Blown fuel/timing maps

ECMnut ECMnut at aol.com
Sun May 3 13:04:49 GMT 1998


I'm not sure who started this thread about the twin turboed Camaro,
but I want a ride in it!  

I'm not sure how you specify it w/DFIs, but the timing & fuel tables 
in a stock Syclone (2  BAR) "might" look exactly this:

Deg. vs MAP & RPM
        |  600   800   1000  1200  1400  1600  2000  2400  2800  3200  3600
4000  4400  4800 
------------------------------------------------------------------------------
---------------
30      |  26.0  26.0  17.9  17.9  21.8  26.0  28.1  29.9  29.9  38.0  38.0
38.0  38.0  38.0
40      |  26.0  26.0  27.1  28.1  32.0  34.8  38.0  38.0  38.0  38.0  38.0
38.0  38.0  38.0
50      |  23.9  23.9  25.0  26.0  28.1  29.9  30.9  30.9  32.0  33.0  34.8
35.9  35.9  35.9
60      |  20.0  20.0  25.0  26.0  27.1  28.1  29.2  29.9  30.9  32.0  33.0
34.8  34.8  35.9
70      |  15.8  15.8  16.5  19.0  21.8  25.0  26.0  28.8  29.9  32.0  32.0
32.7  34.1  34.1
80      |   9.8  12.0  12.0  14.1  19.0  20.0  21.1  23.9  25.0  26.7  26.7
28.8  29.9  29.9
90      |   9.8   9.8  10.9  10.9  10.9  13.0  16.5  17.9  19.0  20.0  23.9
26.0  28.1  28.1
100     |   9.8   9.8   9.8   9.8   9.8  10.9  13.0  14.8  19.0  20.0  21.8
23.9  25.0  26.0
110     |   9.8   9.8   9.8   9.8   9.8   9.8  13.0  15.1  15.1  15.8  17.9
19.0  20.0  21.8
120     |   9.8   9.8   9.8   9.8   9.8   9.8  13.0  15.1  15.1  15.8  17.9
18.6  18.6  20.0
130     |   9.8   9.8   9.8   9.8   9.8   9.8  13.0  15.1  15.1  15.1  16.9
19.0  16.5  17.9
140     |   9.8   9.8   9.8   9.8   9.8   9.8  13.0  15.1  15.1  15.1  16.9
19.0  15.8  17.9
150     |   6.0   6.0   6.0   6.0   6.0   9.8  13.0  15.1  15.1  15.1  16.9
19.0  14.8  17.9
160     |   6.0   6.0   6.0   6.0   6.0   9.8  13.0  14.8  14.8  14.8  16.9
17.9  17.9  17.9
170     |   6.0   6.0   6.0   6.0   6.0   9.8  13.0  14.8  14.8  14.8  16.9
17.9  17.9  17.9
180     |   6.0   6.0   6.0   6.0   6.0   9.8  13.0  14.8  14.8  14.8  16.9
17.9  17.9  17.9
190     |   6.0   6.0   6.0   6.0   6.0   9.8   8.1   9.8   9.8   9.8  12.0
15.1  13.0  13.0

  Base Pulse VE vs RPM And MAP                    
%
        |  20    30    40    50    60    70    80    90    100  
---------------------------------------------------------------
800     |  34.8  35.9  35.9  35.9  36.7  36.7  36.7  37.9  38.7
1200    |  34.8  35.9  35.9  37.9  38.7  38.7  38.7  39.8  39.8
1600    |  34.8  36.7  37.9  37.9  39.8  40.6  40.6  41.8  43.0
2000    |  35.9  37.9  38.7  38.7  40.6  43.0  43.8  44.9  45.7
2400    |  36.7  38.7  39.8  40.6  43.0  43.8  45.7  46.9  47.7
2800    |  37.9  39.8  41.8  43.0  44.9  45.7  47.7  48.8  50.0
3200    |  39.8  41.8  43.8  43.8  45.7  47.7  50.0  50.8  52.0
3600    |  41.8  43.0  43.8  43.8  46.9  48.8  50.0  52.0  52.7
4000    |  43.8  43.8  44.9  44.9  47.7  50.0  52.0  52.7  54.7

Remember this is a 4.3 V6 that pulls like a jet till 4,000 RPM. 
Then goes to sleep.  They have low perf ports & cam, and a
small turbo.   HTH
Mike V.





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