DLinson
01-31-2006, 10:59 AM
My BBC 427 is equipped with an Accel DFI Superam system. The engine should produce between 575 and 600 hp. It has a Comp Cams 288/.653 solid roller cam, 10:1 pistions, and the usual performance upgrades.
I spent some time getting the timing set, adjusting the idle, throttle position, and a few others things. It idle good at about 850 rpm with the IAC position at about 9.5 when ideling.
The fuel injectors are only 30 lb/hr which should be about 42 lb/hr. Would that be the cause for poor starts? In the system configuration screen, I set the injector size to 30 lb/hr so I would think it would adjust the pulse width to compensate. Is it just not enough pulse width there for priming with that small injector? It does idle fine. There is a slight hessitation off idle when you rev it up. Nothing crazy yet, its only been running for a total of 30 minutes so far. I was able to pull it out and back into the garage under it's own power (for the first time since I bought it 8 years ago.) Should I just mess with the starting fuel coefficient until it seems to work? I am a bigginer at the fuel injection stuff and Jody says that it is a pain to cut your teeth on.
If anyone has a suggestion, I'm all ears.
Thanks,
Dennis
I spent some time getting the timing set, adjusting the idle, throttle position, and a few others things. It idle good at about 850 rpm with the IAC position at about 9.5 when ideling.
The fuel injectors are only 30 lb/hr which should be about 42 lb/hr. Would that be the cause for poor starts? In the system configuration screen, I set the injector size to 30 lb/hr so I would think it would adjust the pulse width to compensate. Is it just not enough pulse width there for priming with that small injector? It does idle fine. There is a slight hessitation off idle when you rev it up. Nothing crazy yet, its only been running for a total of 30 minutes so far. I was able to pull it out and back into the garage under it's own power (for the first time since I bought it 8 years ago.) Should I just mess with the starting fuel coefficient until it seems to work? I am a bigginer at the fuel injection stuff and Jody says that it is a pain to cut your teeth on.
If anyone has a suggestion, I'm all ears.
Thanks,
Dennis