Old L31 + Etec 170s, Comp 215/220 cam, Doug Thorley Header, 3" thunderbolt cats

[Fast355]

Only charging to 12.3 volts with only 11.7 volts getting to the pump sure would make a difference.
Glad you found that.

And yes, if you look in owners manual for a Ramjet 350-350hp, Ramjet 502-502hp/567lb/ft torque hp and the Ramjet ZL1(454 cubes)-510hp/493lb/ft torque it does state that the Vortec truck/van fuel pumps can be used.

There are some of these $100 pumps sold by Racetronics which is located an hour from me up here in Canada.
Here are the specs(90 gph/at 13.5volts@43psi)
From a post from the PPE truck site.
http://www.pacificp.com/forum/viewtopic.php?t=11809

Pretty decent pump for $100, Aeromotive sells the exact same pump save for the "Aeromotive" name on it.

Here is the Racetronix part for sale
http://www.racetronix.biz/itemdesc.asp?ic=RXP369&eq=&Tp=
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FEATURES:

Flows 340 Liter/Hr (90 US GPH) @ 43 PSI @ 13.5V *
In-tank use only / submersible design
Reliable and quiet turbine impeller
Can be used with EFI or carbureted applications
May be used in pulse modulated systems (PWM)
Center-inlet design. Same fitment as Walbro GSS340M, GSS307M and GSS294M pumps.
Each pump individually tested
For gasoline (use with E85 will reduce life expectancy)
Integral check-valve
Over-pressure safety bypass valve

MECHANICAL SPECS:

Weight: 355 grams / 0.783 lbs
Diameter: 38mm / 1.54" O.D.
Body: Black-plated steel with laser etching
Inlet: 22mm / 0.866" OD (non-tapered)
Outlet: 8mm / 0.315" (with barb)
PRV Activation: 90PSI nominal
Impeller design: Single-scroll hard-anodized aluminum turbine

ELECTRICAL SPECS:

Recommended operating voltage: 13.5 volts DC
Minimum operating voltage: 6 volts DC
Max operating voltage: 18 volts DC
Current draw @ 43.5PSI: 12 amps (13.5VDC)
Current draw @ 58.0PSI: 14 amps (13.5VDC)
Current draw @ 80.0PSI: 17 amps (13.5VDC)

NOTES:

REQUIRES UPGRADED IN-TANK AND EXTERNAL WIRING FOR PROPER OPERATION.

THIS PUMP IS SOLD WITHOUT ANY WIRING, FILTERS OR MOUNTS. SELECT THE PARTS YOU REQUIRE IN OUR WEB STORE BASED ON YOUR APPLICATION
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Something to think about. I remember seeing this being an application going wayu back into some of the TBI application up until 1997 in the trucks(1997 is the last year to use the older pump sending unit(1998+ truck use the plastic fuel bucket with jet pump to fill the bucket) with screw on fuel line fittings(1998+ use the Quick Connect fittings).

1997 and older Chev truck 1500 Vortec 350 Delco EP381 or GM p/2 25163473 is $71.00 from Rock Auto(no strainer)

1997 and back ACDELCO Part # FLS1034 CAD$208.49
or
DELCO Part # FLS1110 CAD$226.98
are the Delco fuel sending units. Take not that my computer shows Canadian Dollars, so prices in US dollars will ne lower.



Chev truck 1500 Vortec 350 Delco MU1745 or GM p/n 19177226, 25314321 GM Original Equipment; Pump & Level Sensor; w/ Internal Strainer $224 from Rock Auto


There are some weirdo year/model even engine size breaks between the 2 styles of pums/sending units.






peace
Hog





some weirdo year/model even engine size breaks between the 2 styles of pums/sending units.

Thanks Hog! The 97 Express has the plastic sump style sending unit with the venturi setup and has quick connects. I plan to replace all the plastic line with AN stainless hoses soon.

AD-244 is on
Ok here we go....AD-244 200a and matching CS-130 style connector.



Removing the 16 year old CS-144


Discovered something during teardown. The grey connector is actually a factory conversion harness for a CS-130 to CS-144. MY Express harness was already setup for a CS-130 from the factory.



I loosened the alternator bracket from the head to allow clearance to remove the CS-144s rear brace. After fighting the sliding bushings on the mount and hooking up the charging wire it slipped into place and bolted right up.



I took the opportunity to slip a new stock belt on it and tossed the old one in a small box I have under my back seat. Never hurts to have a spare in the middle of nowhere USA.



Stock CS-130 harness connector plugged righ into the AD-244



Fired her up and turned everything on.


After the cooling fans tripped to high speed I measured the voltage getting to the battery.



Boxed up and kept my old CS-144 alternator and unused mounting parts.



Found this little test slip in the paperwork.



On a side note the engine is running better than ever and my 4 Hi headlights are brighter than they have been Iin years even before the E-fans.

I ran and picked up food and noticed the a/c blows hard even at idle and ice cold even at idle.



I have this nice new $25.00 connector I can return to Napa.

On a side note I picked up a oe roller style Lunati cam on their closeout for $70.00 + shipping.

276/286 @ .006, 218/228 @ .050, .503/.503 w 1.5 rocker, 112° lsa, 108° icl. I am debating yet another cam swap. The 215/220 on a 114 lsa idles too much like a stocker. Might nudge me closer to 400 rwhp too.

I got into hard tonight and it pulled hard all the way up to 55 mph in 1st and got a little sideways going into 2nd.

[mecanicman]

You go by fast4.7 on hpt dont you........

[Fast355]

You go by fast4.7 on hpt dont you........

Yes I do! Thank you for the HPT fan help by the way. One small pair of resistors and the a/c and fans work great without adding an extra port and pressure transducer.