I am going through tuning the car and when we started the BAP was not functioning correctly. I was able to get things figured out and got a test run in and, wow, what a difference.
Watching the fuel pressure (low side) prior to the BAP working I saw the pressure start in the 60’s and drop to about 43psi at redline (55% E on a 4th gear WOT pull). - HP Tuners
After getting the pump to work correctly I repeated the test and the fuel pressure jumped to 70psi and stayed there the entire run. It was a thing of beauty.
It does bring up a concern, however. How would I know if my BAP quits working? In theory I might see my AFR gauge indicate there is a problem. But at WOT there is no chance I can take a look at the gauge since I am holding on tight and watching the road. Maybe it will get easier when I have tires that won’t let the car spin at 70mph.
