Focus st170 turbo
#1
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Focus st170 turbo
Hello people, I've got an st170 lump to put in a mk1 fiesta. I've been offered some forged rods and pistons from a silvertop zetec. Is there anyway these fit as they are an attractive price!!!
Thanks for any information
Scotty
Thanks for any information
Scotty
#2
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They will fit,but the con rods are different lengths, thus affecting your comp ratio, you will need to find someone to properly calculate it in a dummy build! It will also depend on the crown of the pistons or what pistons you use!
thanks
#3
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Thanks for your reply! I've got some wossner pistons on offer. I can get the measurements from my friend. The reason I'm desperate to know is they are oversize and I'd have to rebore the block. If they won't work I will prob just go n/a for the mo and just slap some new rings in there. I can calculate the static comp ratio with these new rods, pistons, a focus rs headgasket and the combustion chamber but do I need to worry about the dynamic ratio at all?
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18-08-2015 06:09 AM