What size is our fuel feed line
#1
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Thread Starter
What size is our fuel feed line
Does anyone know what size our feed line is?
Let me know so I can get the correct sizing for the fuel filter housing inlet/outlet.
Let me know so I can get the correct sizing for the fuel filter housing inlet/outlet.
#4
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That would be nice but the ID of the stock lines going into the the fuel rail are 6MM. Some parts of the fuel lines and filter, neck down to 5.5mm. Very , very small for even 550 hp.
I had to change my whole system out to 8an lines and use one intank pump that feeds duel bosh 44 pumps, plus installed a fuel surge tank. If you hook up a fuel PSI gauge and check psi over 4500 RPM at WOT.
My Cl55 pump set up is different than the E class but fuel raisl are the same. I used a 8an main fuel line to feed one 6an line for each rail.
I had to change my whole system out to 8an lines and use one intank pump that feeds duel bosh 44 pumps, plus installed a fuel surge tank. If you hook up a fuel PSI gauge and check psi over 4500 RPM at WOT.
My Cl55 pump set up is different than the E class but fuel raisl are the same. I used a 8an main fuel line to feed one 6an line for each rail.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Last edited by Exotic-metal55; 02-18-2014 at 02:37 PM.
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#9
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Great idea on a return system but I suspect few will spend money on a return system. Everyone always talk a good game... suggesting this, wanting that.... but in the end very few actually are willing to pay for it (an example is everyone wanting to have their paint corrected by a pro detailer....until they realize it costs +1k and 2 to 3 days). Personally, I am all for just finding a replacement fuel filter in the oem location or a kit that puts the filter inline-so easier to replace. I think this is something that the masses want and can afford.
Regardless, Chawkins has already provided a lot valuable info!!!
Regardless, Chawkins has already provided a lot valuable info!!!
#10
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That would be nice but the ID of the stock lines going into the the fuel rail are 6MM. Some parts of the fuel lines and filter, neck down to 5.5mm. Very , very small for even 550 hp.
I had to change my whole system out to 8an lines and use one intank pump that feeds duel bosh 44 pumps, plus installed a fuel surge tank. If you hook up a fuel PSI gauge and check psi over 4500 RPM at WOT.
My Cl55 pump set up is different than the E class but fuel raisl are the same. I used a 8an main fuel line to feed one 6an line for each rail.
I had to change my whole system out to 8an lines and use one intank pump that feeds duel bosh 44 pumps, plus installed a fuel surge tank. If you hook up a fuel PSI gauge and check psi over 4500 RPM at WOT.
My Cl55 pump set up is different than the E class but fuel raisl are the same. I used a 8an main fuel line to feed one 6an line for each rail.
#11
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Thread Starter
Thanks for the info guys, not looking to redo the fuel system, just get rid of the oem filter and place an aftermarket one inline. I bought an inline unit yesterday, a Russell fuel filter from summit racing. It is a universal filter good for regular gas, alcohol, e85 and is 3 inches long, 1.25 inches in diameter. It comes with a stainless 40 Micro mesh element , and the best part is it was only $27.00
I plan to throw it in next week. Just need to decide where to put it for easy servicability.
I plan to throw it in next week. Just need to decide where to put it for easy servicability.
#12
MBWorld Fanatic!
Thanks for the info guys, not looking to redo the fuel system, just get rid of the oem filter and place an aftermarket one inline. I bought an inline unit yesterday, a Russell fuel filter from summit racing. It is a universal filter good for regular gas, alcohol, e85 and is 3 inches long, 1.25 inches in diameter. It comes with a stainless 40 Micro mesh element , and the best part is it was only $27.00
I plan to throw it in next week. Just need to decide where to put it for easy servicability.
I plan to throw it in next week. Just need to decide where to put it for easy servicability.
Also, have you try to put the sending unit together yet? I broke mine taking it apart, so I assume it's not possible.
#13
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Thread Starter
What broke David? I just twisted the top back on, but will verify it is locked in place tonight before I attempt my in tank unit.
That is what I was thinking of doing in the engine bay, there is plenty of place for this little critter.
That is what I was thinking of doing in the engine bay, there is plenty of place for this little critter.
#14
Engine bay would be best . Also Chawkins can you a step by step DIY thread on this when you get the filter , like Forrest I broke mine also but maybe mine was already cracking and just needed an excuse to break
#15
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Thread Starter
Np sir. I plan to do the following:
Before and after fuel pressure test at the fuel rail
Removal steps of the sender unit
Removal steps of the fuel filter
Reinstall steps of the sender unit
Install of the new engine bay fuel filter assembly
Before and after fuel pressure test at the fuel rail
Removal steps of the sender unit
Removal steps of the fuel filter
Reinstall steps of the sender unit
Install of the new engine bay fuel filter assembly
#17
#22
Senior Member
You are going to run this on the output of the left side fuel sender, correct? At what location?
EDIT: Also, with the OEM internal fuel filter removed, yes?
Last edited by GunMoto; 02-20-2014 at 10:23 AM.
#24
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Thread Starter
The fuel is pre filtered before the sender by those sacks that are attached to the bottom of each fuel pump.
You are correct Pare, I am removing the oem filter and placing this Russell filter in the engine bay.
Once the fuel leaves the sender unit, it is on its way to the engine. I don't think it matters where it is filtered as long as it is done before it hits our fuel rails.
I anticipate fuel pressure to rise though since the stock filter will be so clogged full of dirt.
You are correct Pare, I am removing the oem filter and placing this Russell filter in the engine bay.
Once the fuel leaves the sender unit, it is on its way to the engine. I don't think it matters where it is filtered as long as it is done before it hits our fuel rails.
I anticipate fuel pressure to rise though since the stock filter will be so clogged full of dirt.
Last edited by chawkins2001; 02-20-2014 at 10:58 AM.