I know most of whats to be known about AN setups already. What I dont understand is how the steelbraided line attaches to the fittings. Do you have to glue it or is it some kind of compression fitting setup.

Just wondering.
Im setting up my fuel system soon.

 

visit www.summitracing.com

go to fasteners, fittings etc. You will see the pictures, the AN stands for the size of the fittings.

there are several sizes -3, -4, -6 and so on.

I belive most common size nitrous lines are -4 from the tank to the solenoids. To give you and idea.

The braided lines attach to the AN fittings via crimping they usually have a metal tube that gets crushed pushing against the hose once it's slid into the fitting. You can build your own lines with EARL fittings or with AEROQUIP fittings.

hope that helps

 

Get your hands on a Earl's catalog. It will explain everything you ever wanted to know but were afraid to ask.

 

http://www.earlsperformance.com/html/index.htm

 

so you just push the line into the fitting and your done?
sounds great if thats all you do.

you can cut the line to length right?

 

No, it's not that easy unless you use the "rice" style hoses with the hose end-looking sleeves that attach with a set screw. Here are the directions for the Earl's hoses:
http://www.earls.co.uk/direct/12_instructions.html

Yes, you can cut the line to length. Don't forget that the hose ends add to the length, so take that into account when cutting the hose. Here is an article with some tips, although I'm not sure if that chamfering stuff is such a great idea.
http://racingarticles.com/article_racing-28.html

The best instructions (not that I'm biased, hehehe) are in the Aircraft Spruce catalog, which is absolutely free in the US.
http://www.aircraftspruce.com/catmai...t=catorder.php

Also, you will probably want to get some aluminum AN wrenches and vice plates so you don't ruin the finish on the hose ends.

 

is a pain to put the fitting in the hose, i have problem when i started doing for the first that the braided part (the wires out side of the hose) was splitting and i couldnt get the fitting on. but after i did it a couple of times i know how to do it.

 

makes sense now. Thanks

 

in trying all the different brands of fittings, i find russells to be the easiest to fit. the threads are extended longer on the blue part. so they catch earlier and do the work for you.
also have found that strapping tape is the best to use for cutting. no frays when using this type of tape. i read before that you can use electric tape, but i had no luck. and messed up a few times. i always used a cutting wheel. never tried a saw.

 

Personally, I like Aeroquip. I had some Earls Swivels and they leaked all the time. When I tried the AQP Swivels, the leaks went away. The AQP swivel joints were much tighter than Earls'. My .02.

Craig

88 TII 80kmiles (no mods yet)

 

I have never tried Russel's, but I have had luck using both the Aeroquip and Earls fittings. I usually order Aeroquip stuff from Summit since it is a tad cheaper than the Earls. Whatever you do don't get the XRP stuff, I have used those fittings when I was in a pinch to get something done (a shop close to my place sells these, they are the only place I know of near me with AN fittings) and they are a PITA to use. The threads inside the fitting are much shorter so you have to shove the fitting in as hard as possible to get it started.

Matt