What is this fuel line?
What is this fuel line? I'm new to LS1. Just got mine for my Chevelle and have been removing emmissions stuff. There are 2 fuel lines one to the fuel rail. What is the other fuel line for that runs to the TB?
Disregard the box I stole this pic.
Disregard the box I stole this pic.
Yes...since this sounds like it is going in a conversion, you don't need it. The only gotcha on an F-body like mine is that you can't plug the pipe on ours, otherwise, you won't be able to fill the tank with gas.
the second fuel line is for EVAP.
the gasoline in the tank creates vapors. to contain these vapors, the gas tank is sealed.
when heated (warm day, exhaust heat, ect) these vapors can build pressure.
in the fbody, there is a pressure sensor. when the computer reads pressure above a specific amount, it opens the silinoid that the second "fuel line" connects to.
this vents the vapors into the motor,where they are burned.
you can ditch all that
the gasoline in the tank creates vapors. to contain these vapors, the gas tank is sealed.
when heated (warm day, exhaust heat, ect) these vapors can build pressure.
in the fbody, there is a pressure sensor. when the computer reads pressure above a specific amount, it opens the silinoid that the second "fuel line" connects to.
this vents the vapors into the motor,where they are burned.
you can ditch all that
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo So I guess I don't need this. I will be running a '95 Impala tank and I'm not going to run another line from it if it is not 100% necessary. Who cares about seals anyway. It's a '71 so I can make all the fumes I want.
Originally Posted by stealth71
So I guess I don't need this. I will be running a '95 Impala tank and I'm not going to run another line from it if it is not 100% necessary. Who cares about seals anyway. It's a '71 so I can make all the fumes I want.
seriously though, you'll need either a vented gas cap, or a charcoal canister... the other half of this system, is that the tank needs air to vent INTO it to displace the fuel that is being consumed.
the canister is prefered, since it lets air in and out, but doesnt let gasoline vapors escape and make your car smell like a fuel leak.
Just wanted to reopen this to be sure I understand. I've got a 98 vette ls1 that I'm replumbing for use in an rx7. My fuel rails have two quick connect fittings... The 3/8" quick connect is fuel in for the returnless rails. The 5/16" quick connect that looks like it's plumbed into the pressure balancer thing can be routed directly back to my charcoal cannister... Correct?
Do I need the solenoid to tell it when to vent?
Do I need the solenoid to tell it when to vent?
I think the focus of this thread has been wrong. I've got a 1998 vette motor and I believe its fuel rails are the classic return style... NOT the single input returnless like most folks run.
Can anyone clarify?
Can anyone clarify?
Originally Posted by frijolee
I think the focus of this thread has been wrong. I've got a 1998 vette motor and I believe its fuel rails are the classic return style... NOT the single input returnless like most folks run.
Can anyone clarify?
Can anyone clarify?
on a side note, i caught a bit of extreme 4x4 on spike TV this weekend.
i enjoy the show, but i was yelling "NO stupid!! you dont need to do that!" at my tv this weekend, as they swapped the fuel rails of a LS1 to the return style rails "because our fuel cell has two ports."
