Roar Stegegjerdet
Rotrax
Having some of the same problems in our car. We have manual gearbox and k04 turbo. Can a bad cam follower make this?
Not Getting Correct Power
- Thread starter LiamS3
- Start date
grchmason
Registered User
Roar Stegegjerdet
Rotrax
- Joined
- Mar 17, 2011
- Messages
- 3,543
- Reaction score
- 881
- Points
- 113
- Location
- Lanark, Scotland
- Website
- www.brotek.co.uk
Hi Guys
Sorry for the late update.. Been busy with trying to get to the bottom of this problem lol, anyways seems after a lot of digging we may have found the issue and it looks like it has something to do with Fueling and also maybe a faulty sensor, my pre-supply fueling is quite low to what it should be making and the dyno my car is on is reading the car is making 28psi of boost but the sensor is saying 21.8psi
Will update again if I can get to the bottom of the problem!
Cheers
Sorry for the late update.. Been busy with trying to get to the bottom of this problem lol, anyways seems after a lot of digging we may have found the issue and it looks like it has something to do with Fueling and also maybe a faulty sensor, my pre-supply fueling is quite low to what it should be making and the dyno my car is on is reading the car is making 28psi of boost but the sensor is saying 21.8psi
Will update again if I can get to the bottom of the problem!
Cheers
Roar Stegegjerdet
Rotrax
Roar Stegegjerdet
Rotrax
What values to log? Mounted a new cam follower and rs4 valve since last dyno, but does not think this will make much power. Had only 290whp.
Boost pressure requested, Boost Pressure actual, N75 duty, Mass air flow, rail pressure specified, rail pressure actual, lambda specified. lambda actual. engine speed, throttle plate angle, ignition timing angle, knock correction cylinder 1
Roar Stegegjerdet
Rotrax
Hi, how can i add logs here? Have added TTE420 now, and RS4 valve. Boosts alot now also, peak 2,5 ~ bar.
Roar Stegegjerdet
Rotrax
[1] TIME STAMP [2] Group 1 - Field 0 Engine Speed /min [4] Group 2 - Field 3 Intake Air Mass g/s [6] Group 3 - Field 2 Throttle Drive - Angle Sensor 1 % [8] Group 10 - Field 3 Ignition - Timing Angle *BTDC [10] Group 20 - Field 0 Cylinder 1 Ignition - Angle Delay *KW [12] Group 31 - Field 0 Lambda Sensor - Current Value [14] Group 31 - Field 1 Lambda Sensor - Specified Value [16] Group 114 - Field 3 Wastegate (N75) - Duty Cycle % [18] Group 115 - Field 2 Boost Pressure - (specified) mbar [20] Group 115 - Field 3 Boost Pressure - (actual) mbar [22] Group 230 - Field 0 Rail Pressure - (specified) bar [24] Group 230 - Field 1 Rail Pressure - (actual) bar [25]
