cymande

Hye,
i want to build a 2.1 zetec turbo (silver top), but i dont known the compression ration if i use the early forged c20let pistons (the same as xe but forged).
I only want 250 bhp with T3 or maybe gt28 turbo.
Thanx a lot for yours answers.

Ps : i have a mercury grey escort rs turbo S2, with ofab management, and i want to run more than 200 bhp now...

clarke5700

they are not the same as xe pistons. and if i rember they work out at around 7.5-1

cymande

I know they are not the same, they are identical but forged.
so what are the CR with this pistons on a zetec turbo.

cymande

up, up !!!
nobody can help me

xr2wishy

iTrader: (2)

i'm pretty sure they work out to be 8.2:1 if my memory serves me correctly, should get a result googling it.

clarke5700

wrong they are not identical other than forged they have compleatly different crowns!!

can you realy tell me the na pistons are the same as fi pistons other than the fact of being forged

let pistons work out at around the 7.5-7.8 to one as i had a set in my zetec as pictured