bumping up compression

[Honda-Fanatic]

there i was again with an question, i searcht around a lot but could not find what i want to know.
If i want to bump compression, what are my options?

I could swap to an Y7 head, that would bump compression, but so far i think this head is nasty to get around here.
I could let the cumbustion chamers of my B2 weld square like the Y7
Other Pistons???
- Wich pistons will fit my B2 engine and bump compression?
- Are there any pistons available for the B2 that will do so?

I possible i would like a compression somewhere between 10:1 and 12:1
I know 12:1 is a little high to reach, but it is just for indication.

Greetings Honda-Fanatic

[civicmug]

http://www.knology.net/~jediklc/D.htm

you can use this to try different piston, head, block, milling, gasket combinations to see what happens... you can also enter your own values for different parts if you know what you are going to install...

... also check this...

http://www.c-speedracing.com/howto/claymotor/clay.php

good luck!

[Honda-Fanatic]

I could go for an Y7 head, that would give me an compression ratio of about 9,6:1. To accomplish the same i could weld my B2 head cumbostion chambers square like the Y7 has them.

Does an Y8/Z6 gasket or an Y8 2 layer gasket fit my B2 engine without giving problems??

Someone any ideas if there are pistons that will bolt on to my engine en give some more compression then the stock PM3 Flat tops??

Greetings Honda-Fanatic

[Honda-Fanatic]

Kicking it back up :D

[Honda-Fanatic]

So if i want to bump up the compression of my B2, what are my options?

With an Y7 head (or making the head CC of my stock B2 head 34.6CC) by the calculator i would get an CR of 9.8

Next; using an D16Z6 headgasket i would get a CR of 10.1,
or using an D16Y8 2 layer headgasket i would get a CR of 10.4.

But do the above headgaskets fit my B2 engine without causing any problems???

Are there other options to gain some compresion that will fit my B2 engine without causing any problems???

Greetings Honda-Fanatic-

[civicnar]

Thanks for a good compression calculator. I am also very interested in what you are trying to do. I have a Y8 that I am trying to up the compression. Also where can you find a 2-layer gasket. Thanks

James

[Honda-Fanatic]

I don't know where to find such a headgasket yet, but i first want to know what my options are.

But nobody has one or more answers to me?

Greetings Honda-Fanatic

[1point5crx]

alot of people make theyre own 2 layer h.g., purchase a real honda h.g. and peel 1 layer off then spray it with copper sealant then install, will help raise compression a tad. also have the head shaved down a bit. set your valve adjustment alittle tighter, that will help lift/duration a bit also, all tiny things to help just that little extra bit

[DOG]

http://store.summitracing.com/partdetail.asp?part=SCE%2D91364
http://www.nipponpower.com/engine/gasket/cometic.html

Yes they(y7/y8/z6 head gaskets will work. Dont forget the oil control jet if your swapping on a vtec or y7 head.

[Honda-Fanatic]

http://store.summitracing.com/partdetail.asp?part=SCE%2D91364
http://www.nipponpower.com/engine/gasket/cometic.html

Yes they(y7/y8/z6 head gaskets will work. Dont forget the oil control jet if your swapping on a vtec or y7 head.

I'm thinking about swapping to an Y7 head, but i rather keep my stock B2 head. I know this head flows less then an Y7 head, but even then i'd like to keep my original head. Maybe get an headjob, to lower Combustion Chamber volume to specs like the stock Y7 head, that should bump up the compression a little. And further there are less options, maybe an other headgasket, i don't know wich one to use best.

Greetings Honda-Fanatic

[DOG]

y7/y8 oem honda is what I use.

[civicnar]

Can I buy a fel-pro gasket from O'Reilly's and peel it into two pieces to raise my compression or do I need to get a gasket from Honda. Please let me know I was going to buy one today but I want to wait and see what I can do. Thanks

James

[Honda-Fanatic]

They fit my B2 engine without any modefications to the headgasket, or are there things to change before i put them on my engine?

If i use an 2-layer Y7 headgasket my compression should be something about 9.6:1 according to the compression calculator?
(http://www.knology.net/~jediklc/D.htm)

I don't get any troubles with valve clearence or somthing else, even if i install in the furture an EXOSPEED SR909 A6 Cam?

Greetings Honda-Fanatic

[almskidd]

i think the b2 vtec is like the y5 vtec head(or is it 6 i cant remember right now. I mean the vtech that comes in the 96-00 HX civic) It is a vtec with only two cam lobes and when vtec hits both valves run off of the bigger cam. otherwise the big cam and the small cam both run a sigle valve.

anyways this is just to let you know that the a6 cam will not work on the b2 head (if it really works just like the y5) someone with more knowledge will have to verify.

[civicnar]

I have never heard that but is the a6 head roller also like the HX head?

[Honda-Fanatic]

i think the b2 vtec is like the y5 vtec head(or is it 6 i cant remember right now. I mean the vtech that comes in the 96-00 HX civic) It is a vtec with only two cam lobes and when vtec hits both valves run off of the bigger cam. otherwise the big cam and the small cam both run a sigle valve.

anyways this is just to let you know that the a6 cam will not work on the b2 head (if it really works just like the y5) someone with more knowledge will have to verify.

The A6 should fit my head, i think you've got some engine mixed up. I don't have an B2 Vtec, it is the D15B2. just an non-vtec SOHC engine. I've already had gotten the info on this forum that my head is the same as the D16A6 head.

Greetings Honda-Fanatic

[almskidd]

wow i was really lost there!

[DOG]

No mods required. Y7, y8, z6, a6 will all fit on a b2 block. If you plan on putting a vtec head (z6.y8 ) or a nonvtec y7 head you must remove the oil control jet because those heads (y7,z6,y8 ) have the oil control jet in the head. b2, a6,b7 heads have them in the top of the block.

[n_23_s]

if it isn't already close your combustion camber. a lot of d-series head have open combustion chambers and you can use a thinner head gasket. another way is shaving you head down

[Honda-Fanatic]

I don't want to shave my head or anything else,

but i've been doing a lot of re-searching on this forum and i found that the PM7 pistons should fit my D15B2 engine en rods.. is this correct???

By the calculator (http://www.knology.net/~jediklc/D.htm) that should bump up my compression to about 10.7:1 Can i aspect any clearence problems, and with that domed pistons, can i still use a Exospeed SR909 cam in it, or going my pistons to smack the valves with that cam???

In what Honda engine come the PM7 pistons stock in? I think the D16A9/D16Z5, but i don't know for sure... Can anyone confirm???

Greetings Honda-Fanatic

[Honda-Fanatic]

No-one that has an answer to the above question???

Greetings Honda-Fanatic