Hi,
Haha....the oem's make things difficult don't they!
I've found a 3 phase fuel pump. Has anyone seen/used these E5LM fuel pumps in a Chevy?
The flows and pressures look like an upgrade over factory pumps, obviously commissioning it in the truck is another story.
There is a kit from TI Automotive that also includes a PCM but we all have those already
Link to pump below:
https://irozmotorsport.com/product/e...ess-fuel-pump/
Follow up on my low side fuel experiments. I built an internal aux pump with the dw440 and their controller. I had a factory low side pump in the factory module running on the factory driver. I used a spare bucket with the dw440 pump in it t-ed into the factory pump feed just under the hat. This would work great, making 72 psi when activated, but I had trouble with the hobbs switch consistently activating it.
low side pump.jpg
In the meantime, I finally received a 2023 escalade V pump/sending unit. So being a simpler and potentially more reliable solution, I tried it. It's working fine, but only keeps ~50 psi of fuel pressure at 9 psi of boost with 72% ethanol. It makes 85 psi on 93.
5.3 with L8T cam, 2650 with 105mm pulley, LT4 injectors and pump. Whatever power that is.
Originally Posted by MeanMike
To confirm, the escalade-V is plug and play and an improvement over the oem pump on the 5.3/ 6.2's? It sounds like it might only be incremental improvements over the Silverado pumps.
Last edited by Darkhorse220; 05-02-2025 at 10:08 PM.
Yes, completely plug and play on my 2020 5.3 truck. It's working great.
It might be a bit more of an upgrade than i thought. I changed pulleys yesterday going up about 11% blower speed and it's still cranking out 50 psi of fuel pressure on 80% ethanol. I'm guessing I'm in the 550rwhp range with this configuration.
Screenshot 2025-05-03 061001.png
There are two differences. First the V module isn't as deep as the Silverado part, but it still seems to be right at the bottom of the tank when installed. Second, copy over these two tables for the sender from an escalade v file. My gauge stayed at 100% for the first 150 miles with the stock cal.
Screenshot 2025-05-03 060321.png
Last edited by MeanMike; 05-03-2025 at 06:29 AM.
Did anyone ever get a the TCM swap to work?
How's the Escalade V pump & module going? I'm considering this as I can't find any other options for more low side flow in the 2019 onwards Silverado's.
You just need the pump/sending unit (86825361). No need for the driver, your stock driver works fine. I'm having no issue with E80 spinning the blower 11,000 rpm (~10psi on a 5.3).
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