Walbro 450 with factory EFI hanger PSA - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**americanmusc1e** · 07-04-2020, 01:17 PM

I posted this in the sloppy mechanics private FB group, but I wanted to put this here as a PSA.

My turbo LS C10 has a Walbro 450 in a factory 88 EFI blazer tank. The pump is on the stock hanger and 25a fuse, 12ga wire/relay to the sending unit. I lost all fuel pressure the other day. Turns out the pump is fine, but the factory bulkhead connector nearly caught on fire. I was thinking about redoing the tank setup anyway, but just a PSA that the Walbro pump (or any moderate/big HP pump) may draw more amperage than ANY factory wiring can handle.

07-04-2020, 01:17 PM	#1
americanmusc1e Senior Member Join Date: Jan 2009 Location: Austin, TX Posts: 1,079	Walbro 450 with factory EFI hanger PSA I posted this in the sloppy mechanics private FB group, but I wanted to put this here as a PSA. My turbo LS C10 has a Walbro 450 in a factory 88 EFI blazer tank. The pump is on the stock hanger and 25a fuse, 12ga wire/relay to the sending unit. I lost all fuel pressure the other day. Turns out the pump is fine, but the factory bulkhead connector nearly caught on fire. I was thinking about redoing the tank setup anyway, but just a PSA that the Walbro pump (or any moderate/big HP pump) may draw more amperage than ANY factory wiring can handle. __________________ -- Josh Instagram: @americanmusc1e OLD SKOOL-- 1970 C10. 454/Th400/3.07 posi Build Thread FARM TRUCK----1949 Chevrolet 3800 Power Wagon Hauler Build Thread 1999 4wd OBS Tahoe - daily. DM me if you can't see photos i posted



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.