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Doing a full return setup on my 2004 C5. I'm using the rails that come with my TVS2300 SC and Aeromotive sent me this diagram (I'm just using dual 450s intank). So would this be correct for a Magnuson setup?
I've read even straight from Aeromotive that ideally you shouldn't deadhead your fuel rails.
But, sometimes due to packaging constraints in the engine bay you don't have a choice.
I pretty much have my LSA fuel system set up in the diagram you posted only I'm still on an intank pump and only one filter before the fuel rails to protect the injectors. Early C5 with factory full return.
Doing a full return setup on my 2004 C5. I'm using the rails that come with my TVS2300 SC and Aeromotive sent me this diagram (I'm just using dual 450s intank). So would this be correct for a Magnuson setup?
How much HP are you making? What kind of fuel are you running?
If you have dual 450's I'm not sure what you are hoping to gain with the A1000? Unless you are going to run a secondary fuel pump off of vacuum.
There is no need to run an AN8 line for return. You can do an AN6 line for the return or you can use the factory supply line as the return.
As others have said, I would not dead head the fuel rail. If you do this you kind of defeat the purpose of doing a return system.
For reference I run a single 525 pump on a return system and I make 710rwhp on 93.
Nooo I'm not running that setup from the pump back. Yeah its Chris1313 dual 450s (second pump on at boost). Its the oem style rails that come with the Magnuson SC. This is on a fully built LSX 388 and will be on E85 with 1500cc injectors, built heads, etc. Running all new lines from pump to front btw - 8an feed, 6an return. Hoping to get to 800hp at least.
I might be switching to a different sc later on but want to see what I can get out of the Maggie 2300 first :p
So you're saying do the Y fitting to the back of the rails (feed) and the regulator to the front (between the crossover fuel pipe)?
Kinda like this diagram :
Last edited by vettefx76; Mar 15, 2022 at 01:49 PM.
Nooo I'm not running that setup from the pump back. Yeah its Chris1313 dual 450s (second pump on at boost). Its the oem style rails that come with the Magnuson SC. This is on a fully built LSX 388 and will be on E85 with 1500cc injectors, built heads, etc. Running all new lines from pump to front btw - 8an feed, 6an return. Hoping to get to 800hp at least.
I might be switching to a different sc later on but want to see what I can get out of the Maggie 2300 first :p
So you're saying do the Y fitting to the back of the rails (feed) and the regulator to the front (between the crossover fuel pipe)?
Nooo I'm not running that setup from the pump back. Yeah its Chris1313 dual 450s (second pump on at boost). Its the oem style rails that come with the Magnuson SC. This is on a fully built LSX 388 and will be on E85 with 1500cc injectors, built heads, etc. Running all new lines from pump to front btw - 8an feed, 6an return. Hoping to get to 800hp at least.
I might be switching to a different sc later on but want to see what I can get out of the Maggie 2300 first :p
So you're saying do the Y fitting to the back of the rails (feed) and the regulator to the front (between the crossover fuel pipe)?
Kinda like this diagram :
Yes, I also run 2 450s, one in each tank with a hob switch on the passenger pump. I run a dash 10 line between tanks at the bottom to keep things level, also my return line spits in the rear and after going thru a second cooler, drops into each canister in each tank that holds my 450s...
Both pumps T into a dash 8 line that runs to a Y before the rails, then comes off the rails to a FPR and then into a cooler, then to the back...It's the only set up that has worked flawlessly for the the last 5+ years, especially coming up the mountain on HOT days...
This is big preference thing. apparently The regulator work before of after the rail.
But my OCD won't let me put the return before the rail.
I agree about the preference thing lol. Seems like there are a dozen different ways to do this and everyone is happy with whichever way they chose lol. I just talked to a guy using the easiest method of using the oem feed with the regulator before and it works great apparently, with almost 1000whp...
Is this the correct return setup for me?
