Zetec 2ltr
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Joined: Sep 2008
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From: Malta
Zetec 2ltr
One question, how much can a turboed st170 engine take on a set of rods and pistons? My main concern are the thin maincaps.
Just looking into a new project, searching before diving head on.
thanks and happy christmas.
Just looking into a new project, searching before diving head on.
thanks and happy christmas.
I've found that life I needed.. It's HERE!!
Joined: Jan 2012
Posts: 1,055
Likes: 126
From: Linc's
Lots of talk across the net says the st bottom end is good for 350 max. But for every one saying it was reliable at 350 others will tell you it let go below 250. There are so many variables. Despite what people will tell you neither the rods or pistons are what you would traditionally call forged.
one thing the st pistons don’t like is Det’ the ring lands seem to let go.
The head is much better flowing than a Blacktop but you will never exploit it with standard pistons and the blacktop head saves messing about with the vvt. You still won’t reach its limits on standard pistons.
Mines built and being fitted, we will suck it and see this summer.
one thing the st pistons don’t like is Det’ the ring lands seem to let go.
The head is much better flowing than a Blacktop but you will never exploit it with standard pistons and the blacktop head saves messing about with the vvt. You still won’t reach its limits on standard pistons.
Mines built and being fitted, we will suck it and see this summer.
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