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To be honest: they're completely different than I expected. I thought it was going to be, er, hairy, given the porting, the valves, the intake, given that it might not be possible to program the amalgam of older technology that got to work together under Saabine's bonnet to give as smooth a torque curve as the likes of Hirsch, Maptun or Saab themselves can do with Trionic.
However, what came out looks positively like an OEM torque/power curve to me. In fact, had I've been given the results below and told that they were of a 2004 9-5 Aero, I'd believed it.
Here we go:
RPM kW kW torque factor
.....wheels..flywh...Nm
2000 46.00 56.12 268.09 46
2250 62.00 75.64 321.18 62
2500 78.00 95.16 363.66 78
2750 85.50 104.31 362.39 86
3000 93.00 113.46 361.33 93
3250 98.50 120.17 353.26 99
3500 104.00 126.88 346.35 104
3750 111.00 135.42 345.01 111
4000 118.00 143.96 343.85 118
4250 126.00 153.72 345.56 126
4500 134.00 163.48 347.09 134
4750 138.00 168.36 338.63 138
5000 142.00 173.24 331.03 142
5250 146.50 178.73 325.25 147
5500 151.00 184.22 320.01 151
5750 150.00 183.00 304.07 150
6000 149.00 181.78 289.45 149
6250 74.50 90.89 138.94 75
6500 0.00 0.00 0.00 0
6750 0.00 0.00 0.00 0
7000 0.00 0.00 0.00 0
Notes: The Forge MBC did not work well according to Frank, so he had made something else which resulted in boost dropping off from 1.2 to 1.0 bar from 5,000 rpm. I guess this is a function of the stock wastegate actuator not being able to keep the wastegate shut from that rpm level, but not having seen Franks boost control method, I'm guessing.
Taking max boost to 1.5 bar resulted in 270 hp peak, but also way too much torque for the gearbox and even some clutch slip (four puck copper AP disc on stock pressure plate), hence they ended up with the figures above.
The reground cams proved troublesome (apparently they pushed the lifters down to below the point that they were still getting oil, which was one part of the noisy top end problems - the other was bearing caps put on the wrong way round(!) so a couple of lifters did not get any oil), and they were replaced by a set of 9-5 cams. Hence the lower rpm range for peak output (power dropping completely off above 6,000, rev limiter set accordingly at stock 6,250).
PS above figures are from static measurement.
posted by 82.169.6...
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