69MyWay
Well-known member
All things being equal, I would prefer a Mass Air Flow system. However, since the 90 is not my main project, I will stick with what I have for now.
My clutch and flywheel did not show today, so I am not putting th engine in the 69. Instead, we are going to join the Central Florida SCCA Solo II group at the Gainesville road course speedway on Saturday.
Took the car for some tuning with the scanner. I have the timing such right now that I can run in closed loop at WOT under a load and I get no retard. If I bump it just a tad, I end up with 1 or 2 degrees around 5,500. So, I backed it off. This means that I am running based upon the pump gas and conditions as much timing as possible without having to be corrected.
Now, for the fuel pressure. The ideal O2 reading under a load at WOT is around 860 mv. I have my TPiS fuel pressure regulator all the way back out, and am hitting about 901 mv at best during WOT. That means I am a Tad rich.
Not going to sweat the small stuff tonight.
Here is a pic of my scanner.
My clutch and flywheel did not show today, so I am not putting th engine in the 69. Instead, we are going to join the Central Florida SCCA Solo II group at the Gainesville road course speedway on Saturday.
Took the car for some tuning with the scanner. I have the timing such right now that I can run in closed loop at WOT under a load and I get no retard. If I bump it just a tad, I end up with 1 or 2 degrees around 5,500. So, I backed it off. This means that I am running based upon the pump gas and conditions as much timing as possible without having to be corrected.
Now, for the fuel pressure. The ideal O2 reading under a load at WOT is around 860 mv. I have my TPiS fuel pressure regulator all the way back out, and am hitting about 901 mv at best during WOT. That means I am a Tad rich.
Not going to sweat the small stuff tonight.
Here is a pic of my scanner.