Injector size and BSFC?
Thread Starter
Burning Brakes
Joined: Dec 2002
Posts: 947
Likes: 0
From: Middletown N.Y.
Injector size and BSFC?
What kind of BSFC #'S are you naturally aspirated guys seeing? I'm trying to decide between a 30# or 36# injector for my 550-600HP NA motor. I have the old style DFI (for now), I'm leaning more towards the 30# but I'm curious on what results you more experienced guys may have gotten. 
Thread Starter
Burning Brakes
Joined: Dec 2002
Posts: 947
Likes: 0
From: Middletown N.Y.
Re: Injector size and BSFC? (CORKVETTE1)
Hopefully it works out the same for me, seems like even 30#'s would be more than enough. Seems like you have very low BSFC #'s good job. What engine management do you use? Again thanks for the reply!
Melting Slicks
Joined: Jun 2000
Posts: 3,215
Likes: 6
From: Tampa Florida
Re: Injector size and BSFC? (JUAN J SANCHEZ)
I run 36# Accels. Duty cycle is less than 60% with stock fuel regulator and making 455 factory rating type horsepower...about 400 on a Dynojet for whp.
Leaves plenty of room to expand...
32's are also available.
Leaves plenty of room to expand...
32's are also available.
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Le Mans Master
Joined: Sep 2000
Posts: 6,303
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From: Bartlett IL
Re: Injector size and BSFC? (JUAN J SANCHEZ)
With a BFSC of .5, the 36# will support 576hp. The 30's only 480. Given a choice I would choose the bigger injector because of duty cycle and more overhead for injector pulse width at WOT.
Thread Starter
Burning Brakes
Joined: Dec 2002
Posts: 947
Likes: 0
From: Middletown N.Y.
Re: Injector size and BSFC? (Dominic Sorresso)
I may upgrade to that Gen VII sooner than I thought. I'll get back to you on that. I'll definitly will upgrade sooner or later. I haven't purchased the injectors Yet but they will be 30 or 36#'ders. Although I would like to believe the engine will be efficient enough to work with a smaller injector. We'll see.
[Modified by JUAN J SANCHEZ, 4:20 AM 6/29/2004]
[Modified by JUAN J SANCHEZ, 4:20 AM 6/29/2004]