AN Fittings, Hoses etc.

[I6Boost]

So here lately iv\\\'e been contemplating with replacing a lot of my hard lines
with SS Lines and AN fittings, just plan getting tired of breaking those things
and trying to remove them when replacing something.

Anyways i was just curious on how do you guys know what sizes to get?

If im not mistaken i know the majority if not all the bolts on the 7M motor have a 1.25mm thread
size correct? Now how do i know which size AN to get lets say for example the fuel hardlines?

I know that the increased velocity of a fluid flowing through a constriction causes a drop in pressure
so would i have any problems in such predicaments of replacing all the fuel hardlines with just a tiny bit bigger size SS hose?

Because a liquid will flow faster through a narrow section of a pipe and more slowly through the broad sections...

Any help is appreciated.

 

[whitemike]

To determine the size of the hose you need, you can use the formula: 1 AN ~ 1/16. Roughly. So if you need a 3/8 hose, 3/8 is equal to 6/16, so -6AN should do it. For the fittings, you would get metric to AN fittings. Example: If the line you're replacing is 12x1.25, you'd get a 12x1.25 to -6 AN fitting.

At least that's what I've learned.

Mike

 

[Enraged]

you'll have to search for the thread of each fitting, but just a suggestion: use push-lock connectors. alot cheaper than regular AN fittings, use black nylon braided hose, and they can easily handle the pressure requirements.

if i was going to do my engine again, i would go with the shadow/black and grey pushlock fittings with the nylon braided hose. the nylon braid won't stab you if it frays, and it won't eat through other lines if they are touching.

 

[kneedragger85]

I know that the increased velocity of a fluid flowing through a constriction causes a drop in pressure

:runaway:

 

[joel903]

I used this thread here http://www.toyota-supra.info/forums/mkiii-supra/11847-oil-feed-to-turbo-thread-size.html for the thread sizes and then replaced most of my hoses with AN or silicone.

 

[Poodles]

What hard lines would you be replacing?

 

[eraezer]

Dont forget to consider what kind of damage the fuel of your choice can do with the hoses.

 

[I6Boost]

Dont forget to consider what kind of damage the fuel of your choice can do with the hoses.

Yea, i wont be using anything higher than 93 but mainly im just concerned with fuel pressure in the case of larger lines as aforementioned.

Earls pro lite 350 looks good but again it doesnt go too profound with details such as what you can or cannot use it with...

the shadow/gray lines look to be much cheaper anyways within the aspect that im not going to be building a 1,000hp motor nonetheless.

@Poodles,

Just all the hardlines that come off the fuel rail.

 

[Enraged]

unless you are running E85, regular steel braided lines will be fine.

 

[I6Boost]

unless you are running E85, regular steel braided lines will be fine.

Yea i dont plan on ever running E85 but just for future reference what exactly does it do to the SS braided line?

 

[Poodles]

No real reason to run SS braided unless it's for looks...

 

[Enraged]

doesnt do anything to the SS, but the inner rubber line can get degraded from what i understand.

and poodles it right, there isnt really any performance benefit to going with braided lines, simply cosmetic

 

[Poodles]

They can actually wear on items around them causing damage as well...

 

[I6Boost]

They can actually wear on items around them causing damage as well...

Yea i understand, i mean partial reasoning is looks but again i absolutely \"hate\" all the hardlines...

Another question, i\'m pretty new at the whole tapping, i guess thats what you call it?

For instance (I don\'t plan on doing this) when people use the AN fittings + SS Braided line for the upper radiator hose how exactly did they get threads on the radiator and thermostat? It seems to be really thin.

 

[Enraged]

welding or brazing the fittings on, or machining a completely new thermostat housing (like duane and ron did)

 

[TurboStreetCar]

Just get aluminum/steel hardline. It attaches with the same AN fittings that you desire but is less then a dollar a foot.