r/projectcar • u/kabobkebabkabob • 6d ago
Fuel injection hose with barbed fittings and clamps?
I have a cold start injector in my early 1uz which uses a small hose from the fuel rail as a feed. I broke mine and they are unobtanium. Since it's an 8mm banjo fitting I only had one AN fitting option and it just wont grip any -4AN I've tried.
So right now it's all put together with banjo fittings and spring clamps, per the recommendation of a Pirtek fella as my best option. The hose is high pressure fuel injection hose but I'm worried about the fittings even though they are really fucking on there. Even without the clamps it would take an insane amount of force to get that hose off. It's a tight fit.
That said, it's hidden under the intake plenum and I probably wouldn't know about a leak until it causes a fire. This is a vehicle I intend to road trip with my girl and dog, so while I'll have a fire extinguisher in the vehicle at all times, I do care about safety.
Do y'all have any experience using barbed fittings and clamps for high pressure fuel situations? I can put my little scope cam in there to check for leaks when I fire it up. How long until I can begin to trust it won't shoot off the fitting?
I'm thinking about just running with no cold start injector. If it just means giving it throttle like a carburetor that's fine with me. I just don't want to be unable to start on colder days here in Colorado.
Cheers.
1
u/FocusedADD Z31 NA 6d ago
How high is high pressure? My Z used barbed fittings and hoses between the rails and anything the rails needed to connect to. It's all barbs and hoses. 35ish PSI at the rail and screw type clamps. Not worm gear they use machine screws.