On Mon, 16 Nov 1998 00:01:32 -0500 (EST), you wrote:
>Date: Sun, 15 Nov 1998 19:37:12 -0800
>From: "Holloway,Frank T" <Frank.T.Holloway@KP.ORG>
>Subject: DML: RE: wasTB list,stage ONE Only!:Fuel pressure
>
>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
Hello Frank,
I thought the computers had preset fuel curves @ W.O. throttle - do they
actually re-learn even at full throttle? Man, that'll make it real hard
to trick the damn things...
Later,
Russ Selkirk
-- '96 Black Impala SS '85 Silver Monte SS '98 Amethyst Dakota RC R/T - Port Neches,Texas ================================= NOTE: Anti-Spam Address! Please reply to: RAS002@worldnet.att.net =================================
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