UPDATE!!! - I have since learned that I had too much boost with stage 1. I should have only had about 6.8 psi boost. When upgrading to stage 2, I found an exhaust leak at my wastegate, as well as a leak in the boost-sensing line to the wastegate. I'm pretty sure that one or both of these issues caused my excess boost.
Taking a break from the install writeup for some geeky data log analysis!
Here's the boost curve from a full throttle pull in 2nd gear:
Boost is not directly data logged, but intake manifold pressure is logged in psi, and barometric pressure is logged in inches of mercury. I converted barometric pressure to psi (came out to 14.4 psi) and subtracted it from manifold pressure to get boost values.
Based on the peak torque being at 4500 rpm in Prodigy's dyno results, I expected full boost at 4500 rpm. I'm thinking that maybe 2nd gear acceleration is just too fast, so the turbo doesn't get to fully spool at 4500 rpm. I'll have to try again with 3rd gear to test this hypothesis
Also note that I reached full throttle around 1700 rpms (whatever the first point on this chart is). I need to try again from a lower RPM to see if there's any amount of boost below 1700 rpm.
Once I'm satisfied that I have good boost curve data, then I'll also data log what happens when you stomp on the throttle around 4500 rpm to see how much lag there is in building full boost when going from cruising to full throttle.
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