Guys you saved me a ton a time on my system, I got to start up after a ton of trouble shooting and chasing ground issues, and then ...no fuel to the sniper! I did the exact same thing you guys did with the return line into the vent and I am very thankful that you shared your solution!
Right on 👍. The ultimate solution is to do an in-tank efi fuel pump with return line and vent etc. but I have had a tough time finding a tank (and the budget!)
Great video. My old bronco has basically the same setup and I was going to use the vent tube as the return. Haven't done it yet, so this will hopefully help me avoid any situation. Ty
What is on the other end of the hose you tapped into the filler next that’s going into the grommet? Filter, nothing? I ask because my 87 burban with crate engine, sniper 1 charcoal can failed and with an in tank pump I can access the vent line at the top of the tank. Trying to sort out tank pressure management if I just put a filter on the end of the vent line or tap it into the overflow neck
Though it’s three years old, I really appreciate your video and idea about using the line from the charcoal canister. One concern I have is that return line has a a smaller diameter line running parallel back to the tank. Will that add to the return pressure and will it cause any cavitation within the tank? Lastly, Holley advises placing the regulator on the return line rather than the inlet; where did you place yours? Did you consider running the return to a “T” back near the tank’s primary line?
Our sniper unit is the original version of the Sniper. It has the fuel pressure regulator in the unit so no external fuel pressure is required on our setup. The new Sniper 2 uses an external fuel pressure regulator. I would install that pressure regulator on the return line like Holley suggests. The reasoning on that is if the pressure regulator fails, then you still have full pump pressure (which would be better than no pressure) As far as the return line goes, we haven't had any issues as of yet but I will say a dedicated 3/8 return line would be the best. There is less pressure on the return side which is why our setup still works.
Though I'm not using the charcoal canister's line, I am following your recommendation about a dedicated return line. Additionally, I vented the tank neck as you guys did; it's dicey any time you drill into a tank. Thanks for your help ;-)@@moderate_performance
Were you having high fuel pressure before u ran that new vented line? I was using the same original vent line and had high fuel pressure so assumed the line was bad, ran a new line to tank for return and still have high pressure, but when i let the line drain into a bucket fuel pressure is normal
We did not have any issues with fuel pressure. The only thing we noticed was the "whoosh" of the pressure releasing from the fuel tank when we filled with fuel.
We did think about that. We decided against because one time the gas cap was loose and when I accelerated , fuel came out. Although they would have been small holes, we felt this was a better option. I plan to add a “rollover” valve in the vent tube so that if the car ever flipped (heaven forbid…) that fuel wouldn’t flow out the vent
I seen where a guy had a vented cap, but only vent 1 way letting air in. So he drilled some hole on the underside of the cap. I like how you did your vent though and plan to do something like that. You just use a brass or bronze drill bit?
Hey man, I'm figuring out my return line on my Ranchero right now, and am likely going to end up using the evap line like you. How is it working since you fixed the venting issue?
It has run great! No problems from the return system as of yet. The only real problem has to do with the fuel tank itself. If you go full throttle will low fuel level (1/8 of a tank) it staves the pump cause the pick up is at the front of the tank and the fuel sloshes to the back of the tank upon full throttle. So we just always keep it topped up! lol
The loop vents the tank while preventing the vapor from escaping. The garage does not smell like fuel in this configuration. In theory, it should also prevent fuel from leaking if the car was upside-down (we don't want to test that with the car lol)
Around town my sniper is great but long distance 100 miles plus I have ran into fuel starvation at wide open. I have also noticed my fuel pump gets very loud after running for over an hour gonna ditch stock tank for chevelle efi tank not direct swap but will fit without too much trouble.
We've been meaning to make an update video of how the car has run this year. I find that with my stock tank, when I get low on fuel, if I punch it it'll stutter as if it's got an air bubble in the line. So full tank cruising only if I wanna go fast. I've heard an in-tank pump is the best setup
Cool vid, very helpful. working on a 71 c10 that has a canister. Does the return line off the canister terminate deep enough inside the tank? and why not a vented gas cap?
