Brake lines for Atlee Heavy Duty Extended Gear

[bearsnack]

I'm not sure about the science behind it but I worked on a Cessna 180 with -3 lines. It was extremely sensitive to locking up the brakes, I had to introduce a lot of air into the system to make it function properly.
I'm thinking 16- Bravo is right, somehow it works better. Anybody else have -3 lines on their brakes?

 

[KevinJ]

Older thread but does anyone have anything to add as far as one piece brake line size and length? Kicking around the idea of going to a -3 stainless braided line on Atlee 3" extended gear w/Steve's boosters. 66" length was thrown out earlier? Yet to measure existing length.

 

[Steve Pierce]

I use these fittings and hose.
https://www.summitracing.com/parts/AER-FBM1101

https://www.summitracing.com/parts/AER-FCC0420

 

[Gordon Misch]

From my experience. Smaller brake lines work better.

Smaller hose will experience less volumetric change due to stretching for a given applied pressure. Therefore, firmer pedal.

 

[bob turner]

Measurable? If so, it is a good argument against full length flex lines. I sort of doubt you could feel the difference.

 

[Gordon Misch]

I sort of doubt you could feel the difference.

I wonder about that also, just trying to come up with a plausible reason for smaller lines to feel like they work better.

 

[Oliver]

If you're not certified

http://www.jpcycles.com/search/search?Ntt=Universal+brake+lines&N=28012733&Ntk=All

 

[skywagon8a]

Older thread but does anyone have anything to add as far as one piece brake line size and length? Kicking around the idea of going to a -3 stainless braided line on Atlee 3" extended gear w/Steve's boosters.

Thinking of a -3 line instead of a -4? Think about it. The master cylinder is matched to the brake cylinder as to volume requirement which is very small. Since the volume needed is small there is no need for a large diameter line which would allow more flow without resistance. Your only concern is the transfer of pressure from one end of the line to the other. Use the smaller diameter line for weight savings.

 

[KevinJ]

Great points. I appreciate all the responses and links. As concious as I am about weight, that kind of all went out the window after installing 35"s and a belly pod. 10lbs off my a$$ would be the best weight savings measure. I'm guessing that the weight savings and pedal firmness between the -3 and -4 line is probably negligible given a properly functioning system. Every little bit helps, however, especially when stopping 35"s.