Injector Duty cycle calculations

[Bruce Plecan]

Here's something to mull over.
You got your best numbers with the MAF pegged.
May hve been more if you had a greater resolution calibration
Grumpy



> Yep..stinking maf....

> From: Bruce Plecan [SMTP:nacelp at bright.net]
> OK, 165?.
> Somedays, really hard just to word the guestions...........
> Grumpy

> > Efi...
> >Subject: Re: Injector Duty cycle calculations
> > > Oh.. this is not on my truck... this is race engines..
> > Ya, I got that.
> > > My truck was horrible from idle too 3000 where the cam started to
> >> work My bsfc were around .475 from 3000 till 4000 then they started
> >>to climb..  and go goofy.. bounce around..
> > What for fuel metering were you using on the dyno?.  EFI, Holley,
> > SU, Carter, TBI, Webers, <g> etc?
> > Grumpy
> > > Subject: Re: Injector Duty cycle calculations
> > > > and how wide of range did it run, a
> > > > band of a couple hundred rpm or several thousand?.
> > > > Usually 5500 to 7500 Uhmm, this was with the 165??
> > > > Yes and can change in less than an hour... seen where engine
>>> was running  .39.. then set valve lash..
> > > > Had storm fron coming in.. next pull it ran .45's.....john playe
> > > > with carb.. got it back down to .40~.41...
> > > Weather and a relash, and stuff changed that much?. That is
>>> toooo cutting  edge by a long run for a street motor, and that 
>>>rate, you could melt a motor
> > > by carrying a passenger, and pulling a long grade.


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