N55 Engine?

jparnes1 · 03-04-2012, 05:14 PM

So I was trolling the BMWUSA site and saw that they are saying the Z4 35i's engine has "TwinPower Turbo Technology" which is their marketing slogan for the N55 engine. Are they equipping this model with the N55 engine? That's news to me. I thought they retained the N54 in the 35i and 35is. I couldn't find any answers by Googling. Anyone know the answer to this?

Baremeg55 · 03-04-2012, 05:50 PM

Quote:

Originally Posted by jparnes1

So I was trolling the BMWUSA site and saw that they are saying the Z4 35i's engine has "TwinPower Turbo Technology" which is their marketing slogan for the N55 engine. Are they equipping this model with the N55 engine? That's news to me. I thought they retained the N54 in the 35i and 35is. I couldn't find any answers by Googling. Anyone know the answer to this?

No, the previous 35i and 35is both had the twin turbo engines.

09cbb · 03-04-2012, 05:52 PM

Quote:

Originally Posted by jparnes1

So I was trolling the BMWUSA site and saw that they are saying the Z4 35i's engine has "TwinPower Turbo Technology" which is their marketing slogan for the N55 engine. Are they equipping this model with the N55 engine? That's news to me. I thought they retained the N54 in the 35i and 35is. I couldn't find any answers by Googling. Anyone know the answer to this?

That is correct, no N55 for Z4. I found the slogan confusing, too. The N54 is actually twin turbo charged, the N55 has a single turbo but with twin scroll (calling it TwinPower Turbo)

jparnes1 · 03-04-2012, 05:55 PM

Quote:

Originally Posted by 09cbb

That is correct, no N55 for Z4. I found the slogan confusing, too. The N54 is actually twin turbo charged, the N55 has a single turbo but with twin scroll (calling it TwinPower Turbo)

Right, that's why I wasn't sure why they used the TwinPower Turbo slogan. I'm wondering if they changed engines for 2012.

cdeslandes · 03-04-2012, 05:56 PM

I believe the 35i switched to the N55 engine in 2011. The 35is retained the N54.

jparnes1 · 03-04-2012, 05:58 PM

Quote:

Originally Posted by cdeslandes

I believe the 35i switched to the N55 engine in 2011. The 35is retained the N54.

They use TwinPower turbo in their description of the 35is engine also.

09cbb · 03-04-2012, 06:14 PM

Quote:

Originally Posted by cdeslandes

I believe the 35i switched to the N55 engine in 2011. The 35is retained the N54.

I just looked into this. There hasn't been an engine change for the 35i, but they retroactively apply the TwinPower Turbo moniker to all turbo charged N54 and 55.

If you are into tuning, the N54 is the better choice - more potential....

jparnes1 · 03-04-2012, 06:20 PM

Quote:

Originally Posted by 09cbb

I just looked into this. There hasn't been an engine change for the 35i, but they retroactively apply the TwinPower Turbo moniker to all turbo charged N54 and 55.

If you are into tuning, the N54 is the better choice - more potential....

Thanks for the clarification. Where'd you find this info?

STOOF · 03-04-2012, 06:33 PM

Quote:

Originally Posted by cdeslandes

I believe the 35i switched to the N55 engine in 2011. The 35is retained the N54.

WRONG!

2011 35i and 35is both have N54

jparnes1 · 03-04-2012, 06:36 PM

Quote:

Originally Posted by STOOF

WRONG!

2011 35i and 35is both have N54

I was asking about the MY 2012 since that's what they're showing on the BMW website. I know the 2011 had the N54 because I owned one.

Nv Z · 03-04-2012, 07:08 PM

The 2012 Z4 35i and 35is still use the twin turbo N54 engine. Still the same as 2011.
Look at the 2012 catalog, pages 13 and 39, where they discuss engines. Twin-scroll for the 20i and 28i, two turbos for the 35i and 35is.

jparnes1 · 03-04-2012, 07:33 PM

Thanks NV Z. That confirms it.

Baremeg55 · 03-04-2012, 08:10 PM

Quote:

Originally Posted by jparnes1

Quote:

Originally Posted by STOOF

WRONG!

2011 35i and 35is both have N54

I was asking about the MY 2012 since that's what they're showing on the BMW website. I know the 2011 had the N54 because I owned one.

I think what Stoof and I were both trying to say is the year models 2011 engine remains unchanged for 2012, twin turbos for the 35i and 35is.....

jparnes1 · 03-04-2012, 08:19 PM

Quote:

Originally Posted by Baremeg55

I think what Stoof and I were both trying to say is the year models 2011 engine remains unchanged for 2012, twin turbos for the 35i and 35is.....

Gotcha!

