- Joined
- May 28, 2004
- Messages
- 10,217
- Reaction score
- 2,385
- Points
- 113
- Location
- nr Glos
- Website
- www.badger5.co.uk
Another S3 with a hybrid K04 completed. (finally)
Car needs a better fuel pump as fuel pressure is dropping after 6krpm and going leaner than 'ok'
MAF is bog stock narrow band S3 one.. screens etc all original
Complete kok to map and restrain it from surging which it so wants to do with too much boost too soon in the rev range. Finally cracked it and skirting up the edge of its surge line but not crossing it.
Needs WMI in its life! With WMI and additional cooling/timing possible, this can get towards wellys figures.. where it is short overall of them as is.. Good airflow, but clearly some inefficiencies in combustion process (heat) holding power back, and top end fueling is just not being supported by the cars tired fuel pump.
Headline figures 302bhp/293lbft
The dyno compared to the revo which was on there before.. (highest K04 car ever here btw! tough act to follow - hehe)
the wobbly drop off >6krpm is aligned with the fueling going lean with dropping fuel pressure after then. New pump will fix this
I have also come to the conclusion that wellys car is a Mutant - nothing gets quite as much as his did.. Freakish.. lol
Car needs a better fuel pump as fuel pressure is dropping after 6krpm and going leaner than 'ok'
MAF is bog stock narrow band S3 one.. screens etc all original
Complete kok to map and restrain it from surging which it so wants to do with too much boost too soon in the rev range. Finally cracked it and skirting up the edge of its surge line but not crossing it.
Needs WMI in its life! With WMI and additional cooling/timing possible, this can get towards wellys figures.. where it is short overall of them as is.. Good airflow, but clearly some inefficiencies in combustion process (heat) holding power back, and top end fueling is just not being supported by the cars tired fuel pump.
Headline figures 302bhp/293lbft
Code:
Group A: '003 Group B: '020 Group C: '118
RPM Mass Flow Load Ign. Timing Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization RPM Temperature Load Absolute Pres.
TIME TIME TIME
STAMP /min g/s % °BTDC STAMP °KW °KW °KW °KW STAMP /min °C % mbar
99.32 1600 13.22 9.4 27.8 98.62 0 0 0 0 99.01 1600 30 0 1020
100.54 1640 23.67 42.7 21.8 99.73 0 0 0 0 100.13 1600 30 0 1020
101.61 1640 27.67 76.5 19.5 100.9 0 0 0 0 101.22 1640 29 95.3 1090
102.83 2000 37.92 87.8 21.8 102.05 0 0 0 0 102.42 1840 27 95.3 1180
104.03 2600 60.47 97.6 24 103.23 0 0 0 0 103.63 2440 26 95.3 1360
105.23 3160 117.58 100 15.8 104.44 0 0 0 0 104.84 2960 26 95.3 1810
106.42 3720 140.47 100 18.8 105.63 0 0 0 0 106.03 3520 26 71.8 2320
107.63 4200 157.83 100 19.5 106.84 0 0 0 0 107.24 4040 26 71.8 2420
108.74 4640 200.47 100 17.3 108.02 0 0 0 3 108.41 4520 26 74.9 2470
109.94 5160 232.81 100 13.5 109.14 0 0 0 3 109.54 5000 28 78.4 2540
111.13 5600 247.36 100 16.5 110.34 0 0 0 2.3 110.72 5480 30 80.4 2540
112.33 6040 252.81 100 16.5 111.53 0 0 0 2.3 111.91 5880 32 83.9 2540
113.54 6400 263.69 100 15 112.73 0 3 0 2.3 113.13 6280 33 86.3 2540
114.74 6880 267.53 100 15.8 113.95 0 4.5 0 4.5 114.36 6720 36 87.5 2540
115.93 7200 261.92 100 13.5 115.14 0 4.5 0 4.5 115.53 7080 39 88.6 2540
117.13 7480 271.5 100 13.5 116.33 0 4.5 0 3.8 116.74 7400 41 89.8 2540
The dyno compared to the revo which was on there before.. (highest K04 car ever here btw! tough act to follow - hehe)
the wobbly drop off >6krpm is aligned with the fueling going lean with dropping fuel pressure after then. New pump will fix this
I have also come to the conclusion that wellys car is a Mutant - nothing gets quite as much as his did.. Freakish.. lol
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