I know 99-up is return less. Did you guys keep the return less system or convert to a return style system. I just picked up an L92 out of an 08 Escalade with harness and pretty much everything with it. I have an extra GN tank and pump/sender. But I am curious what would be involved in converting to return style. Besides the obvious return line. I would also assume a regulator and some kind of after market rails.
Just looking to hear some feed back/experience. Thanks
If you are staying at stock HP levels return-less is fine.
If you are adding any boost or plan to swap the injectors because of heads, cam, or whatever, it's best to swap to return.
Return-less in my opinion can get airlocked and can be hard to bleed. Boost returnless is a no go in my opinion as your injectors have to be huge and the differential pressure gets low so the flow rates crater.
It's my understanding that many factory returnless setups also have PWM pumps to reduce current in low flow demand situations.
When I did my 6.0 swap I went with the Holley in tank setup and wix frame filter. I'm just running a stock bottom end, heads/cam/ headers and terminator xmax and it has worked flawlessly for my setup. 435 at the tires with a 4L80. stays between 58 and 60PSI at the rail.
When I did my 6.0 swap I went with the Holley in tank setup and wix frame filter. I'm just running a stock bottom end, heads/cam/ headers and terminator xmax and it has worked flawlessly for my setup. 435 at the tires with a 4L80. stays between 58 and 60PSI at the rail.
No, I had that one as well, but realized i had the return line running back into the vent line in the Holley drop in pump. So I redid it with a standard LS Wix fuel filter. The Holley pump module already has a pressure regulator built in set to 58PSI.
No, I had that one as well, but realized i had the return line running back into the vent line in the Holley drop in pump. So I redid it with a standard LS Wix fuel filter. The Holley pump module already has a pressure regulator built in set to 58PSI.
This is the one i am using. It went right into the stock location, hooked up the fuel gauge wire, grounded it and supplied it 12v from the relay block I installed.
This in-tank fuel pump module is a high-pressure unit that flows 255 liters per hour (LPH) and is capable of supporting electronic fuel injection (EFI) engines producing up to 550 horsepower. Featuring a pre-calibrated fuel-level sending unit designed to work with the factory fuel gauge for this...
A local guy who does LS swaps for a living that I know pretty good has had a recent rash of poor performing vette filter/regulators. GM and WIX through multiple suppliers. Online appears to have some counterfeit or quality rejects as he had multiples go bad in a shot. Ended up getting a good one at the dealer but at the cost of mid $100.
The vette filter/regulator used to be a good budget option but it appears the budget has disappeared, especially when you need the quick coupling fittings.
A local guy who does LS swaps for a living that I know pretty good has had a recent rash of poor performing vette filter/regulators. GM and WIX through multiple suppliers. Online appears to have some counterfeit or quality rejects as he had multiples go bad in a shot. Ended up getting a good one at the dealer but at the cost of mid $100.
The vette filter/regulator used to be a good budget option but it appears the budget has disappeared, especially when you need the quick coupling fittings.
This is true. Mine has been really good to me.
It was a Wix, I had ran it with a walbro 255. Mine ran a little high at 63 ish psi. That said I lot of people I know have had issues with newer ones, even Wix branded.
Not sure if someone posted it since I have read the whole thread. Holley have their own version of a filter/regulator deal. Kinda pricey but keeps that simplicity.
When converting your fuel system to a return style EFI setup, the biggest challenge can be plumbing the fuel lines. Holley continues to be the leader in fuel system development to make your life easier! The new Holley EFI Filter Regulator assembly simplifies your installation by combining the...
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