N54 info

teknoraver · 10-16-2015, 07:36 PM

Hi,

how can the N55 have the same power of the N54 with a single turbo?
maybe the N55 twinscroll turbo is more powerful that the N54 turbos?

or can it be because N55 does have the Valvetronic?

cheers,
Matteo

thkfast · 10-18-2015, 01:58 AM

[QUOTE=teknoraver;18759142]Hi,

how can the N55 have the same power of the N55 with a single turbo?

...because they are exactly the same!

scottp999 · 10-18-2015, 07:06 AM

Lots of info on n54 vs n55. N55 is a more efficient engine, but the n54 was more solid, robust, overbuilt. N54 forged crank, Forged cracked rods, high quality cast pistons. So all in all, the feeling is bottom end of the motor has better tolerances in n54.

teknoraver · 10-18-2015, 10:28 AM

[QUOTE=thkfast;18763979]

Quote:

Originally Posted by teknoraver

Hi,

how can the N55 have the same power of the N55 with a single turbo?

...because they are exactly the same!

I tought that the N55 has valvetronic while the N54 does not, right?
Also the turbos are different (two turbos vs one twinscroll)

Sgop335 · 10-18-2015, 10:48 AM

[QUOTE=teknoraver;18764975]

Quote:

Originally Posted by thkfast

I tought that the N55 has valvetronic while the N54 does not, right?
Also the turbos are different (two turbos vs one twinscroll)

May be he was sarcastic

you used n55 twice. Yes n55 is twin scroll.

Anyway, a 3 liter engine w one turbo can easily do 300. 100hp / liter is on the low side for turbo cars. Saab and GM did about 130 hp/ liter esp on the solstice gxp motor and that was say 10yrs ago.

The current production highest output is merc cla45 think, 180hp per liter.

teknoraver · 10-18-2015, 02:03 PM

[QUOTE=Sgop335;18765036]

Quote:

Originally Posted by teknoraver

May be he was sarcastic

you used n55 twice. Yes n55 is twin scroll.

Anyway, a 3 liter engine w one turbo can easily do 300. 100hp / liter is on the low side for turbo cars. Saab and GM did about 130 hp/ liter esp on the solstice gxp motor and that was say 10yrs ago.

The current production highest output is merc cla45 think, 180hp per liter.

Lol didn't noticed

Yes, actually cla45 has 180hp/l while VW has 150 hp/l in the S3, or 200 hp/l if the rumors about the Golf R 400 are true

10-16-2015, 07:36 PM	#1
teknoraver Registered 0 Rep 3 Posts Drives: Audi A3 Join Date: Oct 2015 Location: Milan iTrader: (0)	N54 info Hi, how can the N55 have the same power of the N54 with a single turbo? maybe the N55 twinscroll turbo is more powerful that the N54 turbos? or can it be because N55 does have the Valvetronic? cheers, Matteo Last edited by teknoraver; 10-18-2015 at 02:00 PM..
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10-18-2015, 01:58 AM	#2
thkfast Major 261 Rep 1,029 Posts Drives: 2015 F82 M4 Sakhir Orange DCT Join Date: Mar 2009 Location: Cedar Rapids, IA iTrader: (1)	[QUOTE=teknoraver;18759142]Hi, how can the N55 have the same power of the N55 with a single turbo? ...because they are exactly the same! __________________ "The likelihood of one individual being right increases in direct proportion to the intensity with which others attempt to prove him wrong." 2015 F82 M4 - Sakhir Orange Metallic 2013 E92 M3 / 2013 E92 335is / 2010 E90 335i / 2007 E90 335i
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10-18-2015, 07:06 AM	#3
scottp999 Brigadier General 133 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	Lots of info on n54 vs n55. N55 is a more efficient engine, but the n54 was more solid, robust, overbuilt. N54 forged crank, Forged cracked rods, high quality cast pistons. So all in all, the feeling is bottom end of the motor has better tolerances in n54.
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