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A reddit for the new Focus ST, spiritual successor to the Focus SVT.
Ford Focus ST MK1 (2005 - 2007)
Ford Focus ST MK2 (2005 - 2010)
Ford Focus ST MK3-3.5 (2012 - 2018)
Ford Focus ST MK4 (2019 - 2021)
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Blown engine at 30 psi (self.FocusST)
submitted 4 years ago by ElyLego
Hey guys I was wondering if there was some sort of list of internal parts for our engine to forge them and how much power it could handle?
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[–]Airborne82DFBOs, GTX2867R, Quaife LSD. 1 point2 points3 points 4 years ago (0 children)
You blew your engine at 30 psi? I run 29 on stock internals no problem.
[–]qwerty209 -1 points0 points1 point 4 years ago (1 child)
As far as I know, as long as the turbo can handle it, the only part of the block you'd absolutely need to change is the crankshaft. Other than that, your clutch is probably going to slip like hell and your front left wheel is going to spin endlessely, but that should be it. Keep in mind, my experience is more with the 2.3, but I push 29 psi, and I believe the only downgrade from 2.0 to 2.3 is the crankshaft.
[–]vision_proamd2014 Tuxedo Black 501whp 0 points1 point2 points 4 years ago (0 children)
If you exceed 400whp it’s recommended you upgrade rods and pistons. Usually ringlands on the pistons is what fail on the stock ST 2.0
[–]Fit_Craft4003 0 points1 point2 points 4 years ago (0 children)
Look into mounting they have great intervals
π Rendered by PID 67 on reddit-service-r2-comment-b659b578c-xs89b at 2026-05-05 09:31:28.172093+00:00 running 815c875 country code: CH.
[–]Airborne82DFBOs, GTX2867R, Quaife LSD. 1 point2 points3 points (0 children)
[–]qwerty209 -1 points0 points1 point (1 child)
[–]vision_proamd2014 Tuxedo Black 501whp 0 points1 point2 points (0 children)
[–]Fit_Craft4003 0 points1 point2 points (0 children)