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I'm installing the same system inspired by noonie. I think it cost me all of 40 bucks. And I ruined a line before I got the bend right. I am using a smaller filter with a sintered brass filter that can be cleaned tho....I hope my flares hold pressure when I install it. New at flaring tubes here....
Here is a nice, easy, cheap way of doing it using brake tube with 45° flares. Filters with an fittings are also readily available and easy to flare the tube to fit (37°).
There is some very capable flex hose out there, but I don't see the need for for the expense of the hose and an fittings.
Modern fi engines all use a braided flex from to frame to engine as the pump is in the tank and fuel runs a much higher pressure. I have a truck that has a 15+ year oem crimped hose assembly with no leaks.
Noonie! Very nice. Next time I'll do it that way, I like it a lot.
Pete
Not sure if I'm missing something here. I've read all the posts and seems like everyone has forgotten about the rubber factory S hose that comes off the fuel pump on all our cars. Is that a safety factor, too? I'm sure someone will say it's OK because it's not on top of the engine or near the headers, but if it's like mine, it's darn close to the exhaust manifold. Just because the hose is located down low doesn't make a bit of difference. It's the gasoline fumes that will explode, first, and then the liquid will burn. I guess what I'm trying to say is that all the concern over these rubber hoses, fuel filters, and worm clamps seems to be a little blown out of proportion. The factory fuel pump puts out maybe 5-7 pounds of pressure. Certainly not enough to compromise your hoses and clamps if they are in good condition. I understand the concern with fire, but this is an engine that runs on gasoline and there are dangers with that. If you want to get paranoid, start thinking about all the possibilities. I had a welch plug pop out of a perfectly good Holley #6772 double pumper a few years ago. I had gasoline covering the intake manifold and running everywhere down onto the pavement until the engine died out. Luckily it didn't catch fire. But just think about the possibilities and you'll go crazy!!!
Duane
I'm installing the same system inspired by noonie. I think it cost me all of 40 bucks. And I ruined a line before I got the bend right. I am using a smaller filter with a sintered brass filter that can be cleaned tho....I hope my flares hold pressure when I install it. New at flaring tubes here....
Originally Posted by PeteZO6
Noonie! Very nice. Next time I'll do it that way, I like it a lot.
Pete
That pic I posted isn't mine, but from the thread I linked to in my post. The guy did a super nice job.
Using the brass tee was really the inspiration of some guy at GM years ago, they used that on the factory triple carb setups.
Here is one of my favorite carbs laying on a shelf that I did probably over 20 years ago. Same tee that has inverted flare and takes regular brake line tubing.
Here is a setup that needed a lot of work. First thing was to do the carb and add a smaller washable inline filter. This filter used 37° jic or AN ends.
Originally Posted by Duane4238
Not sure if I'm missing something here. I've read all the posts and seems like everyone has forgotten about the rubber factory S hose that comes off the fuel pump on all our cars. Is that a safety factor, too? I'm sure someone will say it's OK because it's not on top of the engine or near the headers, but if it's like mine, it's darn close to the exhaust manifold. Just because the hose is located down low doesn't make a bit of difference. It's the gasoline fumes that will explode, first, and then the liquid will burn. I guess what I'm trying to say is that all the concern over these rubber hoses, fuel filters, and worm clamps seems to be a little blown out of proportion. The factory fuel pump puts out maybe 5-7 pounds of pressure. Certainly not enough to compromise your hoses and clamps if they are in good condition. I understand the concern with fire, but this is an engine that runs on gasoline and there are dangers with that. If you want to get paranoid, start thinking about all the possibilities. I had a welch plug pop out of a perfectly good Holley #6772 double pumper a few years ago. I had gasoline covering the intake manifold and running everywhere down onto the pavement until the engine died out. Luckily it didn't catch fire. But just think about the possibilities and you'll go crazy!!!
Duane
That S hose is suction and when the engine is running chances are high that it will suck air before it leaks gas or fumes.
BTW, I've used rubber gas hose many times with no problems and never a fire but the steel lines are safer.
I bent the system in the pict below for a friend, uses a metal inline filter which can only barely be seen part of under the alternator, through a fuel block we made up ourselves, to the duals.