Does anyone know the specs of the pistons?

Specifically how many CC's the piston displaces at TDC.

I'm building a B20Vtec using RS ITR's, GSR cylinder head w/Supertech Flat Faced valves and a 3 layer headgasket... I'm just trying to figure out what the compression is going to be.

 

i would also like to know as well, supposably rs said high 11's

 

which we all know is a near worthless quote. i wish everyone would just let us know the cc of dome so it's possible to really know what the compression will be.

 

Yea, so does anyone know?

 

I'm guessing RS does - have you tried calling them?

 

Wow, awesome thanks. After my dealings with RS I'd rather not call them if I dont have too.

I've seen it posted on here once before, but haven't found that thread.

Thanks for your help.

 

RS Machine B20 Type R Piston *Specs based off 84mm Piston





Compression Ratio Table : RS B20 Type R Pistons

 

anyone have the weight in grams of the RS 84, 84.5, and 85mm piston?

along with piston-wall clearance specs? i'd like to run them as tight as OEM, but i cant be certain that these pistons have the same properties as oem.

these also work 100% compatibly forged rods? (example carillo pro A

 

Awesome thanks.

As far as the rest of your questions, I dont know. I'll call the machine shop doing my block work Monday and find out the weight of the pistons for you.

I know they're compatible with either stock rods or forged. They come with spiral locks, or whatever they're called.

 

awesome!!

 

Yeah, they are awsome. I have a Brand new set for sale cheap. pm me

 

yea id' be very intested in the weight as well.

 

Ill call them in a few minutes.

 

from the site yes there totally compatiable with forged rods . it says if used with oem rods dont use the provided clips

 

312 grams.