If I am correct, this maybe a 25lb injector that is required.
Call the Jeep guys and asked them about the 2003 Jeep CH HO 4.7 injectors
(your local service dealer).
--------------------------------------
Steven St.Laurent
C4i System Engineer
C4i Engineering Branch, PSD, MCTSSA
MARCORSYSCOM, U.S. Marine Corps
Office (760) 725-2506 (DSN Prefix: 365)
"Never be content with somebody else definition
of you. Instead, define yourself by your own beliefs,
your own truths, your own understanding of who
you are. Never be content until you are happy with
the unique person GOD has created you to be."
-----Original Message-----
From: BKBridges [mailto:bbridges@flometrics.com]
Sent: Monday, September 09, 2002 12:43 PM
To: dakota-truck@dakota-truck.net
Subject: DML: Re: 4.7L HO Again!
William,
Hmmm,
On the dyno I noted leaner A/F numbers than on 5.2s and 5.9s... WOT was
running 11.9-12.3... Im wondering if the bigger cams may require bigger
injectors as well? Is the injector p/n for the HOs a different P/n than the
regular 4.7?
Bruce
----- Original Message -----
From: "Willliam H. Hiatt III" <william@hiatt.net>
To: <dakota-truck-moderator@bent.twistedbits.net>
Sent: Monday, September 09, 2002 12:01 PM
Subject: DML: 4.7L HO Again!
>
> In my never ending quest to solve Ed's (as well as my) pinging problem, I
> stumbled across this:
>
> The 4.7 flows 22.5 lb/hr @ 49psi, while the 4.7 HO flows 25.8 lb/hr @
49psi.
> Is this difference in the injectors, or is it all in the PCM? I'm thinking
> my pinging is because the truck is leaning out when you snap the throttle
or
> on acceleration.
>
> Also, the 4.7 valve springs are as follows:
>
> 6.69 coils
> 3.28 wire diameter
>
> While the 4.7 HO valve springs are as follows:
> 7.30 coils
> 4.77 wire diameter
>
> Is this something to warrant changing as well (I know it won't affect
> pinging/etc, but just for longevity sakes)
>
> And last but not least, the 4.7 HO spark plugs. They have a platinum rivet
> located on the tip of the center electrode. Why would Dodge run these
> platinum plugs in the HO?
>
> Thanks
> william
>
>
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:05:20 EDT