90 Degree Caliper brake fitting?

[woytovich]

In order to keep my long front brake lines between my caliper and hard line away from my shock absorber I was thinking of using/getting/adding a 90 degree fitting at the caliper end.

Is there a correct size/metric hose or adapter fitting available or am I better off using adapters to go to AN hose? I THINK these fittings will do it for me that way:

Caliper 10mm to AN -3:
http://www.summitracing.com/parts/ear-592032erl/overview/


EDITED:
-3 AN<>AN 90:
http://www.summitracing.com/parts/ear-966303erl/overview/

Then use a -3 AN hose to a AN<>10mm adapter:
http://www.summitracing.com/parts/ear-989538erl

 

[ntsqd]

I guess that's a part of my build that I didn't document. -3 AN brake hoses with 90° hose ends at the calipers.

DO NOT USE ALUMINUM FITTINGS IN BRAKE SYSTEMS.

I make all of my own hoses with parts from ormebros.com, call them, they're very good on the phone. I order one extra of each type of fitting and enough extra hose to make the longest hose on the vehicle. Those extra parts get put in a sealed bag ("Seal-A-Mealed" when possible) and carried in the rig.

 

[woytovich]

DO NOT USE ALUMINUM FITTINGS IN BRAKE SYSTEMS.

Why not?... Electrolytic corrosion?

 

[woytovich]

I guess that's a part of my build that I didn't document. -3 AN brake hoses with 90° hose ends at the calipers.

Can you post a picture of the 90 installed?

Do you have the part numbers you used?

 

[woytovich]

So this steel 90 degree instead:

http://www.summitracing.com/parts/ear-966303erl/overview/

 

[JohninFla]

I used a banjo fitting to ensure I had clearance when the wheels are turned all the way to the stop. My NAPA shop makes brake lines.

 

[woytovich]

so a 10mm to AN banjo adapter?

 

[JohninFla]

I had the hose made with a banjo on one end, M10 on the other. I think it was 18 inches? give or take?

 

[woytovich]

I had the hose made with a banjo on one end, M10 on the other. I think it was 18 inches? give or take?

And you are using a banjo bolt that is 10mm inverted? Sourced from Napa also...?

 

[JohninFla]

yes. bought the hoses, banjo bolts and washers all together.

check my build post, I thought I had info in there. I am posting from my phone or I would do it,

 

[woytovich]

yes. bought the hoses, banjo bolts and washers all together.

check my build post, I thought I had info in there. I am posting from my phone or I would do it,

I looked but couldn't find specifics...

 

[ntsqd]

I guess that's a part of my build that I didn't document. -3 AN brake hoses with 90° hose ends at the calipers.

Can you post a picture of the 90 installed?

Do you have the part numbers you used?

I didn't keep the invoice (don't want to know what I've spent) so no idea of p/n's, which is why I suggest calling them if you go in this direction. I looked for a pic in my build and I don't have one. Closest that I have is this one, and it doesn't show much:

DO NOT USE ALUMINUM FITTINGS IN BRAKE SYSTEMS.

Why not?... Electrolytic corrosion?

Pressure rating and fatigue life.

The banjo bolt won't have the inverted flare features, but all inverted flare threads (metric and SAE) are standard fine thread bolt threads, not some off-the-wall special thread.

 

[JohninFla]

Sorry, I thought there was more.

I had the caliper in my hand and had the hoses made. M10 fitting, std copper washers, std banjo boot. Just like a motorcycle brake set up.

There is also a longer hose that you need going from the front axle to the frame, and rear axle to the frame if you are doing the lift.

I can take a pic of the caliper end in the morning, if it helps

 

[woytovich]

I can take a pic of the caliper end in the morning, if it helps

That would be great...

I have the longer Raybestos BH38809 hoses... I was just trying to make things better where the shock makes contact with the hose. I would love to get a 90 degree or banjo that would give me a female 10mm (like is on the caliper) for my hose to screw into.

 

[woytovich]

Ok... I went to a local hydraulic hose shop and had 2 hoses made... They are a 10mm male to -4AN male adapter to a -4AN female 90 degree hose end to the hose to a 10mm female hose end... 22" long.

They cost $33 each and they made them in 10 minutes. I took a caliper with me to verify the 10mm x 1 sizing. Stainless would have been about $10 more each.

 

[JohninFla]

That is the ticket! I think ingot hit for $35

 

[woytovich]

Just about the same thing, made from adapters and -4AN hose, would be a tiny bit cheaper from Summit Racing, once you add shipping. (but you are adding one more connection point per hose assembly).
Note this one is braided steel hose - so an "upgrade" there I think...

 

[ntsqd]

-4 is OK for the clutch. You don't want it for brakes. -3 AN only for brakes. It won't be an upgrade. Usually using 1/4" or -4 in brakes makes them feel mushy even though there is no air in the system.

The dash number is the numerator of a 16's fraction. So -4 is roughly 4/16 = 1/4" and -3 is roughly 3/16"

 

[woytovich]

-4 is OK for the clutch. You don't want it for brakes. -3 AN only for brakes. It won't be an upgrade. Usually using 1/4" or -4 in brakes makes them feel mushy even though there is no air in the system.

The dash number is the numerator of a 16's fraction. So -4 is roughly 4/16 = 1/4" and -3 is roughly 3/16"

Is the theory behind this that the larger hose will allow for more flex under pressure than the smaller hose?

Assuming that is true in theory does it make any real-world difference when applied to 2 or 4 20" long hoses under a Land Cruiser (as opposed to, say, the whole brake system under a Porsche)?

 

[ntsqd]

The difference in both system fluid volume and in the change in volume due to pressure makes -4 a poor choice for brakes. Every aftermarket brake mfg that I know of, including my former employer wilwood, specifically recommends against using -4 in brakes. Can use it in hyd clutches because the pressure isn't high enough to generate much volume change.

It's not just theory, it's real world.