0.39 3680 60.06 22.0 24.8 0.0 0.97 1.00 0.0 1450.0 1760.0 124.99 124.30
49.50 2520 61.22 25.9 18.0 0.0 0.98 1.00 19.2 1450.0 1570.0 124.85 123.79
50.69 2720 69.75 26.3 18.8 0.0 0.99 1.00 20.8 1530.0 1660.0 124.99 124.79
51.86 2880 110.11 27.1 18.0 0.0 0.98 1.00 21.2 1740.0 1740.0 124.99 124.30
53.03 3320 190.08 99.2 9.8 0.0 0.89 0.88 99.6 2540.0 2820.0 124.99 126.77
54.18 3880 227.64 99.6 6.8 -6.0 0.84 0.78 99.6 2540.0 3100.0 124.99 126.60
55.37 4200 31.61 99.6 3.8 -9.0 0.83 0.74 0.0 500.0 1850.0 84.99 71.83
56.54 4000 14.56 9.0 16.5 0.0 1.02 1.00 0.0 290.0 1050.0 77.17 75.76
57.71 3800 15.94 10.2 19.5 0.0 0.94 1.00 0.0 370.0 1020.0 79.48 78.90
58.86 3600 18.97 9.0 8.3 0.0 1.13 1.00 0.0 290.0 1010.0 75.90 74.86
60.05 3440 18.03 20.0 19.5 -9.0 1.05 0.97 13.3 880.0 1430.0 102.04 106.28
61.22 3320 32.86 7.1 -4.5 0.0 1.63 1.00 0.0 280.0 1240.0 101.75 105.24
62.39 2680 87.75 16.5 14.3 -7.5 0.99 1.00 99.6 2330.0 1420.0 123.48 124.21
63.54 2840 142.47 99.6 4.5 -6.8 0.92 0.91 99.6 2540.0 2330.0 124.99 127.45
64.73 3120 174.53 99.6 3.8 -4.5 0.88 0.85 99.6 2540.0 3040.0 124.99 125.44
65.90 3480 204.81 99.6 4.5 -6.0 0.85 0.77 99.6 2550.0 3100.0 124.99 125.87
67.07 3800 120.97 99.6 4.5 -8.3 0.84 0.77 99.6 2550.0 3100.0 124.99 127.65
68.22 3680 12.19 8.6 23.3 0.0 0.95 1.00 0.0 290.0 1150.0 81.59 73.87
69.41 3520 13.36 9.4 -3.0 0.0 1.99 1.02 0.0 290.0 1020.0 76.80 76.80
70.58 3320 11.72 9.0 -3.8 0.0 1.99 1.02 0.0 290.0 1000.0 77.53 77.53
71.75 3160 11.42 8.6 -3.8 0.0 1.99 1.02 0.0 290.0 1010.0 78.18 78.18
72.90 3000 15.44 8.2 12.0 0.0 1.03 1.00 0.0 310.0 1000.0 71.11 72.59
76.41 2920 113.50 92.5 5.3 -3.8 0.84 0.85 1.6 1780.0 1800.0 124.98 126.01
78.77 3000 45.81 23.1 20.3 -2.3 1.01 1.00 0.8 1250.0 1460.0 124.99 125.62
79.94 2880 16.61 12.5 33.8 -0.8 1.00 1.00 0.0 290.0 1090.0 110.69 110.24
81.09 2720 9.92 7.8 2.3 0.0 1.99 1.02 0.0 280.0 1000.0 108.50 108.50
82.27 2560 10.39 7.5 -5.3 0.0 1.99 1.02 0.0 550.0 1000.0 104.87 105.69
83.45 2480 20.69 13.3 31.5 0.0 1.01 1.00 0.0 390.0 1020.0 93.01 91.32
84.62 2400 12.28 9.0 35.3 0.0 0.96 1.00 0.0 420.0 1000.0 84.97 84.77
85.77 2280 14.06 9.0 34.5 0.0 1.02 1.00 0.0 350.0 990.0 77.68 77.92
86.94 2200 11.08 8.6 34.5 0.0 0.95 1.00 0.0 410.0 990.0 71.64 72.85
