hot-J

Trying to figure out if i ahould go -8 forward and -6 return or -10 forward and -8 return.

beentherebaby

Hoses aren't rated by HP. Flow volume is a function of hose I.D. area and pressure. The longer the line the larger the area or higher the FP required to prevent a drop in flow volume.

What HP level are you working with?

Travis - sflraver

@ -8 / -6 your point of restriction will still be in the hard lines. Larger lines should not be required for any 944 application, no matter how exotic.

Tom M'Guinn

My car made 500/500+/- with -8 and -6....

theedge

-8AN and -6AN will supply more than enough.

hot-J

Great thanks guys!

gt37vgt

is -8 8/16 or 8/32 ID ??? so half or quarter ??are we talking 3 bar over manifold pressure fuel delivery ??

Rogue_Ant

-8 is 8/16"

And hose size with fuel injected vehicles does not matter so much as it did/does with carburetors...

fortysixandtwo

For a hose, figure about 1/16" ID for every -#. So -8 = 8/16.
Now, being tubing or hose, the measuring system is all screwed up. If you take a caliper or a pin gauge to the ID of an Aeroquip -8 SS braided hose, it will measure .44" , not the 0.5" you would expect.

As for the size. Yeah, -8 supply and -6 return will be enough for any amount of HP you will get out our engines.

Chris White

Are you surprised? It’s a government created specification!