Twist lok Hose Fittings with Standard EFI Hose?

[Ol'Blue]

Probably a stupid question but can I use these Russell Tist Lock fitting with standard EFI Hose and install clamps? The directions for the EFI system show other barbed fitting with EFI Hose and EFI Hose clamps.

 

[ENDLIFE]

That is what I used. For the pressure side, I wanted to be sure I didn't have any hoses blowing off, so I used crimp clamps to make sure they stayed put. It has been running years strong, and I haven't had one leak yet.

 

[67crush]

Just did some of the same fittings on my power stroke, they said no clamps, But if you insisted put a tie wrap between barbs. Just finished FItech on the Bronco today, and used FI hose clamps on those. Your not supposed to use clamps at all, they say clamps crush hoe on high points of barbs and create leaks.
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[ENDLIFE]

I decided to use the Oetiker pinch/crimp clamps on the hose from years of working with boat cronies and racing guys. From what I learned is you can use the fuel injection clamps or the pinch clamps to better secure the high-pressure hose, but using the screw clamps was a big no no.

 

[EricLar80]

Probably a stupid question but can I use these Russell Tist Lock fitting with standard EFI Hose and install clamps? The directions for the EFI system show other barbed fitting with EFI Hose and EFI Hose clamps.

It will probably work and be fine, but it's not really the best idea. Having a hose come loose under the hood would lead to big problems...

 

[ntsqd]

It is the width of the clamp, not the clamp type that is the problem. The issue with that type of hose end is if the clamp does not fit down between the barbs with enough gap it WILL cut the hose liner. Not can, WILL. Once that happens the hose end to hose junction will leak.

Those fittings are designed to work, with the correct hose, and not need any clamp at all. I've done it! It does work this way. Most of the hoses made for those fittings are rated to 250 psi, and that is WITHOUT a hose clamp!

If you really feel the need for "belt & suspenders" instead of a hose clamp, place a Thomas & Betts (ONLY!!) tye-wrap over the hose, but between the barbs. Pull it up just to snug, not tight. The goal is to pull the hose down between the barbs and make it much harder for the hose to pull off.

 

[66BlueGoose]

It's best to get the fittings and the hose from the same supplier and then follow the intended application. The hose is designed to work with a specific fitting and vice versa. Mixing and matching might work but often leads to failure. And yes, there are several systems designed to be used with several hundred psi and no clamps. Follow the application based on fluid type, nominal pressure and peak pressure.