88.13 2120 11.14 8.6 34.5 0.0 1.01 1.00 0.0 620.0 990.0 79.05 80.70
89.30 1880 20.08 16.9 27.8 0.0 1.00 1.00 0.0 320.0 1060.0 89.27 87.46
90.46 1400 6.06 4.7 -8.3 0.0 0.96 1.00 0.0 300.0 990.0 85.22 83.04
91.62 3120 7.97 5.1 34.5 0.0 0.99 1.00 0.0 270.0 980.0 79.97 81.37
92.81 2960 11.42 8.6 37.5 0.0 0.98 1.00 0.0 320.0 980.0 72.67 71.36
93.98 2760 11.64 8.6 39.0 0.0 1.00 1.00 0.0 320.0 990.0 70.01 69.79
95.13 2560 11.36 8.6 37.5 0.0 0.95 1.00 0.0 410.0 990.0 74.51 74.39
99.81 2960 44.11 34.9 23.3 0.0 0.98 0.98 99.6 2550.0 1720.0 108.15 109.26
100.98 3720 190.14 97.6 4.5 -4.5 0.89 0.72 99.6 2540.0 3060.0 124.81 129.42
102.16 5760 293.31 99.6 3.8 -6.8 0.93 0.72 99.6 290.0 2600.0 124.95 132.91
103.32 5640 33.42 39.6 12.0 -6.8 0.90 0.85 99.6 2540.0 2900.0 133.79 133.79
104.49 5240 275.03 99.6 7.5 -7.5 0.95 0.73 99.6 2540.0 2920.0 125.01 135.11
105.66 6120 297.92 99.6 5.3 -8.3 1.99 1.02 0.0 640.0 1380.0 125.00 129.49
106.85 4720 202.67 99.2 4.5 -7.5 0.87 0.73 99.6 2540.0 3060.0 123.61 94.39
108.00 5120 269.50 99.6 4.5 -9.0 0.79 0.85 0.0 280.0 1650.0 124.80 130.58
109.17 5080 9.31 11.0 33.0 0.0 0.99 1.00 0.0 290.0 1050.0 87.30 68.56
122.04 2680 9.03 3.5 -8.3 0.0 1.99 1.02 0.0 290.0 980.0 78.46 78.46
123.21 2200 8.00 7.1 -5.3 0.0 1.99 1.02 0.0 280.0 980.0 78.01 78.01
124.38 1760 5.61 5.9 -6.8 0.0 1.99 1.02 0.0 270.0 980.0 77.64 77.64
125.57 1160 5.42 4.3 -8.3 0.0 1.99 0.95 0.0 260.0 970.0 74.92 73.42
126.72 1600 7.44 3.9 21.0 0.0 0.88 0.98 0.0 260.0 960.0 71.56 71.84
127.89 1760 24.86 8.2 20.3 -9.0 0.95 1.00 0.0 710.0 970.0 73.16 74.04
129.06 3040 96.92 25.5 18.0 -6.8 1.01 1.00 99.6 2550.0 1180.0 92.55 95.14
130.25 6240 51.33 99.6 12.0 -6.0 0.85 0.86 99.6 2540.0 2920.0 103.00 126.24
131.40 4080 152.78 7.1 6.8 0.0 1.99 1.02 0.0 1960.0 1120.0 125.13 118.38
132.57 5640 290.39 99.6 8.3 -6.8 0.86 0.72 99.6 2540.0 3020.0 125.00 134.95
133.72 4480 163.94 99.6 5.3 -6.8 1.99 1.02 0.0 290.0 1400.0 125.00 116.35
134.91 5240 272.86 99.6 6.8 -6.8 0.84 0.76 99.6 2540.0 3040.0 125.00 130.80
136.08 6120 295.75 99.6 7.5 -8.3 0.93 0.73 99.6 2540.0 2900.0 125.00 125.13
145.44 3560 12.69 9.4 -3.8 0.0 1.99 1.02 0.0 290.0 1000.0 86.86 86.86
146.60 3240 11.69 8.6 -3.8 0.0 1.99 1.02 0.0 290.0 1010.0 87.78 87.78
147.76 2960 10.39 7.8 -4.5 0.0 1.99 1.02 0.0 290.0 1010.0 88.27 88.27
148.95 2000 8.11 7.1 -3.0 0.0 1.99 1.02 0.0 280.0 990.0 88.67 88.67
150.12 2960 10.53 7.8 -4.5 0.0 1.99 1.02 0.0 290.0 990.0 88.96 88.96