On my particular gas tank I think the vent line I'm using as the return line has the position in the tank as the fitting is actually at the bottom of the tank, and I assume it goes up into the tank. The return from the sniper does have some pressure. So far it's been fine. Regarding the vented fuel cap... I was looking at fuel caps and from what I could tell I thought my cap was vented. So when I found the tank pressure issues I was having, I had seen someone in a torino group vent with the line, so I did the same
Dude thanks for the idea of using the neck to add a nipple for the ventilation. Dude I have a fully restored 57 Ranchero and I installed an Sniper and everything is good until the cars is hot, the thing runs rough and I can even head the engine pinging while driving and lamba fluctuates to lean at times. If I turn it off and put the switch to on I can hear the pump way to loud like there’s air in the pump. I experienced only one time a pressure build up in the tank but to the point that the tank was swollen and I have to open it real slow. This happens only ones. If you let the car sit to cool down starts like a charm and idles and drives perfect until gets hot again. I have the return but not the vent. Any help I will appreciated
This is the same thing we experienced before we ran the vent line. The ultimate solution would be an in-tank fuel pump with sperate return line and vent. I know Holley makes an efi drop-in unit but you need to have an efi tank or cut a hole in your current tank. Down the road a setup like thatbis what I'd like to do
@@moderate_performance Bro after breaking my head going crazy the stupid fan wouldn’t stop running and I thought I might of mistakenly change the output for the fan and no it was set at 186 to start the fan and 180 to turn it off and in that moment i knew something was not right. Contact summit and for my luck the send me a full new sniper over night and I put it on set the basics and the car started perfect and was smooth no problems too it for a long ride and that was it. I tuned the thing how I wanted and the car was perfect no issues. The summit dude told me that definitely something within the Ecu was defective. Crazy shit bro
@@moderate_performance Yea bro. I been using them for the past year and their support is like no other they just ask few questions and that’s it no doubting you or hard time. Good company to work with
Hi Duke. The fitting we used is 1/8 NPT (national pipe thread). Pipe thread has a taper to it that has an interference fit as you tighten it and will have a solid hold. we also wrapped teflon tap on the threads for a really good seal. We drilled a 11/32 pilot hole and used a 1/8 NPT tap on the filler neck to create the threads needed for the fitting.
I’m also looking to vent my tank. Also with a sniper system, but to be clear, you used Teflon tape on the fitting, then left the hose open to atmosphere? Would an 1/8” hole through the gas cap have a similar effect?
Correct billybobjoephil. A 1/8 hole in the cap would work but water and dirt could get in, therefore the firing and looped hose. The Teflon tape is technically not needed on npt threads but it goes together smoother and is a little extra insurance on a good seal.
Guys you saved me a ton a time on my system, I got to start up after a ton of trouble shooting and chasing ground issues, and then ...no fuel to the sniper! I did the exact same thing you guys did with the return line into the vent and I am very thankful that you shared your solution!
Glad we could help get you up and running!
I have a 71 Torino GT too! Found the perfect video. I'm running that vent line as a return as well. Creative solution.
Right on 👍. The ultimate solution is to do an in-tank efi fuel pump with return line and vent etc. but I have had a tough time finding a tank (and the budget!)
You guys need to make more Torino videos. I’m working on a 70’ Torino. Thank you for all this great info!
Thanks! We have a few Torino videos coming soon! Also planning to do an update on how the Sniper EFI had been after a year of driving. Stay tuned!....
What type of videos would you like to see with the Torino?
Great video. My old bronco has basically the same setup and I was going to use the vent tube as the return. Haven't done it yet, so this will hopefully help me avoid any situation. Ty
Glad it helped
What is on the other end of the hose you tapped into the filler next that’s going into the grommet? Filter, nothing?
I ask because my 87 burban with crate engine, sniper 1 charcoal can failed and with an in tank pump I can access the vent line at the top of the tank. Trying to sort out tank pressure management if I just put a filter on the end of the vent line or tap it into the overflow neck
Though it’s three years old, I really appreciate your video and idea about using the line from the charcoal canister. One concern I have is that return line has a a smaller diameter line running parallel back to the tank. Will that add to the return pressure and will it cause any cavitation within the tank? Lastly, Holley advises placing the regulator on the return line rather than the inlet; where did you place yours? Did you consider running the return to a “T” back near the tank’s primary line?
Our sniper unit is the original version of the Sniper. It has the fuel pressure regulator in the unit so no external fuel pressure is required on our setup. The new Sniper 2 uses an external fuel pressure regulator. I would install that pressure regulator on the return line like Holley suggests. The reasoning on that is if the pressure regulator fails, then you still have full pump pressure (which would be better than no pressure)
As far as the return line goes, we haven't had any issues as of yet but I will say a dedicated 3/8 return line would be the best. There is less pressure on the return side which is why our setup still works.
Though I'm not using the charcoal canister's line, I am following your recommendation about a dedicated return line. Additionally, I vented the tank neck as you guys did; it's dicey any time you drill into a tank. Thanks for your help ;-)@@moderate_performance
Were you having high fuel pressure before u ran that new vented line? I was using the same original vent line and had high fuel pressure so assumed the line was bad, ran a new line to tank for return and still have high pressure, but when i let the line drain into a bucket fuel pressure is normal
We did not have any issues with fuel pressure. The only thing we noticed was the "whoosh" of the pressure releasing from the fuel tank when we filled with fuel.
Why not just drill some 1/16 holes in the gas cap?
