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I need a location for the C5 style regulator/filter in my ‘68. I have the body off and looking at it, it doesn’t look like it will interfere after I put it back on. But it doesn’t hurt to ask. I’m looking at the location of the yellow block. Has anyone used this spot for their filter. Is there enough room for it to fit comfortably?
Last edited by David Wilson; Nov 10, 2021 at 04:21 PM.
I’m guessing you are talking about an electric fuel filter. If so, that spot makes things tight and very difficult to take out your gas tank should you ever want/need to. The cross member on the passenger side works better for me. That’s where I have my facet placed.
I’m guessing you are talking about an electric fuel filter. If so, that spot makes things tight and very difficult to take out your gas tank should you ever want/need to. The cross member on the passenger side works better for me. That’s where I have my facet placed.
I was thinking about putting this filter/regulator here where I have it taped. It’s part of an EFI set up with a new Tanks inc tank and in-tank pump.
My F150 and a few others I'm sure has on that inside passenger rail. However, with the body on, I'm not sure how much room I'll have.
Regarding removing the tank, I plan on hard lines from the tank down to the rail just behind the differential crossmember where I will 90 them forward and convert to PTFE braided hose forward to the filter. For tank removal, I can disconnect the fuel lines right there.
I need a location for the C5 style regulator/filter in my ‘68. I have the body off and looking at it, it doesn’t look like it will interfere after I put it back on. But it doesn’t hurt to ask. I’m looking at the location of the yellow block. Has anyone used this spot for their filter. Is there enough room for it to fit comfortably?
This is where I located the C5 Corvette Filter / Regulator when I installed my LS3, Also ran the fuel line down the driver side since the LS3 wants the line connection at the driver side rails.
I ran hard lines from the sending unit to the regulator , hard line return from the regulator back to the sending unit, hardline from regulator down the driver side to the engine bay.
I put mine in the right rear quarter panel. made up a bracket, tapped 2 holes in the frame. my feed and return lines run like stock factory.
A photo of it mocked up before hooking up the lines.
Last edited by 4-vettes; Nov 12, 2021 at 05:14 AM.
This is how I ended up doing my C5 filter. I couldn’t bring myself to let any fuel lines hang below the tank despite the fact it probably have been just fine. I think it just looks like crap. I tried to get them as tight as possible then covered a few areas with heat shrink tubing for extra protection. Even though the LS feeds fuel from the driver side, I wanted to follow the fuel line path up the passenger side. It’s hard line to the filter then steel braided PTFE from the filter forward.
Thanks for all the help!
This is how I ended up doing my C5 filter. I couldn’t bring myself to let any fuel lines hang below the tank despite the fact it probably have been just fine. I think it just looks like crap. I tried to get them as tight as possible then covered a few areas with heat shrink tubing for extra protection. Even though the LS feeds fuel from the driver side, I wanted to follow the fuel line path up the passenger side. It’s hard line to the filter then steel braided PTFE from the filter forward.
Thanks for all the help!
So once all your lines are in make sure you pressure test all the lines to make sure they don't leak. I used air pressure to test everything. Supplied 100 PSI at each section and make sure it held this for 24HRS.
The last test was to test at the engine rails to make sure the C5 filter supplied ~ 60 psi. This tested very well using air only.
While Mr. Wilsons setup looks really nice. I would be worried that those fuel lines on the front of the tank would rub. Very tight in there. Also think about where the exhaust runs. you have an exhaust pipe going right under those fuel lines and fairly close to the filter/regulator. I looked at that in the beginning. And decided to run flexible lines in the factory location, putting the filter regulator right about where the factory flexable lines would have met the steel lines. then running a single feed line forward. Keeping everything far away from hot exhaust.
That is quality plumbing job!
Unfortunately, the jack tray box extends halfway down that rail. Unless you want modify the tray, filter/reg is not going to fit there.
While Mr. Wilsons setup looks really nice. I would be worried that those fuel lines on the front of the tank would rub. Very tight in there. Also think about where the exhaust runs. you have an exhaust pipe going right under those fuel lines and fairly close to the filter/regulator. I looked at that in the beginning. And decided to run flexible lines in the factory location, putting the filter regulator right about where the factory flexable lines would have met the steel lines. then running a single feed line forward. Keeping everything far away from hot exhaust.
Thanks. It looks a lot tighter than it actually is. That was my original concern. I've included a pic of the clearance on the other strap as an example. The tubes aren't tight in there and I was able to add some rubber I had laying around for extra protection.
As far as exhaust heat, it's something I will have to address with a heat shield. I mean Chevy did put the gas tank right there. So it can't be an impossible problem.
That is quality plumbing job!
Unfortunately, the jack tray box extends halfway down that rail. Unless you want modify the tray, filter/reg is not going to fit there.
Thank you Wolfk.
I'm learning and so it took all day and I wasted 4' of tubing that I misshaped or cut wrong. I like the end results though. Luckily, I'm not in a hurry and ordered more than enough material to take that into account. By the way, for anyone who cares, it's the copper/nickel alloy tubing and it was awesome to work with. I just installed the pre-formed stainless brake lines and that stuff is impossible in comparison.
I hope you're wrong, but I will re-measure for the jack box. I had already and calculated I was good. The measuring tape will tell. If not, I guess I'll have to figure it out. EDIT: I just hit the body with my measuring tape. I have 8" from the frame mount to the outside of the jack box at the level of the filter. Then came the "am I doing more fiberglass work" moment of truth, 7" from the center of the frame mount hole to the inner most spot on the filter. One inch is good for me, and about half is lower than the box. Works for me. Thanks again. It's why I post here. .
Last edited by David Wilson; Nov 13, 2021 at 10:30 AM.
Filter regulator location