151.28 2640 8.92 7.1 -5.3 0.0 1.99 1.02 0.0 280.0 990.0 89.11 89.11
152.44 2400 8.14 6.7 -5.3 0.0 1.99 1.02 0.0 280.0 990.0 89.23 89.23
153.63 2200 7.64 5.9 8.3 0.0 1.99 1.02 0.0 280.0 980.0 89.29 89.29
154.80 2760 10.11 11.4 35.3 0.0 0.93 0.95 0.0 400.0 960.0 82.61 79.97
155.97 2680 27.08 16.9 28.5 0.0 0.95 1.00 0.0 650.0 990.0 97.04 97.59
157.12 2640 30.11 22.0 23.3 0.0 1.00 1.00 0.0 770.0 1080.0 99.79 100.22
158.31 2840 63.61 37.6 15.8 0.0 0.98 1.00 10.2 1220.0 1320.0 121.79 123.14
159.48 3440 181.89 99.6 8.3 0.0 0.98 0.98 99.6 2550.0 2230.0 124.99 127.32
160.65 4520 245.08 99.6 6.8 -6.0 0.89 0.73 99.6 2540.0 3020.0 124.99 132.85
161.81 5560 278.92 99.6 5.3 -6.8 0.92 0.73 99.6 2540.0 2820.0 124.99 127.53
162.99 6600 33.44 8.2 7.5 0.0 1.99 1.02 0.0 1480.0 1190.0 125.53 105.77
164.16 4560 164.08 85.5 8.3 -3.8 0.84 0.78 99.6 2540.0 3040.0 125.00 131.59
165.32 5000 258.25 99.6 5.3 -8.3 0.89 0.72 99.6 2530.0 3040.0 125.00 131.95
166.49 5440 275.92 42.7 4.5 0.0 1.99 1.02 0.0 2550.0 1100.0 113.69 92.47
167.67 4240 160.53 99.2 8.3 -3.0 0.87 0.80 99.6 2540.0 3100.0 123.79 127.71
168.84 4440 237.83 99.6 4.5 -8.3 0.75 0.80 0.0 290.0 1480.0 83.62 70.56
170.00 4360 29.81 9.8 -1.5 0.0 1.11 1.02 0.0 290.0 1030.0 78.21 78.21
171.16 3200 11.33 8.2 0.0 0.0 1.99 1.02 0.0 290.0 1020.0 75.64 75.82
0.39 3680 60.06 22.0 24.8 0.0 0.97 1.00 0.0 1450.0 1760.0 124.99 124.30
49.50 2520 61.22 25.9 18.0 0.0 0.98 1.00 19.2 1450.0 1570.0 124.85 123.79
50.69 2720 69.75 26.3 18.8 0.0 0.99 1.00 20.8 1530.0 1660.0 124.99 124.79
51.86 2880 110.11 27.1 18.0 0.0 0.98 1.00 21.2 1740.0 1740.0 124.99 124.30
53.03 3320 190.08 99.2 9.8 0.0 0.89 0.88 99.6 2540.0 2820.0 124.99 126.77
54.18 3880 227.64 99.6 6.8 -6.0 0.84 0.78 99.6 2540.0 3100.0 124.99 126.60
55.37 4200 31.61 99.6 3.8 -9.0 0.83 0.74 0.0 500.0 1850.0 84.99 71.83
56.54 4000 14.56 9.0 16.5 0.0 1.02 1.00 0.0 290.0 1050.0 77.17 75.76
57.71 3800 15.94 10.2 19.5 0.0 0.94 1.00 0.0 370.0 1020.0 79.48 78.90
58.86 3600 18.97 9.0 8.3 0.0 1.13 1.00 0.0 290.0 1010.0 75.90 74.86
60.05 3440 18.03 20.0 19.5 -9.0 1.05 0.97 13.3 880.0 1430.0 102.04 106.28
61.22 3320 32.86 7.1 -4.5 0.0 1.63 1.00 0.0 280.0 1240.0 101.75 105.24
62.39 2680 87.75 16.5 14.3 -7.5 0.99 1.00 99.6 2330.0 1420.0 123.48 124.21
63.54 2840 142.47 99.6 4.5 -6.8 0.92 0.91 99.6 2540.0 2330.0 124.99 127.45
64.73 3120 174.53 99.6 3.8 -4.5 0.88 0.85 99.6 2540.0 3040.0 124.99 125.44