ZheHbKa · 03-05-2012, 06:45 AM

they are referring to N20, which is a single turbo twin scroll

az34 · 03-05-2012, 04:57 PM

Quote:

Originally Posted by cdeslandes

I believe the 35i switched to the N55 engine in 2011. The 35is retained the N54.

theres no n55 on Z4 35i or 35is.

jparnes1 · 03-05-2012, 05:19 PM

Quote:

Originally Posted by az34

theres no n55 on Z4 35i or 35is.

Yes, this has been settled.

Frank Costanza · 03-17-2012, 02:49 PM

The Z4 35i/s, 640 & 740 and 1M all use the N54.

Alext · 03-18-2012, 07:39 AM

And I reckon the N54 is the engine of choice vs the N55 - the N54 benefits from a stronger, forged crank plus Mahle pistons. I read the N55 has turkish made pistons and a cast crank so it can't support as much power (so a tuning company has stated).

teagueAMX · 03-18-2012, 11:27 AM

Quote:

Originally Posted by Alext

And I reckon the N54 is the engine of choice vs the N55 - the N54 benefits from a stronger, forged crank plus Mahle pistons. I read the N55 has turkish made pistons and a cast crank so it can't support as much power (so a tuning company has stated).

+1 That's my understanding as well.

03-04-2012, 05:14 PM	#1
jparnes1 Colonel 241 Rep 2,387 Posts Drives: 2016 340i, 2012 Z4 35i Join Date: Jan 2010 Location: NY iTrader: (1)	N55 Engine? So I was trolling the BMWUSA site and saw that they are saying the Z4 35i's engine has "TwinPower Turbo Technology" which is their marketing slogan for the N55 engine. Are they equipping this model with the N55 engine? That's news to me. I thought they retained the N54 in the 35i and 35is. I couldn't find any answers by Googling. Anyone know the answer to this? __________________ 2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus. 2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.
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03-04-2012, 05:56 PM	#5
cdeslandes Captain 27 Rep 676 Posts Drives: 2010 Z4 s35i Join Date: Apr 2010 Location: Connecticut iTrader: (0) Garage List 2014 Jeep Wrangler ... [0.00] 2013 Volvo XC90 [0.00] 2010 BMW Z4 sDrive35i [8.67]	I believe the 35i switched to the N55 engine in 2011. The 35is retained the N54. __________________ 2010 BMW Z4 s35i 2014 Jeep Wrangler Rubicon 2013 Volvo XC90
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03-04-2012, 07:08 PM	#11
Nv Z New Member 2 Rep 27 Posts Drives: 2012 Z4 35is Join Date: Jan 2012 Location: Reno, Nevada iTrader: (0)	The 2012 Z4 35i and 35is still use the twin turbo N54 engine. Still the same as 2011. Look at the 2012 catalog, pages 13 and 39, where they discuss engines. Twin-scroll for the 20i and 28i, two turbos for the 35i and 35is.
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03-04-2012, 07:33 PM	#12
jparnes1 Colonel 241 Rep 2,387 Posts Drives: 2016 340i, 2012 Z4 35i Join Date: Jan 2010 Location: NY iTrader: (1)	Thanks NV Z. That confirms it. __________________ 2016 340i XDrive, EBII/black, 6 MT, M Sport, Track Handling, Cold Weather, Tech, Lighting, Driver Assistance Plus. 2012 Z4 35i, ED 2/24/2012, Melbourne Red Metallic, Black Leather, Carbon Trim, 6MT, M Sport, CW, PP, PS, NAV, CA.
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03-05-2012, 06:45 AM	#15
ZheHbKa Lieutenant Colonel 77 Rep 1,793 Posts Drives: the Wind Join Date: Jul 2007 Location: NYC iTrader: (0) Garage List 2014 BMW 335 Xi [10.00]	they are referring to N20, which is a single turbo twin scroll __________________ 2014 F30 335 X-Drive \| 6-MT \| Alpine White/Coral Red \| ZMM ZDH ZDA \|
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03-17-2012, 02:49 PM	#18
Frank Costanza Private First Class 4 Rep 152 Posts Drives: 540i/6, Z4 35i Join Date: Oct 2010 Location: Toronto iTrader: (0)	The Z4 35i/s, 640 & 740 and 1M all use the N54. __________________
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03-18-2012, 07:39 AM	#19
Alext Banned 138 Rep 2,042 Posts Drives: B M W Join Date: Apr 2008 Location: Everest iTrader: (2)	And I reckon the N54 is the engine of choice vs the N55 - the N54 benefits from a stronger, forged crank plus Mahle pistons. I read the N55 has turkish made pistons and a cast crank so it can't support as much power (so a tuning company has stated).
	Appreciate 0 Quote

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