fuel pump question

[Todd....!!]

Hi John,

Please excuse the vagness of my post here...

Once read about a fuzzy logic fuel pressure controller which controlled
the voltage to the pump based on some signal from the engine(Vacuum
maybe?) Kindof like a powervalve in a carb...

But instead of limiting the fuel via a valve restriction, as most fuel
pressure regulators do(which restricts the entire system and puts limits
on the total amount of possible fuel delivery in time... It limits the
fuel pressure via the pump power, only pushes the pump voltage to the
amount needed.... Increases pump life, reduces overly pressurized overly
heated fuel and can pump enough fuel for any application due to its
inherent design...

Can't remember the brand of the fuzzy logic system, this is why I asked
to be excused due to my vagness....

Hope I shed some light, or at least re-shed it...

LATER!

Todd....!!

John Wu wrote:
> 
> I didn't think so.
> Paxton has a product that drops the voltage to the fuel pump to 6V when the
> engine isn't at WOT or on boost. They claim it prevents the pump from
> "burning out." Sounded a little phoney to me.
> Sorry for the dumb question.
> 
> -----Original Message-----
> From: Jason Haines <jhaines at lingenfelter.com>
> To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> Date: Monday, June 07, 1999 3:04 PM
> Subject: Re: fuel pump question
> 
> >No, the pump won't burn itself out (the pump doesn't know if you are using
> >the fuel in the engine or returning it to the tank). Using too big a pump
> >can hurt you in terms of added and unneeded current draw, additional noise
> >(bigger pumps tend to be noisier but this is probably not an issue on a
> >ZX-11) and increased fuel temperature.
> >
> >
> >Jason