We did think about that. We decided against because one time the gas cap was loose and when I accelerated , fuel came out. Although they would have been small holes, we felt this was a better option. I plan to add a “rollover” valve in the vent tube so that if the car ever flipped (heaven forbid…) that fuel wouldn’t flow out the vent
I seen where a guy had a vented cap, but only vent 1 way letting air in. So he drilled some hole on the underside of the cap. I like how you did your vent though and plan to do something like that. You just use a brass or bronze drill bit?
Hey man, I'm figuring out my return line on my Ranchero right now, and am likely going to end up using the evap line like you. How is it working since you fixed the venting issue?
It has run great! No problems from the return system as of yet.
The only real problem has to do with the fuel tank itself. If you go full throttle will low fuel level (1/8 of a tank) it staves the pump cause the pick up is at the front of the tank and the fuel sloshes to the back of the tank upon full throttle. So we just always keep it topped up! lol
Love yiu
I am researching how to the tank on my sniper EFI. Will that Loop in the hose prevent fuel from leaking out if the car is upside down?
The loop vents the tank while preventing the vapor from escaping. The garage does not smell like fuel in this configuration. In theory, it should also prevent fuel from leaking if the car was upside-down (we don't want to test that with the car lol)
Around town my sniper is great but long distance 100 miles plus I have ran into fuel starvation at wide open. I have also noticed my fuel pump gets very loud after running for over an hour gonna ditch stock tank for chevelle efi tank not direct swap but will fit without too much trouble.
We've been meaning to make an update video of how the car has run this year. I find that with my stock tank, when I get low on fuel, if I punch it it'll stutter as if it's got an air bubble in the line. So full tank cruising only if I wanna go fast. I've heard an in-tank pump is the best setup
Cool vid, very helpful. working on a 71 c10 that has a canister. Does the return line off the canister terminate deep enough inside the tank? and why not a vented gas cap?
On my particular gas tank I think the vent line I'm using as the return line has the position in the tank as the fitting is actually at the bottom of the tank, and I assume it goes up into the tank. The return from the sniper does have some pressure. So far it's been fine.
Regarding the vented fuel cap... I was looking at fuel caps and from what I could tell I thought my cap was vented. So when I found the tank pressure issues I was having, I had seen someone in a torino group vent with the line, so I did the same
@@moderate_performance Thanks for the reply!
Dude thanks for the idea of using the neck to add a nipple for the ventilation. Dude I have a fully restored 57 Ranchero and I installed an Sniper and everything is good until the cars is hot, the thing runs rough and I can even head the engine pinging while driving and lamba fluctuates to lean at times. If I turn it off and put the switch to on I can hear the pump way to loud like there’s air in the pump. I experienced only one time a pressure build up in the tank but to the point that the tank was swollen and I have to open it real slow. This happens only ones. If you let the car sit to cool down starts like a charm and idles and drives perfect until gets hot again. I have the return but not the vent. Any help I will appreciated
This is the same thing we experienced before we ran the vent line. The ultimate solution would be an in-tank fuel pump with sperate return line and vent. I know Holley makes an efi drop-in unit but you need to have an efi tank or cut a hole in your current tank. Down the road a setup like thatbis what I'd like to do
@@moderate_performance Bro after breaking my head going crazy the stupid fan wouldn’t stop running and I thought I might of mistakenly change the output for the fan and no it was set at 186 to start the fan and 180 to turn it off and in that moment i knew something was not right. Contact summit and for my luck the send me a full new sniper over night and I put it on set the basics and the car started perfect and was smooth no problems too it for a long ride and that was it. I tuned the thing how I wanted and the car was perfect no issues. The summit dude told me that definitely something within the Ecu was defective. Crazy shit bro
That is crazy! Electricity can do some wierd things! That is some good customer supper right there. Glad it's working like it should.
@@moderate_performance Yea bro. I been using them for the past year and their support is like no other they just ask few questions and that’s it no doubting you or hard time. Good company to work with
What did you do to get the brass fitting to stay in the filler neck? I guess you would say how is it tightened down?
Hi Duke. The fitting we used is 1/8 NPT (national pipe thread). Pipe thread has a taper to it that has an interference fit as you tighten it and will have a solid hold. we also wrapped teflon tap on the threads for a really good seal. We drilled a 11/32 pilot hole and used a 1/8 NPT tap on the filler neck to create the threads needed for the fitting.
@@moderate_performance thank you for replying, that's actually what I ended up doing.
I’m also looking to vent my tank. Also with a sniper system, but to be clear, you used Teflon tape on the fitting, then left the hose open to atmosphere? Would an 1/8” hole through the gas cap have a similar effect?
Correct billybobjoephil. A 1/8 hole in the cap would work but water and dirt could get in, therefore the firing and looped hose. The Teflon tape is technically not needed on npt threads but it goes together smoother and is a little extra insurance on a good seal.
How did you prevent shaving from going down the filler tube?
Can't you just leave the gas cap off at that point