B18C Pistons

[LatinoHatchCrap]

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

You should get all the necessary seals and o-rings+ cambelt changed if it hasnt already been done.
I agree with thangy as well. ITR .25mm o/s pistons would've pushed your c/r past 11.5 which is perfect territory for lumpier cams. Dont look past balancing your rods and testing your rod bolts for any existing stress fractures.
Tuning is gona be the key to any higher than stock c/r setup anyways so have enough left in your wallet to get tuned with whoever you trust.
gl and let us know how you go

[hondar]

boojang website is good.

An O/s pistons is better if you want to be on the safe side if you dont know how old is your engine.

Get someone trustworthy to bore the cylinder and make sure they are bored properly and not some shody job.

make sure you get the right rings as well.

also make sure that you calculate both the static and dynamic compression of the engine.

what bojang did is to help you calculate the static compression. You need to calculate the dynamic compression as well.

The link is as follows to calculate dynamic compression

http://www.rbracing-rsr.com/comprAdvHD.htm

hope that helps.

[Dvius_Honda]

hey


ok i have done all them tests etc... and roughly know that my compression ratio will go from 9.8:1 to 11.2:1....

so i got that all straight., i have started putting the pistons etc in today...
so now what i wanna know is: what differences in terms of power will i expect from doing this modification??? i know it will remove my flat spot between 5 - 6 rpm and should make my fuel economy better (depending on how i drive it) but does any one know the power results or anthing else from experience????

thanks alot for all your replies

[McChook]

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

Just want to say one important thing - if you have a larger budget, do the aftermarket thing - Buy some JEs or some Arias. It doesn;t make the car any less drivable?? what makes you say that anyways????

[hondar]

hey


ok i have done all them tests etc... and roughly know that my compression ratio will go from 9.8:1 to 11.2:1....

so i got that all straight., i have started putting the pistons etc in today...
so now what i wanna know is: what differences in terms of power will i expect from doing this modification??? i know it will remove my flat spot between 5 - 6 rpm and should make my fuel economy better (depending on how i drive it) but does any one know the power results or anthing else from experience????

thanks alot for all your replies

you actually get the cams that you want first before choosing the pistons. not the other way round.

if you have a itr or ctr cams, then you choose a pistons set that will give you the right compression. not choosing the compression and get the cams as your cams choice will be determinded by your goal.

how much power you will gain? it should be around a standard type r engine if what you are puttings is type r parts.

obviously there could be less if as an engine work harmoniously with other parts of the car and not stand alone.

what i mean, you need to look into the intake system and exhaust system as well.

if the engine is not having enough oxygen to do combustion, your car wont be fast. if your car dont expel the fume at the right volume and velocity, your car wont be taking in enough air (oxygen) either.

You see whats go in must come out before it can be filled again. you cant fill something if it is not vacuum.

every car is different and to ask people around what to expect in my opinion is not accurate. at best it is estimate which can go way off.

hope this answer a bit of your question