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View Full Version : Brake hose size?



Krooser
10-21-2018, 07:15 PM
I see quite a few localguys using -3 brake hoses... I have -4 in stock and have only used that size in the past. I'll be using Wilwood NDL calpiers next season.

Any reason not to use my. -4 lines? Qht size hard lines do you guys use?

TheJet-09
10-21-2018, 07:52 PM
I use 3/16" hard lines and -4 for the hoses, with zero issues (that I'm aware of). I've heard there is less "flex" or "expansion" with the -3, but in my feeble, stubborn mind, I don't buy that there is any expansion...but what do I know.

Krooser
10-21-2018, 08:55 PM
I still have several sticks of 3/16 steel lines from when I did a lot of hot rod stuff and general all around brake work. I learned to stock it when I always wound up needing some line at 9pm Sunday night when trying to finish a late night brake rebuild.

I know this new alloy line material is ez to work with but I have the old style on hand so I'm likely going to use it.

I agree with you about hose expansion btw.

Thanks.

PS..I'm cleaning my shop this weekend... I've found about $800 in parts I didn't know I had!

ZERO25
10-21-2018, 09:10 PM
FYI......the number of an AN fitting is in sixteenths......-3 is 3/16!

fast_crew
10-22-2018, 12:57 PM
Going from -4 to -3 hoses will give slightly better pedal feel ( less expansion, less pedal travel) going from -3 to -2 is really not noticeable.