- Joined
- Aug 1, 2004
Okay guys, here's what I have-
I haven't played with the powerlogger or really leaned on the throttle since the late Fall. I had a few spare moments to play over the weekend so I logged a 3rd gear wide open blast.
Imagine my surprise when I reviewed the log and found inj duty cycle at 106% and wideband fuel correction maxed out at 30%!
On my last run in the fall, the Duty cycle was at 80% with 0-9% wide open fuel correction correction on a 10.80 pass with no traction.
I'm running a TT SD chip, 60lb injectors and a hot wired DW pump that I just bought from G-body in the Fall to replace a noisy (to me) Walbro. Turbo is a bb 6776 at 27 psi. I actually put WOT timing at 16 degrees to make sure she didn't have any cobwebs left over from the winter.
Luckily, I have a Alkycontrol dual nozzle system and I cranked it all the way up before I floored it, so I logged ZERO knock retard. Whew. Thanks Julio.
I'm running a hood mounted fuel pressure gauge, with base pressure set at 43psi. I installed my rail gauge and got the same pressure. I "think" it's rising at 1:1 with boost, but it's hard to stare at a hood gauge on a 10 sec car! I really need to install a transducer to log fuel pressure.
So heres my question -
What should the DW pump be able to put out if-
1)Car is not running (car runs, just not started!)
2) using the jumper lead behind the alternator to power up the pump
3) Accufab regulator screw turned all the way in?
- I'm now reading 70 psi maximum on the gauge at the rail doing it this way.
I figure 43 psi base + 27 psi boost = I NEED 70psi of fuel pressure, but that's also with 6 injectors sucking in high test at 6k rpm. Not alot of room for error here.
I really don't feel like dropping the tank again, and I'm just tempted to install a Racetronix double pumper in there if (when)I do. I had to fidget the pump around on the hanger on install, and still ended up with a goofy bend on the hose. I'm thinking it might be leaking inside the tank at the pump?
Also, how often do the Accufab regulators need rebuilt?
Thanks in advance guys.
I haven't played with the powerlogger or really leaned on the throttle since the late Fall. I had a few spare moments to play over the weekend so I logged a 3rd gear wide open blast.
Imagine my surprise when I reviewed the log and found inj duty cycle at 106% and wideband fuel correction maxed out at 30%!
On my last run in the fall, the Duty cycle was at 80% with 0-9% wide open fuel correction correction on a 10.80 pass with no traction.
I'm running a TT SD chip, 60lb injectors and a hot wired DW pump that I just bought from G-body in the Fall to replace a noisy (to me) Walbro. Turbo is a bb 6776 at 27 psi. I actually put WOT timing at 16 degrees to make sure she didn't have any cobwebs left over from the winter.
Luckily, I have a Alkycontrol dual nozzle system and I cranked it all the way up before I floored it, so I logged ZERO knock retard. Whew. Thanks Julio.
I'm running a hood mounted fuel pressure gauge, with base pressure set at 43psi. I installed my rail gauge and got the same pressure. I "think" it's rising at 1:1 with boost, but it's hard to stare at a hood gauge on a 10 sec car! I really need to install a transducer to log fuel pressure.
So heres my question -
What should the DW pump be able to put out if-
1)Car is not running (car runs, just not started!)
2) using the jumper lead behind the alternator to power up the pump
3) Accufab regulator screw turned all the way in?
- I'm now reading 70 psi maximum on the gauge at the rail doing it this way.
I figure 43 psi base + 27 psi boost = I NEED 70psi of fuel pressure, but that's also with 6 injectors sucking in high test at 6k rpm. Not alot of room for error here.
I really don't feel like dropping the tank again, and I'm just tempted to install a Racetronix double pumper in there if (when)I do. I had to fidget the pump around on the hanger on install, and still ended up with a goofy bend on the hose. I'm thinking it might be leaking inside the tank at the pump?
Also, how often do the Accufab regulators need rebuilt?
Thanks in advance guys.