65.90 3480 204.81 99.6 4.5 -6.0 0.85 0.77 99.6 2550.0 3100.0 124.99 125.87
67.07 3800 120.97 99.6 4.5 -8.3 0.84 0.77 99.6 2550.0 3100.0 124.99 127.65
68.22 3680 12.19 8.6 23.3 0.0 0.95 1.00 0.0 290.0 1150.0 81.59 73.87
69.41 3520 13.36 9.4 -3.0 0.0 1.99 1.02 0.0 290.0 1020.0 76.80 76.80
70.58 3320 11.72 9.0 -3.8 0.0 1.99 1.02 0.0 290.0 1000.0 77.53 77.53
71.75 3160 11.42 8.6 -3.8 0.0 1.99 1.02 0.0 290.0 1010.0 78.18 78.18
72.90 3000 15.44 8.2 12.0 0.0 1.03 1.00 0.0 310.0 1000.0 71.11 72.59
76.41 2920 113.50 92.5 5.3 -3.8 0.84 0.85 1.6 1780.0 1800.0 124.98 126.01
78.77 3000 45.81 23.1 20.3 -2.3 1.01 1.00 0.8 1250.0 1460.0 124.99 125.62
79.94 2880 16.61 12.5 33.8 -0.8 1.00 1.00 0.0 290.0 1090.0 110.69 110.24
81.09 2720 9.92 7.8 2.3 0.0 1.99 1.02 0.0 280.0 1000.0 108.50 108.50
82.27 2560 10.39 7.5 -5.3 0.0 1.99 1.02 0.0 550.0 1000.0 104.87 105.69
83.45 2480 20.69 13.3 31.5 0.0 1.01 1.00 0.0 390.0 1020.0 93.01 91.32
84.62 2400 12.28 9.0 35.3 0.0 0.96 1.00 0.0 420.0 1000.0 84.97 84.77
85.77 2280 14.06 9.0 34.5 0.0 1.02 1.00 0.0 350.0 990.0 77.68 77.92
86.94 2200 11.08 8.6 34.5 0.0 0.95 1.00 0.0 410.0 990.0 71.64 72.85
88.13 2120 11.14 8.6 34.5 0.0 1.01 1.00 0.0 620.0 990.0 79.05 80.70
89.30 1880 20.08 16.9 27.8 0.0 1.00 1.00 0.0 320.0 1060.0 89.27 87.46
90.46 1400 6.06 4.7 -8.3 0.0 0.96 1.00 0.0 300.0 990.0 85.22 83.04
91.62 3120 7.97 5.1 34.5 0.0 0.99 1.00 0.0 270.0 980.0 79.97 81.37
92.81 2960 11.42 8.6 37.5 0.0 0.98 1.00 0.0 320.0 980.0 72.67 71.36
93.98 2760 11.64 8.6 39.0 0.0 1.00 1.00 0.0 320.0 990.0 70.01 69.79
95.13 2560 11.36 8.6 37.5 0.0 0.95 1.00 0.0 410.0 990.0 74.51 74.39
99.81 2960 44.11 34.9 23.3 0.0 0.98 0.98 99.6 2550.0 1720.0 108.15 109.26
100.98 3720 190.14 97.6 4.5 -4.5 0.89 0.72 99.6 2540.0 3060.0 124.81 129.42
102.16 5760 293.31 99.6 3.8 -6.8 0.93 0.72 99.6 290.0 2600.0 124.95 132.91
103.32 5640 33.42 39.6 12.0 -6.8 0.90 0.85 99.6 2540.0 2900.0 133.79 133.79
104.49 5240 275.03 99.6 7.5 -7.5 0.95 0.73 99.6 2540.0 2920.0 125.01 135.11
105.66 6120 297.92 99.6 5.3 -8.3 1.99 1.02 0.0 640.0 1380.0 125.00 129.49
106.85 4720 202.67 99.2 4.5 -7.5 0.87 0.73 99.6 2540.0 3060.0 123.61 94.39
108.00 5120 269.50 99.6 4.5 -9.0 0.79 0.85 0.0 280.0 1650.0 124.80 130.58
109.17 5080 9.31 11.0 33.0 0.0 0.99 1.00 0.0 290.0 1050.0 87.30 68.56
122.04 2680 9.03 3.5 -8.3 0.0 1.99 1.02 0.0 290.0 980.0 78.46 78.46
123.21 2200 8.00 7.1 -5.3 0.0 1.99 1.02 0.0 280.0 980.0 78.01 78.01
