hey everyone i have just started puttin my zetec turbo together and if i use focus rs pistons do i still need to use the decomprssion plate and im also using the rover turbo inlet its already bolted to the head do i need to modify that at all.

 

if you have the black top zetec and focus rs pistons,there is no need for a de-comp plate unless you want to lower the compression more,you will also need uprated valve springs to run more than 8psi

 

Its the 2.0 silvertop im not after massive power about 180 to 200 hp so should i just stick with the decom plate

 

if its silver top im sure them focus rs pistons dont fit in silver top as they are black top pistons,yeah de-comp plate would be ok for that power

 

Thanks very much for clearing that up for me its prob just saved me alot of money.

 

sorry to hijack the theard but i have a similar question. so the rs pistons fit straight in a 2.0 blacktop? what bhp are these good for? cheers

 

the focus rs engine is a black top zetec in drag(duratec)on the rocker cover,im sure they good for 350hp ish

 

the rods and pistons will fit in a silvertop 2.0l engine fine ,but as far as im aware you cant get new rings for them and the block probably would need a rebore to be 100% so that rules them out imo.

 

Any engine machinist who knows his job will be able to get a set of rings to fit...

I've struggled for piston rings in the past and my machinist has normally sorted me a set in less than 20 minutes...

I wouldn't worry too much!

 

there you go then mate .

 

So if i take pistons and rods from a 2.0 zetec blacktop they will be ok to fit into my 2.0 zetec silvertop as i only have a bear block thanks.