Quote:
Originally Posted by mxa121
very cool, although what psi do you guys think is realistic here? Most n54 tunes bring it up to around 16 psi I thought, and those put out impressive numbers on the same compression, bore, stroke, and volume.
Hmmmm. I see some forged internals in the specs, and additional cooling, but what will be the failure point with additional boost?
Personally, I would leave it bone stock. I think it will be an excellent package from the factory. Maybe give it the same treatment that my car now has, a PPK and PE. Sweet spot.
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I don't think BMW engineers a production engine to be within an inch of it's life and leaves headroom.
Granted, it might not have as much to gain as the N54, but it will show nice gains as I feel the 18psi and tuning is no where near maxed out.