2012 BMW 528i - Inline 4 turbo

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07-29-2011, 04:54 PM

#21

Laur3ns

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Quote:

Originally Posted by Oscar

who drives around at 1200rpm?

My 535d all day around town in spouse mode.

07-29-2011, 06:38 PM

#22

18psi

VladiTuned

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Quote:

Originally Posted by Faeflora

So what do you do when it's OBD2 emissions scan time? I'm guessing if you still have the factory 02 sensors in place everything will be happy?

throw the stock downpipe back on (15 minute job)
flash it back to stock map (takes 30 seconds)
Done

07-29-2011, 11:14 PM

#23

Techsalvager

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hmm their using a twin scroll turbo, wonder if there is any other technology to increase low end output with the turbo.

07-30-2011, 05:29 AM

#24

Savington

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Quote:

Originally Posted by Techsalvager

hmm their using a twin scroll turbo, wonder if there is any other technology to increase low end output with the turbo.

Direct injection, probably variable cam timing, and an assload of base compression.

07-30-2011, 07:13 AM

#25

Scrappy Jack

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Quote:

Originally Posted by Oscar

I know, but even my DD (09 mazda2), doing 30 MPH in 5th is over 1200 rpm. When am I ever gonna be down that low in the rev range that I need all my torques? I have the habit of not lugging the engine below 2k-ish. Don't get me wrong, I think they've built a decent motor, but I'd be far more happier with a load of torque between 2.5-4k.

My guess is that the torque "curve" is pretty flat from 1200 - 5kish.