Is this true? Non-ABS MC?

Post by **si import** » Mon Dec 03, 2012 3:59 pm

just wondering what would you gain from changing these

Post by **Ammo** » Mon Dec 03, 2012 4:08 pm

My BB4 non abs is stamped 2 T 2 and my ABD UKDM is stamped 2 T 3 it also has a 1 on it

That's about all I can see with them attached to the cars

Post by **Merlin** » Mon Dec 03, 2012 4:11 pm

si import wrote:just wondering what would you gain from changing these

More fluid being pushed through per cm of pedel travel and the feel associated with it. I didnt save the url but one page I was looking at was quoting numbers and came up with a number of 12% for incresed efficiency

. The difference may be greater once I upgrade to big KSport calipers as they most likely have a greater fluid capacity.

Edit

Drive 4 fun wrote: You are talking moving the volume of a cylinder of brake fluid of 1" vs 15/16." That is about 6% larger diameter, and radius. Volume of a cylinder is proportional to (radius) squared. The increased volume of fluid moved for the same pedal travel is about 12%. All of that assumes that I can remember and do math correctly. Mostly it means less pedal travel. The brake booster contributes to much of the feel or force.

http://honda-tech.com/showthread.php?t=2941185

Post by **si import** » Mon Dec 03, 2012 4:32 pm

cheers mate

Post by **indigolemon** » Mon Dec 03, 2012 5:56 pm

Find an abs 4g breaker?

Post by **indigolemon** » Mon Dec 03, 2012 6:58 pm

Damn, only read page one on the mobile. Sorry chaps, caught up now.

Post by **Merlin** » Mon Dec 03, 2012 8:04 pm

^

Digging my way through old PUK threads I found this nugget

Devil on the topic of JDM vs UKDM Master Cylinder wrote:There are actually 2 different sizes. One is 15/16" (I think), and the other is 1". Whether or not this is model or market dependable, I'm not sure.

Post by **vanzep** » Mon Dec 03, 2012 9:04 pm

indigolemon wrote:Find an abs 4g breaker?

hows it working out with the atr front brakes we put on your lude a few weeks ago?- id heard there were would probably be some pedal travel as the capacity of the 2 small pistons is greater than that if the 1 piston prelude caliper - maybe the 1" resevoir would sort that out

just a thought.

hmmm doesnt your lude have abs?

Post by **indigolemon** » Mon Dec 03, 2012 9:17 pm

ATR calipers are awesome man. Definitely a good shout grabbing those.

There is more travel but almost in a good way, it's much more progressive now and less on/off. And yes, my car came with ABS, so I'll have the 1" cyl already

Post by **vanzep** » Mon Dec 03, 2012 9:25 pm

good news - thought you might already have the abs mc - so possibly less pedal travel
but it sounds all good from what your saying
cant believe it was as easy putting them on as it was

hows the little french car that we did the front brakes on? now that was a pain int he arse to do