 16.5 970 1390
Idle speed Engine load Inj. period Air mass
3000 18.8 1.7 16.28
3960 97 11.9 91.14
4320 121.1 12.58 98.86
4560 121.8 12.92 105.61
4760 121.8 13.26 112.03
5000 139.8 16.66 137.86
5320 139.8 17.34 142.47
5600 137.6 17.68 145.56
5880 133.8 17.34 150.19
6040 127.8 15.3 112.11
4720 107.5 14.62 120.58
4840 138.3 18.02 129.69
5000 136.8 17 130.03
5120 136.8 17 132.97
5240 137.6 17.34 135.61
5360 139.1 17.68 143.19
5480 138.3 17.68 145.11
5560 139.1 18.36 147.25
5720 137.6 18.36 150.67
5800 134.6 18.02 149.19
Idle speed Engine load Inj. period Air mass
5760 135.3 17.68 148.47
5880 133.1 17.68 149.94
6000 130.1 16.66 148.69
6120 130.8 17.68 150.67
6240 127.8 17.34 153.64
6320 126.3 17 152.89
6440 124.8 16.66 153.39