Eric,
On my 98, there is a port on the fuel rail (drivers side) just in front of
where the fuel line attaches. This is where we have been measuring the fuel
pressure during the dyno pulls. With the larger injectors (270 cc) installed
in my truck, after a reset of the computer, the truck runs rich under hard
pulls 12:1 air/fuel ratio. After about 250 miles and approx. 10 drive
cycles, the truck leans out under WOT (14:1 air/fuel ratio). The computer
learns and adjusts to the new injectors. One of the thoughts that we had was
only increasing fuel pressure under WOT. That way, the computer could adapt,
but we would fool it under WOT conditions. Thoughts were an FMU and a boost
pump similar the ones sold with the supercharger kits or an additional
injector triggered off of the MAP or TPS (Bruces idea). We haven't worked
through it yet. I would really like to hear from some of the other people
who have played injector pressure and how they went about making their
changes....
Frank
> -----Original Message-----
> From: Rekker21@AOL.COM [SMTP:Rekker21@AOL.COM]
> Sent: Sunday, November 15, 1998 1:32 PM
> To: dakota-truck@buffnet.net
> Subject: DML: wasTB list,stage ONE Only!:Fuel pressure
>
> In a message dated 11/15/98 11:23:53 AM Eastern Standard Time,
> Frank.T.Holloway@KP.ORG writes:
>
> << We are playing with larger injectors and/or the option of
> increasing fuel pressure under WOT. If you are interested, send Bruce
> Bridges a post.
> >>
> Speaking of fuel pressure, how can you tell what your fuel rail is at
> and
> how can ya increase it?
> Eric, fuel pressure illiterate
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