Is this true? Non-ABS MC?

Post by **Merlin** » Mon Dec 03, 2012 12:52 pm

Is it true that non-ABS Preludes (BB4 4th gen for example) use a 15/16th's brake master cylinder rather than the 1" which all other 2.2's use?

I have found on lings the regular ABS UKDM 2.2 46100-SM4-954) and a non-ABS from Australia/NZ 46100-SM4-033.

Can anyone comment or confirm?

Post by **si import** » Mon Dec 03, 2012 12:54 pm

both bb4s that ive had have had 15/16th master cylinders

Post by **Merlin** » Mon Dec 03, 2012 12:56 pm

Kool! 1" MC upgrade for me then

I have always said my 5th gen brakes feel much better than my BB4, this might begin to explain why.

Post by **Merlin** » Mon Dec 03, 2012 1:04 pm

Next thing though, is the brake booster the same diameter? Can I put a 1" MC from a 4th gen or a 5th gen (they are slightly different) on to my original brake booster if its the same, or should I use the one that comes with the 1"?

Im trying to read up on why the 5th got a slightly different MC and if there is any advantage to using a 5th gen one.

mercutio · Post by **mercutio** » Mon Dec 03, 2012 1:22 pm

are they the same though? there must be more difference than just size

Post by **Merlin** » Mon Dec 03, 2012 1:33 pm

mercutio wrote:are they the same though? there must be more difference than just size

You mean the 15/16 Vs the 1"? I dont know.

I am trying to find if there are differences between the 4th and 5th, there is very little info. In my mind why change the design if there is no difference

But you can't assume that

4G

5G

Post by **Merlin** » Mon Dec 03, 2012 2:20 pm

Well screw buying a new brake booster & MC from Honda. Both the 4th and 5th gens are a grand for both parts combined. Also the boosters / angle of the MC bolt holes are different on the 4th and 5th gens.

Post by **Merlin** » Mon Dec 03, 2012 2:22 pm

Yeah, it doesnt have ABS so it appears it has a smaller master cylinder.

Post by **Merlin** » Mon Dec 03, 2012 2:25 pm

Noice!!!

Post by **vanzep** » Mon Dec 03, 2012 3:39 pm

yeah non abs versions on 4th gens are 15/16th - ive got a spare and its stamped 15/16"s on the body - i will check this afternoon whats stamped on the body of the abs version of the 4th gen.
it would be excellent if theyre a straight swap
probably best to take the whole unit out in 1 piece with the booster
will let u know