Alan,
I don't know if all the big injectors are high impedance, but next time I
talk to Russ at RC Engineering, I will ask for you. I do agree with you that
the they pressure
always needs to be watched when flowing injectors. But honestly, all of the
injector manufactures rate their injectors at 43.5 PSI and they do have an
operating
fuel pressure range. We flowed the Seimens injector at 43.5 PSI so we could
cross reference it with other injectors. On my 95, fuel pressure is 38.5 PSI
at the injectors and some of the earlier posts say that on the late models
(97 through current), Dodge runs a fuel pressure of 46 PSI.
> -----Original Message-----
> From: Mok, Alan (SPB Brentwood) [SMTP:AMok@spbank.com]
> Sent: Tuesday, October 13, 1998 7:31 AM
> To: dakota-truck@buffnet.net
> Subject: RE: DML: Fuel Injector Information
>
> Thanks for the very informative post, Frank.
>
> Do you know if all the really BIG injectors (>42lb/hr) are high
> impedance? Is it because they take more current to open/close?
>
> Be aware that not all companies rate their injector at the same
> pressure. SVO (Ford) rates them at 38 or 39 psi. maybe that's why they
> are labeled 25lb since it's flowed at 43psi.
>
> Thanks again.
>
> Alan
>
>
>
> '98 Dakota R/T (Headers, FABM & waiting for Shift kit)
> '89 Mustang GT (347, Griggs, S-trim...)
> Ducati 916 (someday)
>
>
>
> -----Original Message-----
> From: Holloway,Frank T
> [mailto:Frank.T.Holloway@KP.ORG]
> Sent: Saturday, October 10, 1998 8:31 PM
> To: 'dakota-truck@buffnet.net'
> Subject: RE: DML: Fuel Injector Information
>
> Eric,
>
> Its interesting, injectors are pretty much like light
> bulbs, if one company
> makes a 60 W. light bulb all light bulb companies make
> 60 W light bulbs. The
> same goes for
> the high impedance injectors. You have your choice of
> manufactures. If your
> new injectors have a P/N on the side, then I can find
> out the flow for you.
> If they are
> "off the shelf" injectors (and I am almost positive they
> are) then they are
> either the 240CC or the 270CC injectors. I would suspect
> that if they are
> the SVO injectors
> then more then likely they are the 270CC (25 Lbs/Hr)
> injectors. Take a look
> for a P/N and additionally if you could take a look at
> your old injectors
> for a P/N and
> let me know what it is. I checked the 98, I would be
> curious what your
> engine had in it......
>
> Thanks Frank
>
> > -----Original Message-----
> > From: Rekker21@aol.com [SMTP:Rekker21@aol.com]
> > Sent: Saturday, October 10, 1998 7:59 AM
> > To: dakota-truck@buffnet.net
> > Subject: Re: DML: Fuel Injector Information
> >
> > In a message dated 10/9/98 6:53:24 PM Eastern Daylight
> Time,
> > Frank.T.Holloway@KP.ORG writes:
> >
> > << The only question surrounding these injectors will
> be whether or
> > not the O2
> > sensor can reduce the pulse width enough to not be
> rich at an idle. If it
> > is
> > rich at an idle, then the only option will be to drop
> down to the 245 cc
> > injectors. >>
> > Frank,
> > I wish I new exactly what these injectors were
> that I put in besides
> > that
> > they are Ford. But I know Im using much more fuel
> than before the
> > injector
> > install. The motor runs much smoother now, but
> anyway, My 5.9 doesnt run
> > rich
> > at all at an idle. Infact the past couple of days
> now, its been dry, but
> > this
> > comp has fully reacted to the new injectors and is
> running very strong.
> > Just
> > a flip of the pedal and its instant results. I
> modified my throttle body
> > quite a bit, up to the maximum without bigger
> butterflys and also reduced
> > the
> > plenum and shortened the runners in my intake
> manifold. I have the hipo
> > comp,
> > JBA headers with Borla true duals, pulleys and a K&N
> open air. Also a ram
> > air
> > hood. The throttle response before was good but not
> exceptional. Now its
> > not
> > exceptional, its awesome! Now that the weather is
> cool, 66 is the high
> > today
> > and sunny, this thing runs like a bat out of hell!
> > Eric
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:10:37 EDT