B18C Pistons

Hey all...

ok before everyone says go do a search etc... i have been doing that for the last couple of hours. And i only found topics that lightly touched the issue...

anyways... i have a b18C1 with a B16A head - the compression ratio, needs to be raised to get the full benifit of the b18c over a b16a. So i got myself some brand new Jap spec Integra Type R pistons with pins and rings and a 2 layer head gasket. - this should be enough to do the trick.

But could anyone who has done this before tell me exactly what needs to be done and other parts that need = like piston bearings... I know that this is quite a big job...

Anyways Any help will be much appreciated

Thanks

Fair topic start thi one.

Firstly - what was the compression with the B16a Head
What is the compression ratio of the B18C5 pistons in Japanese trim
How thick is the gasket - and what brand

If you want to get serious, try some Aftermarket pistons... IE. JE's, Arias...

as olmo2r - he has done the same thing. saw his car in fast fours, damn it looks tight

i was told that the vti-r/gsr head was the best one for modification. something to do with it being a down draft design.

[talk from arse]
from what i've read... if you get the stock type-r pistons and rods with the b18c block, b16a head combo, you end up with stock type-r compression.
[/talk from arse]

Try this. This should be made a sticky because if you lose this link your gonna regret it.

http://www.bojangs.com/calculator/

[talk from arse]
from what i've read... if you get the stock type-r pistons and rods with the b18c block, b16a head combo, you end up with stock type-r compression.
[/talk from arse][/quote]

yes thats correct :D:D:D 11:0:1 cr with itr piston on b18/b16 setup...might as well get thin head gasket to make it 11:2:1... :D:D

Is that directed to me? Dude I just found the link, I dont even know if all that stuff is correct. But i'd rather forward it on, so maybe somebody could use it (if its correct), than keep it for myself considering I dont know all that much about the B series :?

I figured if the link was good and people enjoyed the link, maybe it could be in a sticky or something for people wanting to find out their CR, thats all..

direct to noone man...i use bojangs toooooooo.......thats a goooooooooooooooood site to check ur cr.... :D:D:D

hey firstly to answer mchooks reply...

my current compression ratio is 9.8:1 - which is extremely low for a honda.... as i have the B16a head on b16c block

my original plan was to source b16B civic type R pistons - which are 11.75:1. but couldnt find any. so i got a set of brand new jap spec integra type R pistons for a good price. THese will raise my car compression to 11.1:1.

I didnt want to go aftermarket pistons, because i want to keep the car completely drivable... and im limited to only 98 octane.

THe 2 layer head gasket should even raise the compression ratio more...

anyways i chasing up whats involved with installing the pistons???

Thanks alot

did u buy oversized pistons?

becausde that's what you should have done

u need to bored out to the new piston diameter
then isntall them

the ITR uses the same head as a B16A so the CR should be the same as an ITR.

Nah they are not oversize pistons... its a straight fit.

OLM-02R seeing as you have already done this conversion. what power increase did you get by raising the compression?

im hoping it will remove my flat spot between 5 - 6000 rpm


thanks.

anyone know a direct link to where i can find some helpful information on the installation process???