124.38 1760 5.61 5.9 -6.8 0.0 1.99 1.02 0.0 270.0 980.0 77.64 77.64
125.57 1160 5.42 4.3 -8.3 0.0 1.99 0.95 0.0 260.0 970.0 74.92 73.42
126.72 1600 7.44 3.9 21.0 0.0 0.88 0.98 0.0 260.0 960.0 71.56 71.84
127.89 1760 24.86 8.2 20.3 -9.0 0.95 1.00 0.0 710.0 970.0 73.16 74.04
129.06 3040 96.92 25.5 18.0 -6.8 1.01 1.00 99.6 2550.0 1180.0 92.55 95.14
130.25 6240 51.33 99.6 12.0 -6.0 0.85 0.86 99.6 2540.0 2920.0 103.00 126.24
131.40 4080 152.78 7.1 6.8 0.0 1.99 1.02 0.0 1960.0 1120.0 125.13 118.38
132.57 5640 290.39 99.6 8.3 -6.8 0.86 0.72 99.6 2540.0 3020.0 125.00 134.95
133.72 4480 163.94 99.6 5.3 -6.8 1.99 1.02 0.0 290.0 1400.0 125.00 116.35
134.91 5240 272.86 99.6 6.8 -6.8 0.84 0.76 99.6 2540.0 3040.0 125.00 130.80
136.08 6120 295.75 99.6 7.5 -8.3 0.93 0.73 99.6 2540.0 2900.0 125.00 125.13
145.44 3560 12.69 9.4 -3.8 0.0 1.99 1.02 0.0 290.0 1000.0 86.86 86.86
146.60 3240 11.69 8.6 -3.8 0.0 1.99 1.02 0.0 290.0 1010.0 87.78 87.78
147.76 2960 10.39 7.8 -4.5 0.0 1.99 1.02 0.0 290.0 1010.0 88.27 88.27
148.95 2000 8.11 7.1 -3.0 0.0 1.99 1.02 0.0 280.0 990.0 88.67 88.67
150.12 2960 10.53 7.8 -4.5 0.0 1.99 1.02 0.0 290.0 990.0 88.96 88.96
151.28 2640 8.92 7.1 -5.3 0.0 1.99 1.02 0.0 280.0 990.0 89.11 89.11
152.44 2400 8.14 6.7 -5.3 0.0 1.99 1.02 0.0 280.0 990.0 89.23 89.23
153.63 2200 7.64 5.9 8.3 0.0 1.99 1.02 0.0 280.0 980.0 89.29 89.29
154.80 2760 10.11 11.4 35.3 0.0 0.93 0.95 0.0 400.0 960.0 82.61 79.97
155.97 2680 27.08 16.9 28.5 0.0 0.95 1.00 0.0 650.0 990.0 97.04 97.59
157.12 2640 30.11 22.0 23.3 0.0 1.00 1.00 0.0 770.0 1080.0 99.79 100.22
158.31 2840 63.61 37.6 15.8 0.0 0.98 1.00 10.2 1220.0 1320.0 121.79 123.14
159.48 3440 181.89 99.6 8.3 0.0 0.98 0.98 99.6 2550.0 2230.0 124.99 127.32
160.65 4520 245.08 99.6 6.8 -6.0 0.89 0.73 99.6 2540.0 3020.0 124.99 132.85
161.81 5560 278.92 99.6 5.3 -6.8 0.92 0.73 99.6 2540.0 2820.0 124.99 127.53
162.99 6600 33.44 8.2 7.5 0.0 1.99 1.02 0.0 1480.0 1190.0 125.53 105.77
164.16 4560 164.08 85.5 8.3 -3.8 0.84 0.78 99.6 2540.0 3040.0 125.00 131.59
165.32 5000 258.25 99.6 5.3 -8.3 0.89 0.72 99.6 2530.0 3040.0 125.00 131.95
166.49 5440 275.92 42.7 4.5 0.0 1.99 1.02 0.0 2550.0 1100.0 113.69 92.47
167.67 4240 160.53 99.2 8.3 -3.0 0.87 0.80 99.6 2540.0 3100.0 123.79 127.71
168.84 4440 237.83 99.6 4.5 -8.3 0.75 0.80 0.0 290.0 1480.0 83.62 70.56
170.00 4360 29.81 9.8 -1.5 0.0 1.11 1.02 0.0 290.0 1030.0 78.21 78.21
171.16 3200 11.33 8.2 0.0 0.0 1.99 1.02 0.0 290.0 1020.0 75.64 75.82
