Installing an EFI style Tanks Inc Fuel Tank in my 68 Camaro and have questions about Tank Venting.

The Kit that I purchased comes with a Vent Port on the Tank and a Vent Port on the Fuel Pump Assembly. The Kit also comes with a "Y" splitter and a Vent/Rollover Valve with instructions to merge the two vent ports with the splitter and then run a single vent line with the Valve on the end to a point that is higher than the Tank Filler Tube (Gas Cap) and mount it vertically. Need to avoid creating a dropdown loop (p trap) in the vent line so that it can freely vent. I fully understand these instructions.

QUESTION: Where on the 68 Camaro meets these requirements?

My observations:

• Should not be vented into the Cabin or Trunk space for obvious reasons.
• From the firewall back, the highest point under the car is the wheel house. It believe there is too much moisture there when driving in the rain for the "open" valve. moisture would enter the tank,
• All other sheet metal is either:
  • Inside the Cabin or Trunk area OR
  • Outside the vehicle, painted and visible.
• The area under the Trunk is not high enough
• The area above the Rear axle is not high enough
• There isn't a compartment at the gas filler to hide it there.
• If I attempted to run it to forward to the engine compartment, I would certainly be creating a drop loop.
• Is there a good Vented Fuel Cap as an option?

I can't be the first one to smash this atom. Imagine that others have come up with several options that they have liked and other that didn't work out that well.

I searched the forum and did not find a complete response so I thought I would make a new thread to see if I could get some traction.

 

Did you every receive an adequate answer to this question? I have the same concern and am just now installing the tank. Seems like there is no good option on my 68 Camaro.

 

I did not. But I do agree with you. There isn't a suitable place on the first gen Camaros to meet the requirements. I did end up making a bracket and mounting it on the passenger side frame rail, along the inner edge, about an inch behind the rear edge of the axle. I didn't want the axle for any reason to interfere with it. Don't imagine it would. I have a video on YouTube that shows the bracket and I point to where it is installed. The video title is: "EFI Fuel Tank | 68 Camaro | The Mistress Ep01", if you would like to see the bracket and how I made it. I think it is the best option.


Best of luck with yours and let me know if you find a better approach. I've only heard Crickets!!! Mike

 

Thanks for replying so quickly. I will take a look at your video. I also found this article from Motor Trend, that references a solution by Finch Performance (browse to the bottom of the article). I have reached out to Finch Performance but have not heard back yet. I will post what they say when they do. https://www.motortrend.com/how-to/16...a-1968-camaro/

 

Just 5/16 pipe the vent up to the front and hide it by the hood hinge?
My first old 69 was a Cali car and had 2 fuel lines to the carb (1- 3/8 and 1- 5/16)
That 2nd line was a return to the fuel tank
Looked clean
You could do something similar for your EFI

 

Good advise. Yes, I have already thought about running a vent line up to the engine compartment and mounting it there. In fact, it is probably what I will do. The '68s have a vented gas cap, some people think this will be enough. And, under mild driving conditions, it probably will work just fine. But there are many occasions when I want to do more than mild driving, and I am afraid of starving the fuel pump. So I will probably run a hose and mount it on the firewall somewhere. The only issue is making sure there are no dips or kinks that will allow any gas that might get in the hose to plug the hose (much like a trap in the kitchen sink drain), so I need to be careful and try to keep the hose higher than the highest part of the fuel tank. Thanks for your input!

 

Oh, and I contacted Finch Performance about their product. Their product is designed for non-vented applications, but would work just fine with my '68. The only thing is, it is mounted high in the trunk. With a closed system, it works well. With a vented system, it would also work but is probably not necessary (at least, that is what I was told). FYI.

 

several modern EFI cars have tank vent line running from tank sender along PS frame up to a canister in the PS fender

1st gen has this room in the fender next to battery to run the line. Use a stock 5/16" return line parallel with the primary line (my 67 came with 2 line clips on frame rails) Right Stuff, among others, sells the pre-bent tank to FP lines. Just use rubber fuel hose from the 5/16 return line up to the inner fender. Could even put in a charchol canister if you wanted or just let the hose vent at that location

 

Thanks for your input, I appreciate it. All the original fuel lines have been removed in my Camaro, so I am running new lines for both supply and return. It will be easy enough to run a vent line along with the other fuel lines. A charcoal filter would eliminate any gas odors coming from the vent line, I may just do that. And, since I have relocated my battery to the trunk, there will be ample room for the vent up near the PS fender. Anyway, everyone, thanks for the comments. They really help me organize my thoughts. I am thinking I will run a separate vent line up to the engine compartment and vent it there. And, a charcoal filter would be the best (albeit rather elegant) solution. Thanks!

 

I did the same with mine. I got it up as high as I could. I still get a little splash when the tanks really full. Like heading out on a trip.