Help, Newer trucks, 09-13, walbro 450, pics of my stock pump
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Help, Newer trucks, 09-13, walbro 450, pics of my stock pump
I have been reading and reading and reading..... I think I have found a glimmer of hope.. I have read the whole thread about the walbro 450 being compatible with the stock fpcm. I see that Byrdman11 and Carbongmc may have worked this out... I need some more details if you guys or anyone else could help.
This what I guess my understanding from the thread is
1 You guys are starting with the stock bucket and pump of a flex fuel truck
2 You are completely removing the flex fuel pump and cutting out the stock
filter that is part of the gray plastic top of the bucket.
3 You are installing the walbro 450 in the hole that remains from cutting out
the filter.
4 somehow connecting the walbro 450 with a tee fitting that still allows the
function of the venturi pump/port to operate and keep the bucket full.
5 powering the walbro 450 off of the stock FPCM
6 The fuel system is still returnless
I have a 2011 Chevy Colorado with the stock 5.3 V8 with a magnacharger TVS 1900 at 4.5 psi. Tried a smaller pulley at 6.5 psi and the upper rpm range the fuel pressure started dropping. I am looking on a solution to this problem. If anyone has pics on how they did this or could give more details, it would be greatly appreciated.
Here are some pics of my stock pump.
Fuel pump information for 2011 Colorado V8 5.3 liter Bosch Fuel Pump Assembly
GM part# 20921306
Bosch Part# F 000 H K00 355
Inergy Part # 052141AE
Fuel Pump Control Module Part# 20791901
This controls the fuel pump
Top Hat measurements
152.19mm diameter
3.3 mm thick
Gas Tank Hole – 130.00 mm wide
Flush Top of Hole to Bottom of Tank 235.00mm deep
Fuel Pump Assembly
Extended – 280.00mm
Collapsed – 225.00mm
Pump Measurements
Body – 38.00 wide
Overall length – 111.60mm
Narrow Body at top – 33.3 mm
Inlet Bottom Diameter – 11.00mm
Outlet Top Diameter – 8.82mm
Outlet Top Length – 19.50mm
Strainer/Sock Diameter - 40.00mm
Numbers on Regulator
051 520 kpa
1104501
This what I guess my understanding from the thread is
1 You guys are starting with the stock bucket and pump of a flex fuel truck
2 You are completely removing the flex fuel pump and cutting out the stock
filter that is part of the gray plastic top of the bucket.
3 You are installing the walbro 450 in the hole that remains from cutting out
the filter.
4 somehow connecting the walbro 450 with a tee fitting that still allows the
function of the venturi pump/port to operate and keep the bucket full.
5 powering the walbro 450 off of the stock FPCM
6 The fuel system is still returnless
I have a 2011 Chevy Colorado with the stock 5.3 V8 with a magnacharger TVS 1900 at 4.5 psi. Tried a smaller pulley at 6.5 psi and the upper rpm range the fuel pressure started dropping. I am looking on a solution to this problem. If anyone has pics on how they did this or could give more details, it would be greatly appreciated.
Here are some pics of my stock pump.
Fuel pump information for 2011 Colorado V8 5.3 liter Bosch Fuel Pump Assembly
GM part# 20921306
Bosch Part# F 000 H K00 355
Inergy Part # 052141AE
Fuel Pump Control Module Part# 20791901
This controls the fuel pump
Top Hat measurements
152.19mm diameter
3.3 mm thick
Gas Tank Hole – 130.00 mm wide
Flush Top of Hole to Bottom of Tank 235.00mm deep
Fuel Pump Assembly
Extended – 280.00mm
Collapsed – 225.00mm
Pump Measurements
Body – 38.00 wide
Overall length – 111.60mm
Narrow Body at top – 33.3 mm
Inlet Bottom Diameter – 11.00mm
Outlet Top Diameter – 8.82mm
Outlet Top Length – 19.50mm
Strainer/Sock Diameter - 40.00mm
Numbers on Regulator
051 520 kpa
1104501
#3
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That's the ticket. I keep looking at my bucket and trying to figure it out and it doesn't look possible. I am going to order a pump module for a flex fuel silverado like yours. Once I get it and get it torn apart, it will probably be pretty clear on how to do it. Thanks. I'll order it this week and keep ya posted. I am off to hp tuners to download a flex fuel silverado tune to see what's different with the programing of the fpcm. I may need to order that too. Thanks again
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