Sorry Jeff - I didn't have much luck with the datalog/boost thing... The main reason I'm not commenting solid numbers is because the datalog showed that I hit 5900RPM, which is mostly impossible as I short shifted every gear @ 4,500RPM. The other major reason is that *I* botched the run. I did a standing start (yes, I'm retarded) instead of a smooth 3rd gear pull. I had a slew of other things show up under boost that caused problems I wasn't expecting:
The base settings for the MAFTPRO expect a 0.5-4.5v signal from the TPS. My TPS puts out .48-3.38v which is within Toyota spec BUT on my boosted run, the MAFTPRO was waiting for a 3.80v signal (~80%+ throttle) before going closed loop and for one (?) of it's boost control settings. My Vf went off the chart and the TCCS just started pumping fuel into the motor - which why you see three large clouds of black smoke in the video (or in the high res version anyway). The AVC-r & S-AFC always took the highest voltage it saw and set that to 100% so this was a new 'problem' for me. The white cloud of smoke between 1-2nd gear is the coolant line. :biglaugh: The car sounded good, but the AFR was 10:1 or worse. According to the datalog, I apparently pussed out and only opened the throttle 90% in first gear too... :icon_mad: To top THAT off, the MAFTPRO started the wastegate cycling at 1PSI and the 2,500RPM range so there is much potential for faster spooling once I get the wastegate solenoid to stay closed.
Short summary - the data is bunk. From a standing start through first the log says it built 1PSI @ 2600RPM at 80% throttle (feathered launch), 4PSI @ 4300RPM (80%T), 6PSI @ 4700 (90%T), 7PSI @ 5,000RPM (90%T), 6PSI @ 5,500RPM (90%T). I'm 100% certain I only hit a max of 4,500RPM on that section, despite the 5950RPM max readout. You can clearly hear the short shift in the video and at 5950RPM I would have been well into the rev limiter.
I changed my TPS this morning to try to eliminate the 3.38V 'problem'. I now get .52-3.53v range so it looks like I'll be changing the MAFTPRO settings at this point. I'll get a third gear pull tonight with any luck. I drove the hell out of the car last night since it was nice and cool. Jeff described this as the bread and butter turbo and I think that's a great description. It just starts blowing and you wait for it, and wait for it and then you realize it's already there... Of course I'm only running 6-7PSI - used to run 19psi on a 60-1 CT-26. :love: I don't why, but this motor has TONS more torque than any other motor I've ever built. I don't know if it's the P-trim housing flowing well or what. I was expectng a drop in manifold backpressure and a minor reduction in torque.
. You basicly got that setup for my cost.
