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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > BMW Performance Power Kit now available for N54 engines (part #'s, price and diagram)



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      02-23-2010, 05:09 PM   #507
marcel b
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Originally Posted by Purple All Sectors View Post
Thanks marcel b. I appricate your input. I'm a little disappointed with the BMW PPK. What was the temperature when you went to the track last time?
I got it up to 135C (150C is where power is reduced) which was higher then I expected based on the conditions. Lets see in spring with normal temps and pushing full laps. Hope to stay below 130C with the setrab oilcooler and ETS FMIC...
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      03-04-2010, 03:41 PM   #508
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A link to my PPK and PE install. I'm REALLY hoping my car doesnt get butchered like jimk and jetz. I'll post more pics later.

...http://www.e90post.com/forums/showthread.php?t=357997
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      06-30-2010, 11:28 AM   #509
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Anyone done this in the UK?
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      09-10-2010, 09:35 PM   #510
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Does any of you have static radio kind problem after install power kit??
Cuz ever since I got the power kit the radio have really bad reception when engine start working and when I turn it off the radio is working fine
i don't know if it's software porb. or hardaware porb but it happened after install the PPK
anyone experience this ?
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      09-11-2010, 02:09 AM   #511
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nope, don't have this issue
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      09-11-2010, 04:34 AM   #512
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Originally Posted by acnhdernegw View Post
Does any of you have static radio kind problem after install power kit??
Cuz ever since I got the power kit the radio have really bad reception when engine start working and when I turn it off the radio is working fine
i don't know if it's software porb. or hardaware porb but it happened after install the PPK
anyone experience this ?
The install involves electrical changes. They may have forgotten to tighten the ground points, or other electrical issue. Ask them to re-inspect all the electrical work done.
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      10-14-2011, 11:51 PM   #513
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Exclamation

Any more Updates???
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      10-17-2011, 02:33 PM   #514
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The kit is in za house ! Not installed yet, but it is at the dealer and I have plenty of new info and pictures about it.

The box is HUGE, and it contais 3 layers of parts ! The software is delivered on a CD which has my VIN on it !

New sparkplugs are provided (regular ones) and they need to be changed every 60.000kms. The supplemental radiator is very lightweight and 100% aluminium.

Some pics below.
Does the New stage 2 BMW Power Kit still include sparkplugs?? For N54?
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      11-23-2013, 01:22 PM   #515
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Originally Posted by 767jetz View Post
...I went back and looked at the gear ratio differences between the MT and AT and saw that the AT is geared lower (numerically higher) than the MT which explains why my car feels faster off the line. Most of the perceived increase I noticed in the test car was in the mid range....On a side note, not related to the PK, I also noticed a more pronounced hesitation for the turbo to spool up in the MT, most likely due to the taller gear ratio compared to the AT. I wouldn't really call it turbo lag for fear of starting that debate here on this thread. It was very minor but still it was noticeable. And I've driven cars with real turbo lag, so let's not go there.
Somewhat OT... Just discovered this thread... Thanks for pointing out this fact! (above) In all the back-and-forth about Steptronic vs. manual, "loosing boost during shits", my quoting, over and over again, the SAE technical paper by BMW engineers showing how the prevent the boost from dropping during quick shifts, (retards ignition timing and keeps throttle open) etc... I never looked at the "elusive obvious"

The Auto is geared significantly lower than the manual in first through fourth gears!

I thought it was just a lower final drive ratio for the auto combined with taller gearing in all forward gears. But that's not the case. Here's how it breaks down:

1st Steptronic 15.4% shorter
2nd Steptronic 9.5% shorter
3rd Steptronic 8.0% shorter
4th Steptronic 7.6% shorter
5th manual 2.3% shorter
6th manual 12.2% shorter

So the auto has at least a 7.6% advantage in any gear lower than 5th, and a whopping 15% advantage in 1st gear (plus the torque multiplication until the torque converter locks up). The only place where the manual would have a clear advantage is in 6th gear acceleration without downshifting.

No wonder people on here are saying that the autos launch harder... No wonder the E9x 335i auto is only 0.2 seconds slower 0-60 mph, where in the E46's the difference was 0.5-0.6 seconds, and 0.6 seconds for the E9x 328's.

Or to put it another way: The Steptronic is built for the street, the manual is built for the Autobahn.

OK, back to the PPK...
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      01-01-2014, 06:41 AM   #516
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Thanks Notempo. Does anyone know why the ppk is lower upgrade for MT compared to AT. That implies a concern BMW have around MT but not for AT. But it's the AT guys that have the transmission concerns at larger power with unofficial upgrades?


Cheers
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