Dyno'd my car during Santa Tech at Motorsport Connections last weekend, we wanted to get the a/f tuned with the right fuel pressure. We started it at 52psi and went from there, maximum power/torque and good a/f was realized at 58psi, so that is where it is now set. It now runs a little lean in the midrange and slightly fat on the topend. This is good for midrange punch, with it being a bit lean, and the topend has plenty of fuel and is safe to run at sustained high revs...no worries of premature internal wear.
It pulled a solid 230whp with the fuel pressure set at 58pounds, torque was in the 215 range at peak. (edit: peak torque was just over 210 at the wheels, HP was about 235 at the wheels. The curves are much better than on my last dyno run (last December), where we ran 62psi (rich all over the place). It's making quite a bit more power all across the board, and the midrange throttle response/punch is a lot stronger.
I'm about to go out with the stopwatch and time the 50-80, was about 4.1s with the old chip/62psi. (update: Getting high 3's with current setup, 3.8-3.9)
Here is my graph:
edit: 2 other cars dyno'd. An M30 6er with a Schrick cam and other goodies, he managed 202whp. A 3.2L M3 with Schrick Cam Kit, he pulled 225whp.
It pulled a solid 230whp with the fuel pressure set at 58pounds, torque was in the 215 range at peak. (edit: peak torque was just over 210 at the wheels, HP was about 235 at the wheels. The curves are much better than on my last dyno run (last December), where we ran 62psi (rich all over the place). It's making quite a bit more power all across the board, and the midrange throttle response/punch is a lot stronger.
I'm about to go out with the stopwatch and time the 50-80, was about 4.1s with the old chip/62psi. (update: Getting high 3's with current setup, 3.8-3.9)
Here is my graph:
edit: 2 other cars dyno'd. An M30 6er with a Schrick cam and other goodies, he managed 202whp. A 3.2L M3 with Schrick Cam Kit, he pulled 225whp.
Comment