Tech: Lethal Focus ST, Part 1

[EditorTurner]

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[SID297]

Based on these results I predict EcoBoost Mustangs down 400+ lbft with little effort. I still want a Focus ST.

 

[EditorTurner]

Let's hope that's what they mean by "engineered for Mustang performance."

 

[Voltwings]

Theres several turbo 4's out today capable of 400+ ft/lbs. The issue is the stock internals handling it, because stock turbos tend to make peak torque down low, typically in the 3000-3500 range.

 

[90goldtsiawd]

What are the bottom ends on these good for power-wise? Are they forged?

 

[Mach828]

Didn't realize the stock ST's only put down 7lbs of boost stock. And then adding 17lbs netted a gain of 15hp and 70tq. That little turbo must be out of steam.

 

[EditorTurner]

Keep in mind, this calibration offers a warranty...